From 4f7ea899256f941577a6f0ef96217ad737a1e2ce Mon Sep 17 00:00:00 2001
From: Frederic Guillot <fred@miniflux.net>
Date: Fri, 14 Aug 2015 21:33:39 -0400
Subject: [PATCH] Update dependencies

---
 common.php                                    |   2 +-
 composer.json                                 |   9 +-
 controllers/config.php                        |   2 +-
 controllers/history.php                       |   2 +-
 controllers/item.php                          |   2 +-
 cronjob.php                                   |   3 +-
 fever/index.php                               |  20 +-
 jsonrpc.php                                   |   7 +-
 models/config.php                             |  12 +-
 models/feed.php                               |  52 +-
 models/group.php                              |  20 +-
 models/item.php                               |  58 +-
 models/remember_me.php                        |  12 +-
 models/user.php                               |   2 +-
 vendor/composer/autoload_classmap.php         |   6 +
 vendor/composer/installed.json                | 155 +++--
 vendor/fguillot/json-rpc/.travis.yml          |  19 +
 vendor/fguillot/json-rpc/README.markdown      |  20 +-
 vendor/fguillot/json-rpc/composer.json        |   5 +-
 vendor/fguillot/json-rpc/phpunit.xml          |   2 +-
 .../src/JsonRPC/AccessDeniedException.php     |   7 +
 .../fguillot/json-rpc/src/JsonRPC/Client.php  | 214 ++++---
 .../fguillot/json-rpc/src/JsonRPC/Server.php  |  69 ++-
 vendor/fguillot/json-rpc/tests/ClientTest.php |  45 ++
 .../json-rpc/tests/ServerProtocolTest.php     |  20 +-
 vendor/fguillot/picodb/.travis.yml            |  19 +
 vendor/fguillot/picodb/README.md              | 298 +++++----
 .../fguillot/picodb/lib/PicoDb/Condition.php  | 291 +++++++++
 .../fguillot/picodb/lib/PicoDb/Database.php   | 179 ++++--
 .../picodb/lib/PicoDb/Driver/Base.php         | 192 ++++++
 .../picodb/lib/PicoDb/Driver/Mysql.php        | 211 +++++--
 .../picodb/lib/PicoDb/Driver/Postgres.php     | 190 ++++--
 .../picodb/lib/PicoDb/Driver/Sqlite.php       | 187 ++++--
 .../fguillot/picodb/lib/PicoDb/Hashtable.php  | 103 ++--
 .../picodb/lib/PicoDb/SQLException.php        |  14 +
 vendor/fguillot/picodb/lib/PicoDb/Schema.php  |  39 +-
 vendor/fguillot/picodb/lib/PicoDb/Table.php   | 571 +++++++++---------
 vendor/fguillot/picodb/phpunit.xml            |  15 +
 .../picodb/tests/MysqlDatabaseTest.php        | 100 +++
 .../fguillot/picodb/tests/MysqlDriverTest.php |  65 ++
 .../fguillot/picodb/tests/MysqlSchemaTest.php |  34 ++
 .../fguillot/picodb/tests/MysqlTableTest.php  | 313 ++++++++++
 .../picodb/tests/PostgresDatabaseTest.php     |  99 +++
 .../picodb/tests/PostgresDriverTest.php       |  70 +++
 .../picodb/tests/PostgresSchemaTest.php       |  34 ++
 .../picodb/tests/PostgresTableTest.php        | 312 ++++++++++
 .../fguillot/picodb/tests/SchemaFixture.php   |  19 +
 .../picodb/tests/SqliteDatabaseTest.php       | 119 ++++
 .../picodb/tests/SqliteDriverTest.php         |  62 ++
 .../picodb/tests/SqliteSchemaTest.php         |  30 +
 .../fguillot/picodb/tests/SqliteTableTest.php | 327 ++++++++++
 51 files changed, 3675 insertions(+), 983 deletions(-)
 create mode 100644 vendor/fguillot/json-rpc/.travis.yml
 create mode 100644 vendor/fguillot/json-rpc/src/JsonRPC/AccessDeniedException.php
 create mode 100644 vendor/fguillot/picodb/.travis.yml
 create mode 100644 vendor/fguillot/picodb/lib/PicoDb/Condition.php
 create mode 100644 vendor/fguillot/picodb/lib/PicoDb/Driver/Base.php
 create mode 100644 vendor/fguillot/picodb/lib/PicoDb/SQLException.php
 create mode 100644 vendor/fguillot/picodb/phpunit.xml
 create mode 100644 vendor/fguillot/picodb/tests/MysqlDatabaseTest.php
 create mode 100644 vendor/fguillot/picodb/tests/MysqlDriverTest.php
 create mode 100644 vendor/fguillot/picodb/tests/MysqlSchemaTest.php
 create mode 100644 vendor/fguillot/picodb/tests/MysqlTableTest.php
 create mode 100644 vendor/fguillot/picodb/tests/PostgresDatabaseTest.php
 create mode 100644 vendor/fguillot/picodb/tests/PostgresDriverTest.php
 create mode 100644 vendor/fguillot/picodb/tests/PostgresSchemaTest.php
 create mode 100644 vendor/fguillot/picodb/tests/PostgresTableTest.php
 create mode 100644 vendor/fguillot/picodb/tests/SchemaFixture.php
 create mode 100644 vendor/fguillot/picodb/tests/SqliteDatabaseTest.php
 create mode 100644 vendor/fguillot/picodb/tests/SqliteDriverTest.php
 create mode 100644 vendor/fguillot/picodb/tests/SqliteSchemaTest.php
 create mode 100644 vendor/fguillot/picodb/tests/SqliteTableTest.php

diff --git a/common.php b/common.php
index 7e2a904..c569320 100644
--- a/common.php
+++ b/common.php
@@ -41,7 +41,7 @@ defined('ENABLE_HSTS') or define('ENABLE_HSTS', true);
 
 require __DIR__.'/check_setup.php';
 
-PicoDb\Database::bootstrap('db', function() {
+PicoDb\Database::setInstance('db', function() {
 
     $db = new PicoDb\Database(array(
         'driver' => 'sqlite',
diff --git a/composer.json b/composer.json
index 9f8c941..3786ef4 100644
--- a/composer.json
+++ b/composer.json
@@ -4,11 +4,16 @@
     },
     "require": {
         "fguillot/simple-validator": "v0.0.3",
-        "fguillot/json-rpc": "v0.0.3",
-        "fguillot/picodb": "v0.0.3",
+        "fguillot/json-rpc": "v1.0.1",
+        "fguillot/picodb": "v1.0.1",
         "fguillot/picofeed": "v0.1.8",
         "fguillot/picofarad": "dev-master"
     },
+    "require-dev": {
+        "phpunit/phpunit": "4.8.3",
+        "phpunit/phpunit-selenium": "1.4.2",
+        "phpunit/dbunit": "1.4.1"
+    },
     "autoload": {
         "files": [
             "lib/helpers.php",
diff --git a/controllers/config.php b/controllers/config.php
index f9dd8f5..834df23 100644
--- a/controllers/config.php
+++ b/controllers/config.php
@@ -99,7 +99,7 @@ Router\get_action('generate-tokens', function() {
 Router\get_action('optimize-db', function() {
 
     if (Model\Config\check_csrf(Request\param('csrf'))) {
-        Database::get('db')->getConnection()->exec('VACUUM');
+        Database::getInstance('db')->getConnection()->exec('VACUUM');
     }
 
     Response\redirect('?action=database');
diff --git a/controllers/history.php b/controllers/history.php
index 0970e4f..5979614 100644
--- a/controllers/history.php
+++ b/controllers/history.php
@@ -12,7 +12,7 @@ Router\get_action('history', function() {
     $nb_items = Model\Item\count_by_status('read');
     $items = Model\Item\get_all_by_status(
         'read',
-        null,
+        array(),
         $offset,
         Model\Config\get('items_per_page'),
         'updated',
diff --git a/controllers/item.php b/controllers/item.php
index 10a15ba..85dc9da 100644
--- a/controllers/item.php
+++ b/controllers/item.php
@@ -15,7 +15,7 @@ Router\get_action('unread', function() {
     $direction = Request\param('direction', Model\Config\get('items_sorting_direction'));
     $offset = Request\int_param('offset', 0);
     $group_id = Request\int_param('group_id', null);
-    $feed_ids = null;
+    $feed_ids = array();
 
     if (!is_null($group_id)) {
         $feed_ids = Model\Group\get_feeds_by_group($group_id);
diff --git a/cronjob.php b/cronjob.php
index 7ab05ce..7989f52 100644
--- a/cronjob.php
+++ b/cronjob.php
@@ -27,8 +27,7 @@ $update_interval = ! empty($options['update-interval']) && ctype_digit($options[
 $call_interval = ! empty($options['call-interval']) && ctype_digit($options['call-interval']) ? (int) $options['call-interval'] : null;
 
 if ($update_interval !== null && $call_interval !== null && $limit === Model\Feed\LIMIT_ALL && $update_interval >= $call_interval) {
-
-    $feeds_count = PicoDb\Database::get('db')->table('feeds')->count();
+    $feeds_count = PicoDb\Database::getInstance('db')->table('feeds')->count();
     $limit = ceil($feeds_count / ($update_interval / $call_interval));
 }
 
diff --git a/fever/index.php b/fever/index.php
index f975f7f..b3e6624 100644
--- a/fever/index.php
+++ b/fever/index.php
@@ -41,7 +41,7 @@ function auth()
         }
     }
 
-    $credentials = Database::get('db')->hashtable('settings')->get('username', 'fever_token');
+    $credentials = Database::getInstance('db')->hashtable('settings')->get('username', 'fever_token');
     $api_key = md5($credentials['username'].':'.$credentials['fever_token']);
 
     $response = array(
@@ -118,7 +118,7 @@ route('favicons', function() {
 
     if ($response['auth']) {
 
-        $favicons = Database::get('db')
+        $favicons = Database::getInstance('db')
             ->table('favicons')
             ->columns(
                 'feed_id',
@@ -145,7 +145,7 @@ route('items', function() {
 
     if ($response['auth']) {
 
-        $query = Database::get('db')
+        $query = Database::getInstance('db')
                         ->table('items')
                         ->columns(
                             'rowid',
@@ -187,7 +187,7 @@ route('items', function() {
             );
         }
 
-        $response['total_items'] = Database::get('db')
+        $response['total_items'] = Database::getInstance('db')
                                         ->table('items')
                                         ->neq('status', 'removed')
                                         ->count();
@@ -215,7 +215,7 @@ route('unread_item_ids', function() {
 
     if ($response['auth']) {
 
-        $item_ids = Database::get('db')
+        $item_ids = Database::getInstance('db')
                     ->table('items')
                     ->eq('status', 'unread')
                     ->findAllByColumn('rowid');
@@ -233,7 +233,7 @@ route('saved_item_ids', function() {
 
     if ($response['auth']) {
 
-        $item_ids = Database::get('db')
+        $item_ids = Database::getInstance('db')
                     ->table('items')
                     ->eq('bookmark', 1)
                     ->findAllByColumn('rowid');
@@ -251,7 +251,7 @@ route('write_items', function() {
 
     if ($response['auth']) {
 
-        $query = Database::get('db')
+        $query = Database::getInstance('db')
                     ->table('items')
                     ->eq('rowid', $_POST['id']);
 
@@ -259,7 +259,7 @@ route('write_items', function() {
             $query->update(array('bookmark' => 1));
 
             // Send bookmark to third-party services if enabled
-            $item_id = Database::get('db')
+            $item_id = Database::getInstance('db')
                             ->table('items')
                             ->eq('rowid', $_POST['id'])
                             ->findOneColumn('id');
@@ -287,7 +287,7 @@ route('write_feeds', function() {
 
     if ($response['auth']) {
 
-        Database::get('db')
+        Database::getInstance('db')
             ->table('items')
             ->eq('feed_id', $_POST['id'])
             ->lte('updated', $_POST['before'])
@@ -303,7 +303,7 @@ route('write_groups', function() {
     $response = auth();
 
     if ($response['auth']) {
-        $db = Database::get('db')
+        $db = Database::getInstance('db')
                 ->table('items')
                 ->lte('updated', $_POST['before']);
 
diff --git a/jsonrpc.php b/jsonrpc.php
index cebfbef..6e23fef 100644
--- a/jsonrpc.php
+++ b/jsonrpc.php
@@ -4,10 +4,11 @@ require __DIR__.'/common.php';
 
 use JsonRPC\Server;
 use PicoFeed\PicoFeedException;
+use Model\Config;
 
 $server = new Server;
 $server->authentication(array(
-    \Model\Config\get('username') => \Model\Config\get('api_token')
+    Config\get('username') => Config\get('api_token')
 ));
 
 // Get version
@@ -115,7 +116,7 @@ $server->register('item.bookmark.delete', function ($item_id) {
 // Get all unread items
 $server->register('item.list_unread', function ($offset = null, $limit = null) {
 
-    return Model\Item\get_all_by_status('unread', null, $offset, $limit);
+    return Model\Item\get_all_by_status('unread', array(), $offset, $limit);
 });
 
 // Count all unread items
@@ -127,7 +128,7 @@ $server->register('item.count_unread', function () {
 // Get all read items
 $server->register('item.list_read', function ($offset = null, $limit = null) {
 
-    return Model\Item\get_all_by_status('read', null, $offset, $limit);
+    return Model\Item\get_all_by_status('read', array(), $offset, $limit);
 });
 
 // Count all read items
diff --git a/models/config.php b/models/config.php
index d498a76..4cf4b21 100644
--- a/models/config.php
+++ b/models/config.php
@@ -255,14 +255,14 @@ function new_tokens()
         'fever_token' => substr(generate_token(), 0, 8),
     );
 
-    return Database::get('db')->hashtable('settings')->put($values);
+    return Database::getInstance('db')->hashtable('settings')->put($values);
 }
 
 // Get a config value from the DB or from the session
 function get($name)
 {
     if (! isset($_SESSION)) {
-        return current(Database::get('db')->hashtable('settings')->get($name));
+        return current(Database::getInstance('db')->hashtable('settings')->get($name));
     }
     else {
 
@@ -281,10 +281,8 @@ function get($name)
 // Get all config parameters
 function get_all()
 {
-    $config = Database::get('db')->hashtable('settings')->get();
-
+    $config = Database::getInstance('db')->hashtable('settings')->get();
     unset($config['password']);
-
     return $config;
 }
 
@@ -339,10 +337,10 @@ function save(array $values)
 
     // If the user does not want content of feeds, remove it in previous ones
     if (isset($values['nocontent']) && (bool) $values['nocontent']) {
-        Database::get('db')->table('items')->update(array('content' => ''));
+        Database::getInstance('db')->table('items')->update(array('content' => ''));
     }
 
-    if (Database::get('db')->hashtable('settings')->put($values)) {
+    if (Database::getInstance('db')->hashtable('settings')->put($values)) {
         reload();
         return true;
     }
diff --git a/models/feed.php b/models/feed.php
index 0e293b2..5176c58 100644
--- a/models/feed.php
+++ b/models/feed.php
@@ -21,7 +21,7 @@ const LIMIT_ALL = -1;
 // Store the favicon
 function store_favicon($feed_id, $link, $icon)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
             ->table('favicons')
             ->save(array(
                 'feed_id' => $feed_id,
@@ -48,7 +48,7 @@ function fetch_favicon($feed_id, $site_url, $icon_link)
 // Return true if the feed have a favicon
 function has_favicon($feed_id)
 {
-    return Database::get('db')->table('favicons')->eq('feed_id', $feed_id)->count() === 1;
+    return Database::getInstance('db')->table('favicons')->eq('feed_id', $feed_id)->count() === 1;
 }
 
 // Get favicons for those feeds
@@ -58,7 +58,7 @@ function get_favicons(array $feed_ids)
         return array();
     }
 
-    $db = Database::get('db')
+    $db = Database::getInstance('db')
             ->hashtable('favicons')
             ->columnKey('feed_id')
             ->columnValue('icon');
@@ -86,7 +86,7 @@ function get_all_favicons()
         return array();
     }
 
-    return Database::get('db')
+    return Database::getInstance('db')
             ->hashtable('favicons')
             ->getAll('feed_id', 'icon');
 }
@@ -94,9 +94,9 @@ function get_all_favicons()
 // Update feed information
 function update(array $values)
 {
-    Database::get('db')->startTransaction();
+    Database::getInstance('db')->startTransaction();
 
-    $result = Database::get('db')
+    $result = Database::getInstance('db')
             ->table('feeds')
             ->eq('id', $values['id'])
             ->save(array(
@@ -111,12 +111,12 @@ function update(array $values)
 
     if ($result) {
         if (! Group\update_feed_groups($values['id'], $values['feed_group_ids'], $values['create_group'])) {
-            Database::get('db')->cancelTransaction();
+            Database::getInstance('db')->cancelTransaction();
             $result = false;
         }
     }
 
-    Database::get('db')->closeTransaction();
+    Database::getInstance('db')->closeTransaction();
 
     return $result;
 }
@@ -136,7 +136,7 @@ function import_opml($content)
 
     if ($feeds) {
 
-        $db = Database::get('db');
+        $db = Database::getInstance('db');
         $db->startTransaction();
 
         foreach ($feeds as $feed) {
@@ -168,7 +168,7 @@ function create($url, $enable_grabber = false, $force_rtl = false, $cloak_referr
 {
     $feed_id = false;
 
-    $db = Database::get('db');
+    $db = Database::getInstance('db');
 
     // Discover the feed
     $reader = new Reader(Config\get_reader_config());
@@ -206,7 +206,7 @@ function create($url, $enable_grabber = false, $force_rtl = false, $cloak_referr
     ));
 
     if ($result) {
-        $feed_id = $db->getConnection()->getLastId();
+        $feed_id = $db->getLastId();
 
         Group\update_feed_groups($feed_id, $group_ids, $create_group);
         Item\update_all($feed_id, $feed->getItems());
@@ -224,7 +224,7 @@ function refresh_all($limit = LIMIT_ALL)
     }
 
     // Auto-vacuum for people using the cronjob
-    Database::get('db')->getConnection()->exec('VACUUM');
+    Database::getInstance('db')->getConnection()->exec('VACUUM');
 
     return true;
 }
@@ -266,7 +266,7 @@ function refresh($feed_id)
 
                 // Don't fetch previous items, only new one
                 $parser->setGrabberIgnoreUrls(
-                    Database::get('db')->table('items')->eq('feed_id', $feed_id)->findAllByColumn('url')
+                    Database::getInstance('db')->table('items')->eq('feed_id', $feed_id)->findAllByColumn('url')
                 );
             }
 
@@ -298,7 +298,7 @@ function refresh($feed_id)
 // Get the list of feeds ID to refresh
 function get_ids($limit = LIMIT_ALL)
 {
-    $query = Database::get('db')->table('feeds')->eq('enabled', 1)->asc('last_checked');
+    $query = Database::getInstance('db')->table('feeds')->eq('enabled', 1)->asc('last_checked');
 
     if ($limit !== LIMIT_ALL) {
         $query->limit((int) $limit);
@@ -310,7 +310,7 @@ function get_ids($limit = LIMIT_ALL)
 // get number of feeds with errors
 function count_failed_feeds()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('feeds')
         ->eq('parsing_error', '1')
         ->count();
@@ -319,7 +319,7 @@ function count_failed_feeds()
 // Get all feeds
 function get_all()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('feeds')
         ->asc('title')
         ->findAll();
@@ -328,7 +328,7 @@ function get_all()
 // Get all feeds with the number unread/total items in the order failed, working, disabled
 function get_all_item_counts()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('feeds')
         ->columns(
             'feeds.*',
@@ -346,7 +346,7 @@ function get_all_item_counts()
 // Get unread/total count for one feed
 function count_items($feed_id)
 {
-    $counts = Database::get('db')
+    $counts = Database::getInstance('db')
         ->table('items')
         ->columns('status', 'count(*) as item_count')
         ->in('status', array('read', 'unread'))
@@ -374,7 +374,7 @@ function count_items($feed_id)
 // Get one feed
 function get($feed_id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('feeds')
         ->eq('id', $feed_id)
         ->findOne();
@@ -383,13 +383,13 @@ function get($feed_id)
 // Update parsing error column
 function update_parsing_error($feed_id, $value)
 {
-    Database::get('db')->table('feeds')->eq('id', $feed_id)->save(array('parsing_error' => $value));
+    Database::getInstance('db')->table('feeds')->eq('id', $feed_id)->save(array('parsing_error' => $value));
 }
 
 // Update last check date
 function update_last_checked($feed_id)
 {
-    Database::get('db')
+    Database::getInstance('db')
         ->table('feeds')
         ->eq('id', $feed_id)
         ->save(array(
@@ -400,7 +400,7 @@ function update_last_checked($feed_id)
 // Update Etag and last Modified columns
 function update_cache($feed_id, $last_modified, $etag)
 {
-    Database::get('db')
+    Database::getInstance('db')
         ->table('feeds')
         ->eq('id', $feed_id)
         ->save(array(
@@ -413,25 +413,25 @@ function update_cache($feed_id, $last_modified, $etag)
 function remove($feed_id)
 {
     // Items are removed by a sql constraint
-    return Database::get('db')->table('feeds')->eq('id', $feed_id)->remove();
+    return Database::getInstance('db')->table('feeds')->eq('id', $feed_id)->remove();
 }
 
 // Remove all feeds
 function remove_all()
 {
-    return Database::get('db')->table('feeds')->remove();
+    return Database::getInstance('db')->table('feeds')->remove();
 }
 
 // Enable a feed (activate refresh)
 function enable($feed_id)
 {
-    return Database::get('db')->table('feeds')->eq('id', $feed_id)->save((array('enabled' => 1)));
+    return Database::getInstance('db')->table('feeds')->eq('id', $feed_id)->save((array('enabled' => 1)));
 }
 
 // Disable feed
 function disable($feed_id)
 {
-    return Database::get('db')->table('feeds')->eq('id', $feed_id)->save((array('enabled' => 0)));
+    return Database::getInstance('db')->table('feeds')->eq('id', $feed_id)->save((array('enabled' => 0)));
 }
 
 // Validation for edit
diff --git a/models/group.php b/models/group.php
index dcdffcd..4fadd94 100644
--- a/models/group.php
+++ b/models/group.php
@@ -11,7 +11,7 @@ use PicoDb\Database;
  */
 function get_all()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
             ->table('groups')
             ->orderBy('title')
             ->findAll();
@@ -24,7 +24,7 @@ function get_all()
  */
 function get_map()
 {
-    $result = Database::get('db')
+    $result = Database::getInstance('db')
             ->table('feeds_groups')
             ->findAll();
 
@@ -55,7 +55,7 @@ function get_map()
  */
 function get_feed_group_ids($feed_id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
             ->table('groups')
             ->join('feeds_groups', 'group_id', 'id')
             ->eq('feed_id', $feed_id)
@@ -70,7 +70,7 @@ function get_feed_group_ids($feed_id)
  */
 function get_group_id($title)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
             ->table('groups')
             ->eq('title', $title)
             ->findOneColumn('id');
@@ -84,7 +84,7 @@ function get_group_id($title)
  */
 function get_feeds_by_group($group_id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
             ->table('feeds_groups')
             ->eq('group_id', $group_id)
             ->findAllByColumn('feed_id');
@@ -108,7 +108,7 @@ function create($title)
 
     // create group if missing
     if ($group_id === false) {
-       Database::get('db')
+       Database::getInstance('db')
                 ->table('groups')
                 ->insert($data);
 
@@ -130,7 +130,7 @@ function add($feed_id, $group_ids)
     foreach ($group_ids as $group_id){
         $data = array('feed_id' => $feed_id, 'group_id' => $group_id);
 
-        $result = Database::get('db')
+        $result = Database::getInstance('db')
                 ->table('feeds_groups')
                 ->insert($data);
 
@@ -151,7 +151,7 @@ function add($feed_id, $group_ids)
  */
 function remove($feed_id, $group_ids)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
             ->table('feeds_groups')
             ->eq('feed_id', $feed_id)
             ->in('group_id', $group_ids)
@@ -163,14 +163,14 @@ function remove($feed_id, $group_ids)
  */
 function purge_groups()
 {
-    $groups = Database::get('db')
+    $groups = Database::getInstance('db')
                 ->table('groups')
                 ->join('feeds_groups', 'group_id', 'id')
                 ->isnull('feed_id')
                 ->findAllByColumn('id');
 
     if (! empty($groups)) {
-        Database::get('db')
+        Database::getInstance('db')
             ->table('groups')
             ->in('id', $groups)
             ->remove();
diff --git a/models/item.php b/models/item.php
index ee31a61..5eabdb5 100644
--- a/models/item.php
+++ b/models/item.php
@@ -12,7 +12,7 @@ use PicoFeed\Scraper\Scraper;
 // Get all items without filtering
 function get_all()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->columns(
             'items.id',
@@ -39,7 +39,7 @@ function get_all()
 // Get everthing since date (timestamp)
 function get_all_since($timestamp)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->columns(
             'items.id',
@@ -66,7 +66,7 @@ function get_all_since($timestamp)
 
 function get_latest_feeds_items()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('feeds')
         ->columns(
             'feeds.id',
@@ -82,7 +82,7 @@ function get_latest_feeds_items()
 // Get a list of [item_id => status,...]
 function get_all_status()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->hashtable('items')
         ->in('status', array('read', 'unread'))
         ->orderBy('updated', 'desc')
@@ -90,9 +90,9 @@ function get_all_status()
 }
 
 // Get all items by status
-function get_all_by_status($status, $feed_ids = null, $offset = null, $limit = null, $order_column = 'updated', $order_direction = 'desc')
+function get_all_by_status($status, $feed_ids = array(), $offset = null, $limit = null, $order_column = 'updated', $order_direction = 'desc')
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->columns(
             'items.id',
@@ -120,9 +120,9 @@ function get_all_by_status($status, $feed_ids = null, $offset = null, $limit = n
 }
 
 // Get the number of items per status
-function count_by_status($status, $feed_ids = null)
+function count_by_status($status, $feed_ids = array())
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('status', $status)
         ->in('feed_id', $feed_ids)
@@ -132,7 +132,7 @@ function count_by_status($status, $feed_ids = null)
 // Get the number of bookmarks
 function count_bookmarks()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('bookmark', 1)
         ->in('status', array('read', 'unread'))
@@ -142,7 +142,7 @@ function count_bookmarks()
 // Get all bookmarks
 function get_bookmarks($offset = null, $limit = null)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->columns(
             'items.id',
@@ -172,7 +172,7 @@ function get_bookmarks($offset = null, $limit = null)
 // Get the number of items per feed
 function count_by_feed($feed_id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('feed_id', $feed_id)
         ->in('status', array('unread', 'read'))
@@ -182,7 +182,7 @@ function count_by_feed($feed_id)
 // Get all items per feed
 function get_all_by_feed($feed_id, $offset = null, $limit = null, $order_column = 'updated', $order_direction = 'desc')
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->columns(
             'items.id',
@@ -211,7 +211,7 @@ function get_all_by_feed($feed_id, $offset = null, $limit = null, $order_column
 // Get one item by id
 function get($id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('id', $id)
         ->findOne();
@@ -220,7 +220,7 @@ function get($id)
 // Get item naviguation (next/prev items)
 function get_nav($item, $status = array('unread'), $bookmark = array(1, 0), $feed_id = null)
 {
-    $query = Database::get('db')
+    $query = Database::getInstance('db')
         ->table('items')
         ->columns('id', 'status', 'title', 'bookmark')
         ->neq('status', 'removed')
@@ -280,7 +280,7 @@ function get_nav($item, $status = array('unread'), $bookmark = array(1, 0), $fee
 // Change item status to removed and clear content
 function set_removed($id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('id', $id)
         ->save(array('status' => 'removed', 'content' => ''));
@@ -289,7 +289,7 @@ function set_removed($id)
 // Change item status to read
 function set_read($id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('id', $id)
         ->save(array('status' => 'read'));
@@ -298,7 +298,7 @@ function set_read($id)
 // Change item status to unread
 function set_unread($id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('id', $id)
         ->save(array('status' => 'unread'));
@@ -309,7 +309,7 @@ function set_status($status, array $items)
 {
     if (! in_array($status, array('read', 'unread', 'removed'))) return false;
 
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->in('id', $items)
         ->save(array('status' => $status));
@@ -322,7 +322,7 @@ function set_bookmark_value($id, $value)
         Service\push($id);
     }
 
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('id', $id)
         ->in('status', array('read', 'unread'))
@@ -332,7 +332,7 @@ function set_bookmark_value($id, $value)
 // Mark all unread items as read
 function mark_all_as_read()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('status', 'unread')
         ->save(array('status' => 'read'));
@@ -341,7 +341,7 @@ function mark_all_as_read()
 // Mark all read items to removed
 function mark_all_as_removed()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('status', 'read')
         ->eq('bookmark', 0)
@@ -351,7 +351,7 @@ function mark_all_as_removed()
 // Mark all items of a feed as read
 function mark_feed_as_read($feed_id)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('status', 'unread')
         ->eq('feed_id', $feed_id)
@@ -364,7 +364,7 @@ function mark_group_as_read($group_id)
     // workaround for missing update with join
     $feed_ids = Group\get_feeds_by_group($group_id);
 
-    return Database::get('db')
+    return Database::getInstance('db')
         ->table('items')
         ->eq('status', 'unread')
         ->in('feed_id', $feed_ids)
@@ -379,7 +379,7 @@ function autoflush_read()
     if ($autoflush > 0) {
 
         // Mark read items removed after X days
-        Database::get('db')
+        Database::getInstance('db')
             ->table('items')
             ->eq('bookmark', 0)
             ->eq('status', 'read')
@@ -389,7 +389,7 @@ function autoflush_read()
     else if ($autoflush === -1) {
 
         // Mark read items removed immediately
-        Database::get('db')
+        Database::getInstance('db')
             ->table('items')
             ->eq('bookmark', 0)
             ->eq('status', 'read')
@@ -405,7 +405,7 @@ function autoflush_unread()
     if ($autoflush > 0) {
 
         // Mark read items removed after X days
-        Database::get('db')
+        Database::getInstance('db')
             ->table('items')
             ->eq('bookmark', 0)
             ->eq('status', 'unread')
@@ -421,7 +421,7 @@ function update_all($feed_id, array $items)
 
     $items_in_feed = array();
 
-    $db = Database::get('db');
+    $db = Database::getInstance('db');
     $db->startTransaction();
 
     foreach ($items as $item) {
@@ -490,7 +490,7 @@ function cleanup($feed_id, array $items_in_feed)
 {
     if (! empty($items_in_feed)) {
 
-        $db = Database::get('db');
+        $db = Database::getInstance('db');
 
         $removed_items = $db
             ->table('items')
@@ -558,7 +558,7 @@ function download_content_id($item_id)
         if (! Config\get('nocontent')) {
 
             // Save content
-            Database::get('db')
+            Database::getInstance('db')
                 ->table('items')
                 ->eq('id', $item['id'])
                 ->save(array('content' => $content));
diff --git a/models/remember_me.php b/models/remember_me.php
index d09a897..35d0c62 100644
--- a/models/remember_me.php
+++ b/models/remember_me.php
@@ -18,7 +18,7 @@ const EXPIRATION = 5184000;
  */
 function find($token, $sequence)
 {
-    return Database::get('db')
+    return Database::getInstance('db')
                 ->table(TABLE)
                 ->eq('token', $token)
                 ->eq('sequence', $sequence)
@@ -34,7 +34,7 @@ function find($token, $sequence)
  */
 function get_all()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
                 ->table(TABLE)
                 ->desc('date_creation')
                 ->columns('id', 'ip', 'user_agent', 'date_creation', 'expiration')
@@ -111,7 +111,7 @@ function destroy()
 
     if ($credentials !== false) {
 
-        Database::get('db')
+        Database::getInstance('db')
              ->table(TABLE)
              ->eq('token', $credentials['token'])
              ->remove();
@@ -138,7 +138,7 @@ function create($dbname, $username, $ip, $user_agent)
 
     cleanup();
 
-    Database::get('db')
+    Database::getInstance('db')
          ->table(TABLE)
          ->insert(array(
             'username' => $username,
@@ -165,7 +165,7 @@ function create($dbname, $username, $ip, $user_agent)
  */
 function cleanup()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
                 ->table(TABLE)
                 ->lt('expiration', time())
                 ->remove();
@@ -182,7 +182,7 @@ function update($token)
 {
     $new_sequence = Config\generate_token();
 
-    Database::get('db')
+    Database::getInstance('db')
          ->table(TABLE)
          ->eq('token', $token)
          ->update(array('sequence' => $new_sequence));
diff --git a/models/user.php b/models/user.php
index 21b44e9..8a24bf7 100644
--- a/models/user.php
+++ b/models/user.php
@@ -26,7 +26,7 @@ function logout()
 // Get the credentials from the current selected database
 function getCredentials()
 {
-    return Database::get('db')
+    return Database::getInstance('db')
         ->hashtable('settings')
         ->get('username', 'password');
 }
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
index b1ca374..8b8632e 100644
--- a/vendor/composer/autoload_classmap.php
+++ b/vendor/composer/autoload_classmap.php
@@ -6,16 +6,22 @@ $vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(
+    'JsonRPC\\AccessDeniedException' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/AccessDeniedException.php',
     'JsonRPC\\AuthenticationFailure' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Server.php',
     'JsonRPC\\Client' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Client.php',
+    'JsonRPC\\ConnectionFailureException' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Client.php',
     'JsonRPC\\InvalidJsonFormat' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Server.php',
     'JsonRPC\\InvalidJsonRpcFormat' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Server.php',
     'JsonRPC\\Server' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Server.php',
+    'JsonRPC\\ServerErrorException' => $vendorDir . '/fguillot/json-rpc/src/JsonRPC/Client.php',
+    'PicoDb\\Condition' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Condition.php',
     'PicoDb\\Database' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Database.php',
+    'PicoDb\\Driver\\Base' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Driver/Base.php',
     'PicoDb\\Driver\\Mysql' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Driver/Mysql.php',
     'PicoDb\\Driver\\Postgres' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Driver/Postgres.php',
     'PicoDb\\Driver\\Sqlite' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Driver/Sqlite.php',
     'PicoDb\\Hashtable' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Hashtable.php',
+    'PicoDb\\SQLException' => $vendorDir . '/fguillot/picodb/lib/PicoDb/SQLException.php',
     'PicoDb\\Schema' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Schema.php',
     'PicoDb\\Table' => $vendorDir . '/fguillot/picodb/lib/PicoDb/Table.php',
     'PicoFeed\\Client\\Client' => $vendorDir . '/fguillot/picofeed/lib/PicoFeed/Client/Client.php',
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
index df37fc7..a08af6c 100644
--- a/vendor/composer/installed.json
+++ b/vendor/composer/installed.json
@@ -76,84 +76,6 @@
         "description": "The most easy to use validator library for PHP :)",
         "homepage": "https://github.com/fguillot/simpleValidator"
     },
-    {
-        "name": "fguillot/json-rpc",
-        "version": "v0.0.3",
-        "version_normalized": "0.0.3.0",
-        "source": {
-            "type": "git",
-            "url": "https://github.com/fguillot/JsonRPC.git",
-            "reference": "ef2f1aa1c07f0e3e8878c53b3a5fc81daedbebb8"
-        },
-        "dist": {
-            "type": "zip",
-            "url": "https://api.github.com/repos/fguillot/JsonRPC/zipball/ef2f1aa1c07f0e3e8878c53b3a5fc81daedbebb8",
-            "reference": "ef2f1aa1c07f0e3e8878c53b3a5fc81daedbebb8",
-            "shasum": ""
-        },
-        "require": {
-            "php": ">=5.3.0"
-        },
-        "time": "2015-05-20 15:08:40",
-        "type": "library",
-        "installation-source": "dist",
-        "autoload": {
-            "psr-0": {
-                "JsonRPC": "src/"
-            }
-        },
-        "notification-url": "https://packagist.org/downloads/",
-        "license": [
-            "MIT"
-        ],
-        "authors": [
-            {
-                "name": "Frédéric Guillot",
-                "homepage": "http://fredericguillot.com"
-            }
-        ],
-        "description": "Simple Json-RPC client/server library that just works",
-        "homepage": "https://github.com/fguillot/JsonRPC"
-    },
-    {
-        "name": "fguillot/picodb",
-        "version": "v0.0.3",
-        "version_normalized": "0.0.3.0",
-        "source": {
-            "type": "git",
-            "url": "https://github.com/fguillot/picoDb.git",
-            "reference": "f65d11cb52de34e0fd236a34184ca1a310da244a"
-        },
-        "dist": {
-            "type": "zip",
-            "url": "https://api.github.com/repos/fguillot/picoDb/zipball/f65d11cb52de34e0fd236a34184ca1a310da244a",
-            "reference": "f65d11cb52de34e0fd236a34184ca1a310da244a",
-            "shasum": ""
-        },
-        "require": {
-            "php": ">=5.3.0"
-        },
-        "time": "2015-05-17 23:57:05",
-        "type": "library",
-        "installation-source": "dist",
-        "autoload": {
-            "psr-0": {
-                "PicoDb": "lib/"
-            }
-        },
-        "notification-url": "https://packagist.org/downloads/",
-        "license": [
-            "MIT"
-        ],
-        "authors": [
-            {
-                "name": "Frédéric Guillot",
-                "homepage": "http://fredericguillot.com"
-            }
-        ],
-        "description": "Minimalist database query builder",
-        "homepage": "https://github.com/fguillot/picoDb"
-    },
     {
         "name": "fguillot/picofeed",
         "version": "v0.1.8",
@@ -202,5 +124,82 @@
         ],
         "description": "Modern library to handle RSS/Atom feeds",
         "homepage": "https://github.com/fguillot/picoFeed"
+    },
+    {
+        "name": "fguillot/json-rpc",
+        "version": "v1.0.1",
+        "version_normalized": "1.0.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/fguillot/JsonRPC.git",
+            "reference": "9a117e964c4c6ad026da7ae1ca155f7686e3deaf"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/fguillot/JsonRPC/zipball/9a117e964c4c6ad026da7ae1ca155f7686e3deaf",
+            "reference": "9a117e964c4c6ad026da7ae1ca155f7686e3deaf",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.4"
+        },
+        "time": "2015-08-07 22:31:21",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "JsonRPC": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Frédéric Guillot"
+            }
+        ],
+        "description": "Simple Json-RPC client/server library that just works",
+        "homepage": "https://github.com/fguillot/JsonRPC"
+    },
+    {
+        "name": "fguillot/picodb",
+        "version": "v1.0.1",
+        "version_normalized": "1.0.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/fguillot/picoDb.git",
+            "reference": "8a311523d114180e04a1e08ced6766f26d7ebbae"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/fguillot/picoDb/zipball/8a311523d114180e04a1e08ced6766f26d7ebbae",
+            "reference": "8a311523d114180e04a1e08ced6766f26d7ebbae",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "time": "2015-08-13 01:44:29",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "PicoDb": "lib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Frédéric Guillot",
+                "homepage": "http://fredericguillot.com"
+            }
+        ],
+        "description": "Minimalist database query builder",
+        "homepage": "https://github.com/fguillot/picoDb"
     }
 ]
diff --git a/vendor/fguillot/json-rpc/.travis.yml b/vendor/fguillot/json-rpc/.travis.yml
new file mode 100644
index 0000000..00b2b5b
--- /dev/null
+++ b/vendor/fguillot/json-rpc/.travis.yml
@@ -0,0 +1,19 @@
+language: php
+
+php:
+  - 7.0
+  - 5.6
+  - 5.5
+  - 5.4
+  - 5.3
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - php: 7.0
+
+before_script:
+  - composer dump-autoload
+
+script:
+  - phpunit
\ No newline at end of file
diff --git a/vendor/fguillot/json-rpc/README.markdown b/vendor/fguillot/json-rpc/README.markdown
index a0793bf..3915b7e 100644
--- a/vendor/fguillot/json-rpc/README.markdown
+++ b/vendor/fguillot/json-rpc/README.markdown
@@ -3,6 +3,10 @@ JsonRPC PHP Client and Server
 
 A simple Json-RPC client/server that just works.
 
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/fguillot/JsonRPC/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/fguillot/JsonRPC/?branch=master)
+
+[![Build Status](https://travis-ci.org/fguillot/JsonRPC.svg?branch=master)](https://travis-ci.org/fguillot/JsonRPC)
+
 Features
 --------
 
@@ -11,24 +15,19 @@ Features
 - Authentication and IP based client restrictions
 - Minimalist: there is only 2 files
 - Fully unit tested
+- Requirements: PHP >= 5.3.4
 - License: MIT
 
-Requirements
-------------
-
-- The only dependency is the cURL extension
-- PHP >= 5.3
-
 Author
 ------
 
-[Frédéric Guillot](http://fredericguillot.com)
+Frédéric Guillot
 
 Installation with Composer
 --------------------------
 
 ```bash
-composer require fguillot/json-rpc dev-master
+composer require fguillot/json-rpc @stable
 ```
 
 Examples
@@ -214,7 +213,10 @@ All results are stored at the same position of the call.
 
 - `BadFunctionCallException`: Procedure not found on the server
 - `InvalidArgumentException`: Wrong procedure arguments
-- `RuntimeException`: Protocol error, authentication failure or connection failure, the message describe the exact error
+- `JsonRPC\AccessDeniedException`: Access denied
+- `JsonRPC\ConnectionFailureException`: Connection failure
+- `JsonRPC\ServerErrorException`: Internal server error
+- `RuntimeException`: Protocol error
 
 ### Enable client debugging
 
diff --git a/vendor/fguillot/json-rpc/composer.json b/vendor/fguillot/json-rpc/composer.json
index 3dc805c..41c5427 100644
--- a/vendor/fguillot/json-rpc/composer.json
+++ b/vendor/fguillot/json-rpc/composer.json
@@ -6,12 +6,11 @@
     "license": "MIT",
     "authors": [
         {
-            "name": "Frédéric Guillot",
-            "homepage": "http://fredericguillot.com"
+            "name": "Frédéric Guillot"
         }
     ],
     "require": {
-        "php": ">=5.3.0"
+        "php": ">=5.3.4"
     },
     "autoload": {
         "psr-0": {"JsonRPC": "src/"}
diff --git a/vendor/fguillot/json-rpc/phpunit.xml b/vendor/fguillot/json-rpc/phpunit.xml
index dc36b5e..1eee422 100644
--- a/vendor/fguillot/json-rpc/phpunit.xml
+++ b/vendor/fguillot/json-rpc/phpunit.xml
@@ -1,4 +1,4 @@
-<phpunit bootstrap="./vendor/autoload.php">
+<phpunit bootstrap="./vendor/autoload.php" stopOnError="true" stopOnFailure="true" colors="true">
     <testsuites>
         <testsuite name="JsonRPC">
             <directory>tests</directory>
diff --git a/vendor/fguillot/json-rpc/src/JsonRPC/AccessDeniedException.php b/vendor/fguillot/json-rpc/src/JsonRPC/AccessDeniedException.php
new file mode 100644
index 0000000..ad92746
--- /dev/null
+++ b/vendor/fguillot/json-rpc/src/JsonRPC/AccessDeniedException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace JsonRPC;
+
+class AccessDeniedException extends \Exception
+{
+}
diff --git a/vendor/fguillot/json-rpc/src/JsonRPC/Client.php b/vendor/fguillot/json-rpc/src/JsonRPC/Client.php
index e0c65f1..65afba7 100644
--- a/vendor/fguillot/json-rpc/src/JsonRPC/Client.php
+++ b/vendor/fguillot/json-rpc/src/JsonRPC/Client.php
@@ -2,16 +2,19 @@
 
 namespace JsonRPC;
 
+use Exception;
 use RuntimeException;
 use BadFunctionCallException;
 use InvalidArgumentException;
 
+class ConnectionFailureException extends Exception {};
+class ServerErrorException extends Exception {};
+
 /**
  * JsonRPC client class
  *
  * @package JsonRPC
- * @author Frederic Guillot
- * @license Unlicense http://unlicense.org/
+ * @author  Frederic Guillot
  */
 class Client
 {
@@ -87,47 +90,33 @@ class Client
      * @var array
      */
     private $headers = array(
+        'User-Agent: JSON-RPC PHP Client <https://github.com/fguillot/JsonRPC>',
         'Content-Type: application/json',
-        'Accept: application/json'
+        'Accept: application/json',
+        'Connection: close',
     );
+
     /**
      * SSL certificates verification
+     *
      * @access public
      * @var boolean
      */
     public $ssl_verify_peer = true;
 
-    /**
-     * cURL handle
-     *
-     * @access private
-     */
-    private $ch;
-
     /**
      * Constructor
      *
      * @access public
      * @param  string    $url         Server URL
-     * @param  integer   $timeout     Server URL
+     * @param  integer   $timeout     HTTP timeout
      * @param  array     $headers     Custom HTTP headers
      */
-    public function __construct($url, $timeout = 5, $headers = array())
+    public function __construct($url, $timeout = 3, $headers = array())
     {
         $this->url = $url;
         $this->timeout = $timeout;
         $this->headers = array_merge($this->headers, $headers);
-        $this->ch = curl_init();
-    }
-
-    /**
-     * Destructor
-     *
-     * @access public
-     */
-    public function __destruct()
-    {
-        curl_close($this->ch);
     }
 
     /**
@@ -154,11 +143,14 @@ class Client
      * @access public
      * @param  string   $username   Username
      * @param  string   $password   Password
+     * @return Client
      */
     public function authentication($username, $password)
     {
         $this->username = $username;
         $this->password = $password;
+
+        return $this;
     }
 
     /**
@@ -243,7 +235,6 @@ class Client
     public function parseResponse(array $payload)
     {
         if ($this->isBatchResponse($payload)) {
-
             $results = array();
 
             foreach ($payload as $response) {
@@ -256,6 +247,113 @@ class Client
         return $this->getResult($payload);
     }
 
+    /**
+     * Throw an exception according the RPC error
+     *
+     * @access public
+     * @param  array   $error
+     * @throws BadFunctionCallException
+     * @throws InvalidArgumentException
+     * @throws RuntimeException
+     */
+    public function handleRpcErrors(array $error)
+    {
+        switch ($error['code']) {
+            case -32601:
+                throw new BadFunctionCallException('Procedure not found: '. $error['message']);
+            case -32602:
+                throw new InvalidArgumentException('Invalid arguments: '. $error['message']);
+            default:
+                throw new RuntimeException('Invalid request/response: '. $error['message'], $error['code']);
+        }
+    }
+
+    /**
+     * Throw an exception according the HTTP response
+     *
+     * @access public
+     * @param  array   $headers
+     * @throws AccessDeniedException
+     * @throws ServerErrorException
+     */
+    public function handleHttpErrors(array $headers)
+    {
+        $exceptions = array(
+            '401' => 'JsonRPC\AccessDeniedException',
+            '403' => 'JsonRPC\AccessDeniedException',
+            '404' => 'JsonRPC\ConnectionFailureException',
+            '500' => 'JsonRPC\ServerErrorException',
+        );
+
+        foreach ($headers as $header) {
+            foreach ($exceptions as $code => $exception) {
+                if (strpos($header, 'HTTP/1.0 '.$code) !== false || strpos($header, 'HTTP/1.1 '.$code) !== false) {
+                    throw new $exception('Response: '.$header);
+                }
+            }
+        }
+    }
+
+    /**
+     * Do the HTTP request
+     *
+     * @access private
+     * @param  array   $payload
+     * @return array
+     */
+    private function doRequest(array $payload)
+    {
+        $stream = @fopen(trim($this->url), 'r', false, $this->getContext($payload));
+
+        if (! is_resource($stream)) {
+            throw new ConnectionFailureException('Unable to establish a connection');
+        }
+
+        $metadata = stream_get_meta_data($stream);
+        $this->handleHttpErrors($metadata['wrapper_data']);
+
+        $response = json_decode(stream_get_contents($stream), true);
+
+        if ($this->debug) {
+            error_log('==> Request: '.PHP_EOL.json_encode($payload, JSON_PRETTY_PRINT));
+            error_log('==> Response: '.PHP_EOL.json_encode($response, JSON_PRETTY_PRINT));
+        }
+
+        return is_array($response) ? $response : array();
+    }
+
+    /**
+     * Prepare stream context
+     *
+     * @access private
+     * @param  array   $payload
+     * @return resource
+     */
+    private function getContext(array $payload)
+    {
+        $headers = $this->headers;
+
+        if (! empty($this->username) && ! empty($this->password)) {
+            $headers[] = 'Authorization: Basic '.base64_encode($this->username.':'.$this->password);
+        }
+
+        return stream_context_create(array(
+            'http' => array(
+                'method' => 'POST',
+                'protocol_version' => 1.1,
+                'timeout' => $this->timeout,
+                'max_redirects' => 2,
+                'header' => implode("\r\n", $headers),
+                'content' => json_encode($payload),
+                'ignore_errors' => true,
+            ),
+            "ssl" => array(
+                "verify_peer" => $this->ssl_verify_peer,
+                "verify_peer_name" => $this->ssl_verify_peer,
+            )
+        ));
+    }
+
     /**
      * Return true if we have a batch response
      *
@@ -271,11 +369,11 @@ class Client
     /**
      * Get a RPC call result
      *
-     * @access public
+     * @access private
      * @param  array    $payload
      * @return mixed
      */
-    public function getResult(array $payload)
+    private function getResult(array $payload)
     {
         if (isset($payload['error']['code'])) {
             $this->handleRpcErrors($payload['error']);
@@ -283,68 +381,4 @@ class Client
 
         return isset($payload['result']) ? $payload['result'] : null;
     }
-
-    /**
-     * Throw an exception according the RPC error
-     *
-     * @access public
-     * @param  integer    $code
-     */
-    public function handleRpcErrors($error)
-    {
-        switch ($error['code']) {
-            case -32601:
-                throw new BadFunctionCallException('Procedure not found: '. $error['message']);
-            case -32602:
-                throw new InvalidArgumentException('Invalid arguments: '. $error['message']);
-            default:
-                throw new RuntimeException('Invalid request/response: '. $error['message'], $error['code']);
-        }
-    }
-
-    /**
-     * Do the HTTP request
-     *
-     * @access public
-     * @param  string   $payload   Data to send
-     */
-    public function doRequest($payload)
-    {
-        curl_setopt_array($this->ch, array(
-            CURLOPT_URL => $this->url,
-            CURLOPT_HEADER => false,
-            CURLOPT_RETURNTRANSFER => true,
-            CURLOPT_CONNECTTIMEOUT => $this->timeout,
-            CURLOPT_USERAGENT => 'JSON-RPC PHP Client',
-            CURLOPT_HTTPHEADER => $this->headers,
-            CURLOPT_FOLLOWLOCATION => false,
-            CURLOPT_CUSTOMREQUEST => 'POST',
-            CURLOPT_SSL_VERIFYPEER => $this->ssl_verify_peer,
-            CURLOPT_POSTFIELDS => json_encode($payload)
-        ));
-
-        if ($this->username && $this->password) {
-            curl_setopt($this->ch, CURLOPT_USERPWD, $this->username.':'.$this->password);
-        }
-
-        $http_body = curl_exec($this->ch);
-        $http_code = curl_getinfo($this->ch, CURLINFO_HTTP_CODE);
-
-        if (curl_errno($this->ch)) {
-            throw new RuntimeException(curl_error($this->ch));
-        }
-
-        if ($http_code === 401 || $http_code === 403) {
-            throw new RuntimeException('Access denied');
-        }
-
-        $response = json_decode($http_body, true);
-
-        if ($this->debug) {
-            error_log('==> Request: '.PHP_EOL.json_encode($payload, JSON_PRETTY_PRINT));
-            error_log('==> Response: '.PHP_EOL.json_encode($response, JSON_PRETTY_PRINT));
-        }
-
-        return is_array($response) ? $response : array();
-    }
 }
diff --git a/vendor/fguillot/json-rpc/src/JsonRPC/Server.php b/vendor/fguillot/json-rpc/src/JsonRPC/Server.php
index d0dba62..20d758b 100644
--- a/vendor/fguillot/json-rpc/src/JsonRPC/Server.php
+++ b/vendor/fguillot/json-rpc/src/JsonRPC/Server.php
@@ -19,7 +19,6 @@ class AuthenticationFailure extends Exception {};
  *
  * @package JsonRPC
  * @author  Frederic Guillot
- * @license Unlicense http://unlicense.org/
  */
 class Server
 {
@@ -27,9 +26,9 @@ class Server
      * Data received from the client
      *
      * @access private
-     * @var string
+     * @var array
      */
-    private $payload;
+    private $payload = array();
 
     /**
      * List of procedures
@@ -91,17 +90,28 @@ class Server
      * Constructor
      *
      * @access public
-     * @param  string   $payload      Client data
-     * @param  array    $callbacks    Callbacks
-     * @param  array    $classes      Classes
+     * @param  string    $request
      */
-    public function __construct($payload = '', array $callbacks = array(), array $classes = array())
+    public function __construct($request = '')
+    {
+        if ($request !== '') {
+            $this->payload = json_decode($request, true);
+        }
+        else {
+            $this->payload = json_decode(file_get_contents('php://input'), true);
+        }
+    }
+
+    /**
+     * Set a payload
+     *
+     * @access public
+     * @param  array   $payload
+     * @return Server
+     */
+    public function setPayload(array $payload)
     {
         $this->payload = $payload;
-        $this->callbacks = $callbacks;
-        $this->classes = $classes;
-
-
     }
 
     /**
@@ -215,9 +225,9 @@ class Server
      * @param  closure  $callback        Callback
      * @return Server
      */
-    public function register($name, Closure $callback)
+    public function register($procedure, Closure $callback)
     {
-        $this->callbacks[$name] = $callback;
+        $this->callbacks[$procedure] = $callback;
         return $this;
     }
 
@@ -308,18 +318,10 @@ class Server
     /**
      * Parse the payload and test if the parsed JSON is ok
      *
-     * @access public
+     * @access private
      */
-    public function checkJsonFormat()
+    private function checkJsonFormat()
     {
-        if (empty($this->payload)) {
-            $this->payload = file_get_contents('php://input');
-        }
-
-        if (is_string($this->payload)) {
-            $this->payload = json_decode($this->payload, true);
-        }
-
         if (! is_array($this->payload)) {
             throw new InvalidJsonFormat('Malformed payload');
         }
@@ -328,9 +330,9 @@ class Server
     /**
      * Test if all required JSON-RPC parameters are here
      *
-     * @access public
+     * @access private
      */
-    public function checkRpcFormat()
+    private function checkRpcFormat()
     {
         if (! isset($this->payload['jsonrpc']) ||
             ! isset($this->payload['method']) ||
@@ -377,10 +379,11 @@ class Server
             }
             else {
 
-                $server = new Server($payload, $this->callbacks, $this->classes);
+                $server = clone($this);
+                $server->setPayload($payload);
                 $response = $server->execute();
 
-                if ($response) {
+                if (! empty($response)) {
                     $responses[] = $response;
                 }
             }
@@ -457,6 +460,9 @@ class Server
         catch (AuthenticationFailure $e) {
             $this->sendAuthenticationFailureResponse();
         }
+        catch (AccessDeniedException $e) {
+            $this->sendForbiddenResponse();
+        }
         catch (Exception $e) {
 
             foreach ($this->exceptions as $class) {
@@ -537,8 +543,13 @@ class Server
         $instance = is_string($class) ? new $class : $class;
 
         // Execute before action
-        if (! empty($this->before) && method_exists($instance, $this->before)) {
-            $instance->{$this->before}($this->getUsername(), $this->getPassword(), get_class($class), $method);
+        if (! empty($this->before)) {
+            if (is_callable($this->before)) {
+                call_user_func_array($this->before, array($this->getUsername(), $this->getPassword(), get_class($class), $method));
+            }
+            else if (method_exists($instance, $this->before)) {
+                $instance->{$this->before}($this->getUsername(), $this->getPassword(), get_class($class), $method);
+            }
         }
 
         $reflection = new ReflectionMethod($class, $method);
diff --git a/vendor/fguillot/json-rpc/tests/ClientTest.php b/vendor/fguillot/json-rpc/tests/ClientTest.php
index c592066..a6ad5f6 100644
--- a/vendor/fguillot/json-rpc/tests/ClientTest.php
+++ b/vendor/fguillot/json-rpc/tests/ClientTest.php
@@ -55,6 +55,51 @@ class ClientTest extends PHPUnit_Framework_TestCase
         $client->parseResponse(json_decode('{"jsonrpc": "2.0", "error": {"code": -32700, "message": "Parse error"}, "id": null}', true));
     }
 
+    /**
+     * @expectedException JsonRPC\ServerErrorException
+     */
+    public function testServerError()
+    {
+        $client = new Client('http://localhost/');
+        $client->handleHttpErrors(array('HTTP/1.0 301 Moved Permantenly', 'Connection: close', 'HTTP/1.1 500 Internal Server Error'));
+    }
+
+    /**
+     * @expectedException JsonRPC\ConnectionFailureException
+     */
+    public function testBadUrl()
+    {
+        $client = new Client('http://something_not_found/', 1);
+        $client->execute('plop');
+    }
+
+    /**
+     * @expectedException JsonRPC\ConnectionFailureException
+     */
+    public function test404()
+    {
+        $client = new Client('http://localhost/');
+        $client->handleHttpErrors(array('HTTP/1.1 404 Not Found'));
+    }
+
+    /**
+     * @expectedException JsonRPC\AccessDeniedException
+     */
+    public function testAccessForbiddenError()
+    {
+        $client = new Client('http://localhost/');
+        $client->handleHttpErrors(array('HTTP/1.0 301 Moved Permantenly', 'Connection: close', 'HTTP/1.1 403 Forbidden'));
+    }
+
+    /**
+     * @expectedException JsonRPC\AccessDeniedException
+     */
+    public function testAccessNotAllowedError()
+    {
+        $client = new Client('http://localhost/');
+        $client->handleHttpErrors(array('HTTP/1.0 301 Moved Permantenly', 'Connection: close', 'HTTP/1.0 401 Unauthorized'));
+    }
+
     public function testPrepareRequest()
     {
         $client = new Client('http://localhost/');
diff --git a/vendor/fguillot/json-rpc/tests/ServerProtocolTest.php b/vendor/fguillot/json-rpc/tests/ServerProtocolTest.php
index f3586ea..4f55dca 100644
--- a/vendor/fguillot/json-rpc/tests/ServerProtocolTest.php
+++ b/vendor/fguillot/json-rpc/tests/ServerProtocolTest.php
@@ -2,6 +2,14 @@
 
 use JsonRPC\Server;
 
+class C
+{
+    public function doSomething()
+    {
+        return 'something';
+    }
+}
+
 class ServerProtocolTest extends PHPUnit_Framework_TestCase
 {
     public function testPositionalParameters()
@@ -165,7 +173,9 @@ class ServerProtocolTest extends PHPUnit_Framework_TestCase
             {"jsonrpc": "2.0", "method": "subtract", "params": [42,23], "id": "2"},
             {"foo": "boo"},
             {"jsonrpc": "2.0", "method": "foo.get", "params": {"name": "myself"}, "id": "5"},
-            {"jsonrpc": "2.0", "method": "get_data", "id": "9"}
+            {"jsonrpc": "2.0", "method": "get_data", "id": "9"},
+            {"jsonrpc": "2.0", "method": "doSomething", "id": 10},
+            {"jsonrpc": "2.0", "method": "doStuff", "id": 15}
         ]');
 
         $server->register('sum', function($a, $b, $c) {
@@ -180,6 +190,10 @@ class ServerProtocolTest extends PHPUnit_Framework_TestCase
             return array('hello', 5);
         });
 
+        $server->attach(new C);
+
+        $server->bind('doStuff', 'C', 'doSomething');
+
         $response = $server->execute();
 
         $this->assertEquals(
@@ -188,7 +202,9 @@ class ServerProtocolTest extends PHPUnit_Framework_TestCase
                 {"jsonrpc": "2.0", "result": 19, "id": "2"},
                 {"jsonrpc": "2.0", "error": {"code": -32600, "message": "Invalid Request"}, "id": null},
                 {"jsonrpc": "2.0", "error": {"code": -32601, "message": "Method not found"}, "id": "5"},
-                {"jsonrpc": "2.0", "result": ["hello", 5], "id": "9"}
+                {"jsonrpc": "2.0", "result": ["hello", 5], "id": "9"},
+                {"jsonrpc": "2.0", "result": "something", "id": "10"},
+                {"jsonrpc": "2.0", "result": "something", "id": "15"}
             ]', true),
             json_decode($response, true)
         );
diff --git a/vendor/fguillot/picodb/.travis.yml b/vendor/fguillot/picodb/.travis.yml
new file mode 100644
index 0000000..00b2b5b
--- /dev/null
+++ b/vendor/fguillot/picodb/.travis.yml
@@ -0,0 +1,19 @@
+language: php
+
+php:
+  - 7.0
+  - 5.6
+  - 5.5
+  - 5.4
+  - 5.3
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - php: 7.0
+
+before_script:
+  - composer dump-autoload
+
+script:
+  - phpunit
\ No newline at end of file
diff --git a/vendor/fguillot/picodb/README.md b/vendor/fguillot/picodb/README.md
index 69700e4..823d5c3 100644
--- a/vendor/fguillot/picodb/README.md
+++ b/vendor/fguillot/picodb/README.md
@@ -2,7 +2,10 @@ PicoDb
 ======
 
 PicoDb is a minimalist database query builder for PHP.
-**It's not an ORM**.
+
+[![Build Status](https://travis-ci.org/fguillot/picoDb.svg?branch=master)](https://travis-ci.org/fguillot/picoDb)
+
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/fguillot/picoDb/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/fguillot/picoDb/?branch=master)
 
 Features
 --------
@@ -11,15 +14,21 @@ Features
 - Supported drivers: Sqlite, Mysql, Postgresql
 - Requires only PDO
 - Use prepared statements
-- Handle schema versions (migrations)
+- Handle schema migrations
+- Fully unit tested on PHP 5.3, 5.4, 5.5, 5.6 and 7.0
 - License: MIT
 
 Requirements
 ------------
 
 - PHP >= 5.3
-- PDO
-- A database: Sqlite, Mysql or Postgresql
+- PDO extension
+- Sqlite or Mysql or Postgresql
+
+Author
+------
+
+Frédéric Guillot
 
 Documentation
 -------------
@@ -30,53 +39,93 @@ Documentation
 composer require fguillot/picodb @stable
 ```
 
-### Connect to your database
+### Database connection
+
+Sqlite:
 
 ```php
 use PicoDb\Database;
 
 // Sqlite driver
 $db = new Database(['driver' => 'sqlite', 'filename' => ':memory:']);
+```
 
-// Mysql driver
-// Optional options: "schema_table" (the default table name is "schema_version")
-$db = new Database(array(
+The Sqlite driver enable foreign keys by default.
+
+Mysql:
+
+```php
+// Optional attributes:
+// "charset"
+// "schema_table" (the default table name is "schema_version")
+// "port"
+
+$db = new Database([
     'driver' => 'mysql',
     'hostname' => 'localhost',
     'username' => 'root',
     'password' => '',
     'database' => 'my_db_name',
-    'charset' => 'utf8',
-));
+]);
 ```
 
-### Execute a SQL request
+Postgres:
 
 ```php
-$db->execute('CREATE TABLE toto (column1 TEXT)');
+// Optional attributes:
+// "schema_table" (the default table name is "schema_version")
+// "port"
+
+$db = new Database([
+    'driver' => 'postgres',
+    'hostname' => 'localhost',
+    'username' => 'root',
+    'password' => '',
+    'database' => 'my_db_name',
+]);
 ```
 
-### Insert some data
+### Execute any SQL query
 
 ```php
-$db->table('toto')->save(['column1' => 'test']);
+$db->execute('CREATE TABLE mytable (column1 TEXT)');
+```
+
+- Returns a `PDOStatement` if successful
+- Returns `false` if there is a duplicate key error
+- Throws a `SQLException` for other errors
+
+### Insertion
+
+```php
+$db->table('mytable')->save(['column1' => 'test']);
 ```
 
 or
 
 ```php
-$db->table('toto')->insert(['column1' => 'test']);
+$db->table('mytable')->insert(['column1' => 'test']);
+```
+
+### Fetch last inserted id
+
+```php
+$db->getLastId();
 ```
 
 ### Transactions
 
 ```php
 $db->transaction(function ($db) {
-    $db->table('toto')->save(['column1' => 'foo']);
-    $db->table('toto')->save(['column1' => 'bar']);
+    $db->table('mytable')->save(['column1' => 'foo']);
+    $db->table('mytable')->save(['column1' => 'bar']);
 });
 ```
 
+- Returns `true` if the callback returns null
+- Returns the callback return value otherwise
+- Throws an SQLException if something is wrong
+
 or
 
 ```php
@@ -91,55 +140,65 @@ $db->cancelTransaction();
 ### Fetch all data
 
 ```php
-$records = $db->table('toto')->findAll();
+$records = $db->table('mytable')->findAll();
 
 foreach ($records as $record) {
     var_dump($record['column1']);
 }
 ```
 
-### Update something
+### Updates
 
 ```php
-$db->table('toto')->eq('id', 1)->save(['column1' => 'hey']);
+$db->table('mytable')->eq('id', 1)->save(['column1' => 'hey']);
 ```
 
-You just need to add a condition to perform an update.
-
-### Remove rows
+or
 
 ```php
-$db->table('toto')->lowerThan('column1', 10)->remove();
+$db->table('mytable')->eq('id', 1)->update(['column1' => 'hey']);
+```
+
+### Remove records
+
+```php
+$db->table('mytable')->lt('column1', 10)->remove();
 ```
 
 ### Sorting
 
 ```php
-$db->table('toto')->asc('column1')->findAll();
+$db->table('mytable')->asc('column1')->findAll();
 ```
 
 or
 
 ```php
-$db->table('toto')->desc('column1')->findAll();
+$db->table('mytable')->desc('column1')->findAll();
 ```
 
 or
 
 ```php
-#db->table('toto')->orderBy('column1', 'ASC')->findAll();
+$db->table('mytable')->orderBy('column1', 'ASC')->findAll();
+```
+
+Multiple sorting:
+
+```php
+$db->table('mytable')->asc('column1')->desc('column2')->findAll();
 ```
 
 ### Limit and offset
 
 ```php
-$db->table('toto')->limit(10)->offset(5)->findAll();
+$db->table('mytable')->limit(10)->offset(5)->findAll();
 ```
 
 ### Fetch only some columns
 
 ```php
-$db->table('toto')->columns('column1', 'column2')->findAll();
+$db->table('mytable')->columns('column1', 'column2')->findAll();
 ```
 
 ### Fetch only one column
@@ -147,37 +206,87 @@ $db->table('toto')->columns('column1', 'column2')->findAll();
 Many rows:
 
 ```php
-$db->table('toto')->findAllByColumn('column1');
+$db->table('mytable')->findAllByColumn('column1');
 ```
 
 One row:
 
 ```php
-$db->table('toto')->findOneColumn('column1');
+$db->table('mytable')->findOneColumn('column1');
 ```
 
-### Equals condition
+### Custom select
 
 ```php
-$db->table('toto')
-   ->equals('column1', 'hey')
-   ->findAll();
+$db->table('mytable')->select(1)->eq('id', 42)->findOne();
+```
+
+### Distinct
+
+```php
+$db->table('mytable')->distinct('columnA')->findOne();
+```
+
+### Group by
+
+```php
+$db->table('mytable')->groupBy('columnA')->findAll();
+```
+
+### Count
+
+```php
+$db->table('mytable')->count();
+```
+
+### Sum
+
+```php
+$db->table('mytable')->sum('columnB');
+```
+
+### Sum column values during update
+
+Add the value 42 to the existing value of the column "mycolumn":
+
+```php
+$db->table('mytable')->sumColumn('mycolumn', 42)->update();
+```
+
+### Exists
+
+Returns true if a record exists otherwise false.
+
+```php
+$db->table('mytable')->eq('column1', 12)->exists();
+```
+
+### Left joins
+
+```php
+// SELECT * FROM mytable LEFT JOIN my_other_table AS t1 ON t1.id=mytable.foreign_key
+$db->table('mytable')->left('my_other_table', 't1', 'id', 'mytable', 'foreign_key')->findAll();
 ```
 
 or
 
 ```php
-$db->table('toto')
+// SELECT * FROM mytable LEFT JOIN my_other_table ON my_other_table.id=mytable.foreign_key
+$db->table('mytable')->join('my_other_table', 'id', 'foreign_key')->findAll();
+```
+
+### Equals condition
+
+```php
+$db->table('mytable')
    ->eq('column1', 'hey')
    ->findAll();
 ```
 
-Yout got: 'SELECT * FROM toto WHERE column1=?'
-
 ### IN condition
 
 ```php
-$db->table('toto')
+$db->table('mytable')
        ->in('column1', ['hey', 'bla'])
        ->findAll();
 ```
@@ -187,7 +296,7 @@ $db->table('toto')
 Case-sensitive (only Mysql and Postgres):
 
 ```php
-$db->table('toto')
+$db->table('mytable')
    ->like('column1', '%Foo%')
    ->findAll();
 ```
@@ -195,82 +304,66 @@ $db->table('toto')
 Not case-sensitive:
 
 ```php
-$db->table('toto')
+$db->table('mytable')
    ->ilike('column1', '%foo%')
    ->findAll();
 ```
 
-### Lower than
+### Lower than condition
 
 ```php
-$db->table('toto')
-   ->lowerThan('column1', 2)
-   ->findAll();
-```
-
-or
-
-```php
-$db->table('toto')
+$db->table('mytable')
    ->lt('column1', 2)
    ->findAll();
 ```
 
-### Lower than or equals
+### Lower than or equal condition
 
 ```php
-$db->table('toto')
-   ->lowerThanOrEquals('column1', 2)
-   ->findAll();
-```
-
-or
-
-```php
-$db->table('toto')
+$db->table('mytable')
    ->lte('column1', 2)
    ->findAll();
 ```
 
-### Greater than
+### Greater than condition
 
 ```php
-$db->table('toto')
-   ->greaterThan('column1', 3)
-   ->findAll();
-```
-
-or
-
-```php
-$db->table('toto')
+$db->table('mytable')
    ->gt('column1', 3)
    ->findAll();
 ```
 
-### Greater than or equals
+### Greater than or equal condition
 
 ```php
-$db->table('toto')
-   ->greaterThanOrEquals('column1', 3)
-   ->findAll();
-```
-
-or
-
-```php
-$db->table('toto')
+$db->table('mytable')
     ->gte('column1', 3)
     ->findAll();
 ```
 
-### Multiple conditions
-
-Each condition is joined by a AND.
+### IS NULL condition
 
 ```php
-$db->table('toto')
-    ->like('column2', '%toto')
+$db->table('mytable')
+   ->isNull('column1')
+   ->findAll();
+```
+
+### IS NOT NULL condition
+
+```php
+$db->table('mytable')
+   ->notNull('column1')
+   ->findAll();
+```
+
+### Multiple conditions
+
+Add conditions are joined by a `AND`.
+
+```php
+$db->table('mytable')
+    ->like('column2', '%mytable')
     ->gte('column1', 3)
     ->findAll();
 ```
@@ -278,9 +371,9 @@ $db->table('toto')
 How to make a OR condition:
 
 ```php
-$db->table('toto')
+$db->table('mytable')
     ->beginOr()
-    ->like('column2', '%toto')
+    ->like('column2', '%mytable')
     ->gte('column1', 3)
     ->closeOr()
     ->eq('column5', 'titi')
@@ -292,7 +385,7 @@ $db->table('toto')
 Log generated queries:
 
 ```php
-$db->log_queries = true;
+$db->logQueries = true;
 ```
 
 Mesure each query time:
@@ -304,7 +397,7 @@ $db->stopwatch = true;
 Get the number of queries executed:
 
 ```php
-echo $db->nb_queries;
+echo $db->nbQueries;
 ```
 
 Get log messages:
@@ -319,19 +412,19 @@ How to use a table as a key/value store:
 
 ```php
 $db->execute(
-     'CREATE TABLE toto (
+     'CREATE TABLE mytable (
          column1 TEXT NOT NULL UNIQUE,
          column2 TEXT default NULL
      )'
 );
 
-$db->table('toto')->insert(['column1' => 'option1', 'column2' => 'value1']);
+$db->table('mytable')->insert(['column1' => 'option1', 'column2' => 'value1']);
 ```
 
 Add/Replace some values:
 
 ```php
-$db->hashtable('toto')
+$db->hashtable('mytable')
    ->columnKey('column1')
    ->columnValue('column2')
    ->put(['option1' => 'new value', 'option2' => 'value2']));
@@ -340,7 +433,7 @@ $db->hashtable('toto')
 Get all values:
 
 ```php
-$result = $db->hashtable('toto')->columnKey('column1')->columnValue('column2')->get();
+$result = $db->hashtable('mytable')->columnKey('column1')->columnValue('column2')->get();
 print_r($result);
 
 Array
@@ -353,18 +446,18 @@ Array
 or
 
 ```php
-$result = $db->hashtable('toto')->getAll('column1', 'column2');
+$result = $db->hashtable('mytable')->getAll('column1', 'column2');
 ```
 
 Get a specific value:
 
 ```php
-$db->hashtable('toto')
+$db->hashtable('mytable')
    ->columnKey('column1')
    ->columnValue('column2')
    ->put(['option3' => 'value3']);
 
-$result = $db->hashtable('toto')
+$result = $db->hashtable('mytable')
              ->columnKey('column1')
              ->columnValue('column2')
              ->get('option1', 'option3');
@@ -417,10 +510,9 @@ function version_2($pdo)
 
 #### Run schema update automatically
 
-- The method "check()" executes all migrations until to reach the correct version number.
-- If we are already on the last version nothing will happen.
-- The schema version for the driver Sqlite is stored inside a variable (PRAGMA user_version)
-- You can use that with a dependency injection controller.
+- The method `check()` execute all migrations until the version specified
+- If an error occurs, the transaction is rollbacked
+- Foreign keys checks are disabled if possible during the migration
 
 Example:
 
@@ -447,7 +539,7 @@ else {
 Setup a new instance:
 
 ```php
-PicoDb\Database::bootstrap('myinstance', function() {
+PicoDb\Database::setInstance('myinstance', function() {
 
     $db = new PicoDb\Database(array(
         'driver' => 'sqlite',
@@ -466,5 +558,5 @@ PicoDb\Database::bootstrap('myinstance', function() {
 Get this instance anywhere in your code:
 
 ```php
-PicoDb\Database::get('myinstance')->table(...)
+PicoDb\Database::getInstance('myinstance')->table(...)
 ```
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Condition.php b/vendor/fguillot/picodb/lib/PicoDb/Condition.php
new file mode 100644
index 0000000..b8c6de4
--- /dev/null
+++ b/vendor/fguillot/picodb/lib/PicoDb/Condition.php
@@ -0,0 +1,291 @@
+<?php
+
+namespace PicoDb;
+
+/**
+ * Handle SQL conditions
+ *
+ * @author   Frederic Guillot
+ */
+class Condition
+{
+    /**
+     * Database instance
+     *
+     * @access private
+     * @var    Database
+     */
+    private $db;
+
+    /**
+     * Condition values
+     *
+     * @access private
+     * @var    array
+     */
+    private $values = array();
+
+    /**
+     * SQL conditions
+     *
+     * @access private
+     * @var    array
+     */
+    private $conditions = array();
+
+    /**
+     * SQL OR conditions
+     *
+     * @access private
+     * @var    array
+     */
+    private $or = array();
+
+    /**
+     * OR condition started
+     *
+     * @access private
+     * @var    boolean
+     */
+    private $beginOr = false;
+
+    /**
+     * Constructor
+     *
+     * @access public
+     * @param  Database  $db
+     */
+    public function __construct(Database $db)
+    {
+        $this->db = $db;
+    }
+
+    /**
+     * Build the SQL condition
+     *
+     * @access public
+     * @return string
+     */
+    public function build()
+    {
+        return empty($this->conditions) ? '' : ' WHERE '.implode(' AND ', $this->conditions);
+    }
+
+    /**
+     * Get condition values
+     *
+     * @access public
+     * @return array
+     */
+    public function getValues()
+    {
+        return $this->values;
+    }
+
+    /**
+     * Returns true if there is some conditions
+     *
+     * @access public
+     * @return boolean
+     */
+    public function hasCondition()
+    {
+        return ! empty($this->conditions);
+    }
+
+    /**
+     * Add custom condition
+     *
+     * @access public
+     * @param  string  $sql
+     */
+    public function addCondition($sql)
+    {
+        if ($this->beginOr) {
+            $this->or[] = $sql;
+        }
+        else {
+            $this->conditions[] = $sql;
+        }
+    }
+
+    /**
+     * Start OR condition
+     *
+     * @access public
+     */
+    public function beginOr()
+    {
+        $this->beginOr = true;
+        $this->or = array();
+    }
+    /**
+     * Close OR condition
+     *
+     * @access public
+     */
+    public function closeOr()
+    {
+        $this->beginOr = false;
+
+        if (! empty($this->or)) {
+            $this->conditions[] = '('.implode(' OR ', $this->or).')';
+        }
+    }
+
+    /**
+     * Equal condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function eq($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' = ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * Not equal condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function neq($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' != ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * IN condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  array    $values
+     */
+    public function in($column, array $values)
+    {
+        if (! empty($values)) {
+            $this->addCondition($this->db->escapeIdentifier($column).' IN ('.implode(', ', array_fill(0, count($values), '?')).')');
+            $this->values = array_merge($this->values, $values);
+        }
+    }
+
+    /**
+     * NOT IN condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  array    $values
+     */
+    public function notin($column, array $values)
+    {
+        if (! empty($values)) {
+            $this->addCondition($this->db->escapeIdentifier($column).' NOT IN ('.implode(', ', array_fill(0, count($values), '?')).')');
+            $this->values = array_merge($this->values, $values);
+        }
+    }
+
+    /**
+     * LIKE condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function like($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' '.$this->db->getDriver()->getOperator('LIKE').' ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * ILIKE condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function ilike($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' '.$this->db->getDriver()->getOperator('ILIKE').' ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * Greater than condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function gt($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' > ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * Lower than condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function lt($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' < ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * Greater than or equals condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function gte($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' >= ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * Lower than or equals condition
+     *
+     * @access public
+     * @param  string   $column
+     * @param  mixed    $value
+     */
+    public function lte($column, $value)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' <= ?');
+        $this->values[] = $value;
+    }
+
+    /**
+     * IS NULL condition
+     *
+     * @access public
+     * @param  string   $column
+     */
+    public function isNull($column)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' IS NULL');
+    }
+
+    /**
+     * IS NOT NULL condition
+     *
+     * @access public
+     * @param  string   $column
+     */
+    public function notNull($column)
+    {
+        $this->addCondition($this->db->escapeIdentifier($column).' IS NOT NULL');
+    }
+}
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Database.php b/vendor/fguillot/picodb/lib/PicoDb/Database.php
index e02fd13..d3e4ab9 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Database.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Database.php
@@ -3,21 +3,24 @@
 namespace PicoDb;
 
 use Closure;
-use PDO;
 use PDOException;
 use LogicException;
-use RuntimeException;
-use Picodb\Driver\Sqlite;
-use Picodb\Driver\Mysql;
-use Picodb\Driver\Postgres;
+use PicoDb\Driver\Sqlite;
+use PicoDb\Driver\Mysql;
+use PicoDb\Driver\Postgres;
 
+/**
+ * Database
+ *
+ * @author   Frederic Guillot
+ */
 class Database
 {
     /**
      * Database instances
      *
-     * @access private
      * @static
+     * @access private
      * @var array
      */
     private static $instances = array();
@@ -31,12 +34,11 @@ class Database
     private $logs = array();
 
     /**
-     * PDO instance
+     * Driver instance
      *
      * @access private
-     * @var PDO
      */
-    private $pdo;
+    private $driver;
 
     /**
      * Flag to calculate query time
@@ -52,7 +54,7 @@ class Database
      * @access public
      * @var boolean
      */
-    public $log_queries = false;
+    public $logQueries = false;
 
     /**
      * Number of SQL queries executed
@@ -60,10 +62,10 @@ class Database
      * @access public
      * @var integer
      */
-    public $nb_queries = 0;
+    public $nbQueries = 0;
 
     /**
-     * Constructor, iniatlize a PDO driver
+     * Initialize the driver
      *
      * @access public
      * @param  array     $settings    Connection settings
@@ -71,31 +73,22 @@ class Database
     public function __construct(array $settings)
     {
         if (! isset($settings['driver'])) {
-            throw new LogicException('You must define a database driver.');
+            throw new LogicException('You must define a database driver');
         }
 
         switch ($settings['driver']) {
-
             case 'sqlite':
-                require_once __DIR__.'/Driver/Sqlite.php';
-                $this->pdo = new Sqlite($settings);
+                $this->driver = new Sqlite($settings);
                 break;
-
             case 'mysql':
-                require_once __DIR__.'/Driver/Mysql.php';
-                $this->pdo = new Mysql($settings);
+                $this->driver = new Mysql($settings);
                 break;
-
             case 'postgres':
-                require_once __DIR__.'/Driver/Postgres.php';
-                $this->pdo = new Postgres($settings);
+                $this->driver = new Postgres($settings);
                 break;
-
             default:
-                throw new LogicException('This database driver is not supported.');
+                throw new LogicException('This database driver is not supported');
         }
-
-        $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
     }
 
     /**
@@ -116,7 +109,7 @@ class Database
      * @param  string    $name        Instance name
      * @param  Closure   $callback    Callback
      */
-    public static function bootstrap($name, Closure $callback)
+    public static function setInstance($name, Closure $callback)
     {
         self::$instances[$name] = $callback;
     }
@@ -129,10 +122,10 @@ class Database
      * @param  string    $name   Instance name
      * @return Database
      */
-    public static function get($name)
+    public static function getInstance($name)
     {
         if (! isset(self::$instances[$name])) {
-            throw new LogicException('No database instance created with that name.');
+            throw new LogicException('No database instance created with that name');
         }
 
         if (is_callable(self::$instances[$name])) {
@@ -168,11 +161,33 @@ class Database
      * Get the PDO connection
      *
      * @access public
-     * @return PDO
+     * @return \PDO
      */
     public function getConnection()
     {
-        return $this->pdo;
+        return $this->driver->getConnection();
+    }
+
+    /**
+     * Get the Driver instance
+     *
+     * @access public
+     * @return Sqlite|Postgres|Mysql
+     */
+    public function getDriver()
+    {
+        return $this->driver;
+    }
+
+    /**
+     * Get the last inserted id
+     *
+     * @access public
+     * @return integer
+     */
+    public function getLastId()
+    {
+        return $this->driver->getLastId();
     }
 
     /**
@@ -182,7 +197,7 @@ class Database
      */
     public function closeConnection()
     {
-        $this->pdo = null;
+        $this->driver->closeConnection();
     }
 
     /**
@@ -201,25 +216,44 @@ class Database
         }
 
         if (! empty($table)) {
-            return $this->pdo->escapeIdentifier($table).'.'.$this->pdo->escapeIdentifier($value);
+            return $this->driver->escape($table).'.'.$this->driver->escape($value);
         }
 
-        return $this->pdo->escapeIdentifier($value);
+        return $this->driver->escape($value);
+    }
+
+    /**
+     * Escape an identifier list
+     *
+     * @access public
+     * @param  array     $identifiers  List of identifiers
+     * @param  string    $table        Table name
+     * @return string[]
+     */
+    public function escapeIdentifierList(array $identifiers, $table = '')
+    {
+        foreach ($identifiers as $key => $value) {
+            $identifiers[$key] = $this->escapeIdentifier($value, $table);
+        }
+
+        return $identifiers;
     }
 
     /**
      * Execute a prepared statement
      *
+     * Note: returns false on duplicate keys instead of SQLException
+     *
      * @access public
      * @param  string    $sql      SQL query
      * @param  array     $values   Values
-     * @return PDOStatement|false
+     * @return \PDOStatement|false
      */
     public function execute($sql, array $values = array())
     {
         try {
 
-            if ($this->log_queries) {
+            if ($this->logQueries) {
                 $this->setLogMessage($sql);
             }
 
@@ -227,28 +261,19 @@ class Database
                 $start = microtime(true);
             }
 
-            $rq = $this->pdo->prepare($sql);
+            $rq = $this->getConnection()->prepare($sql);
             $rq->execute($values);
 
             if ($this->stopwatch) {
                 $this->setLogMessage('DURATION='.(microtime(true) - $start));
             }
 
-            $this->nb_queries++;
+            $this->nbQueries++;
 
             return $rq;
         }
         catch (PDOException $e) {
-
-            $this->cancelTransaction();
-
-            if (in_array($e->getCode(), $this->pdo->getDuplicateKeyErrorCode())) {
-                return false;
-            }
-
-            $this->setLogMessage($e->getMessage());
-
-            throw new RuntimeException('SQL error'.($this->log_queries ? ': '.$e->getMessage() : ''));
+            return $this->handleSqlError($e);
         }
     }
 
@@ -261,11 +286,37 @@ class Database
      */
     public function transaction(Closure $callback)
     {
-        $this->pdo->beginTransaction();
-        $result = $callback($this); // Rollback is done in the execute() method
-        $this->closeTransaction();
+        try {
 
-        return $result === null ? true : $result;
+            $this->startTransaction();
+            $result = $callback($this);
+            $this->closeTransaction();
+
+            return $result === null ? true : $result;
+        }
+        catch (PDOException $e) {
+            return $this->handleSqlError($e);
+        }
+    }
+
+    /**
+     * Handle PDOException
+     *
+     * @access private
+     * @param  PDOException $e
+     * @return bool
+     * @throws SQLException
+     */
+    private function handleSqlError(PDOException $e)
+    {
+        $this->cancelTransaction();
+        $this->setLogMessage($e->getMessage());
+
+        if ($this->driver->isDuplicateKeyError($e->getCode())) {
+            return false;
+        }
+
+        throw new SQLException('SQL error'.($this->logQueries ? ': '.$e->getMessage() : ''));
     }
 
     /**
@@ -275,8 +326,8 @@ class Database
      */
     public function startTransaction()
     {
-        if (! $this->pdo->inTransaction()) {
-            $this->pdo->beginTransaction();
+        if (! $this->getConnection()->inTransaction()) {
+            $this->getConnection()->beginTransaction();
         }
     }
 
@@ -287,8 +338,8 @@ class Database
      */
     public function closeTransaction()
     {
-        if ($this->pdo->inTransaction()) {
-            $this->pdo->commit();
+        if ($this->getConnection()->inTransaction()) {
+            $this->getConnection()->commit();
         }
     }
 
@@ -299,8 +350,8 @@ class Database
      */
     public function cancelTransaction()
     {
-        if ($this->pdo->inTransaction()) {
-            $this->pdo->rollback();
+        if ($this->getConnection()->inTransaction()) {
+            $this->getConnection()->rollback();
         }
     }
 
@@ -308,11 +359,11 @@ class Database
      * Get a table instance
      *
      * @access public
-     * @return Picodb\Table
+     * @param  string $table_name
+     * @return Table
      */
     public function table($table_name)
     {
-        require_once __DIR__.'/Table.php';
         return new Table($this, $table_name);
     }
 
@@ -320,12 +371,11 @@ class Database
      * Get a hashtable instance
      *
      * @access public
-     * @return Picodb\Hashtable
+     * @param  string    $table_name
+     * @return Hashtable
      */
     public function hashtable($table_name)
     {
-        require_once __DIR__.'/Table.php';
-        require_once __DIR__.'/Hashtable.php';
         return new Hashtable($this, $table_name);
     }
 
@@ -333,11 +383,10 @@ class Database
      * Get a schema instance
      *
      * @access public
-     * @return Picodb\Schema
+     * @return Schema
      */
     public function schema()
     {
-        require_once __DIR__.'/Schema.php';
         return new Schema($this);
     }
 }
\ No newline at end of file
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Driver/Base.php b/vendor/fguillot/picodb/lib/PicoDb/Driver/Base.php
new file mode 100644
index 0000000..fd6aa40
--- /dev/null
+++ b/vendor/fguillot/picodb/lib/PicoDb/Driver/Base.php
@@ -0,0 +1,192 @@
+<?php
+
+namespace PicoDb\Driver;
+
+use PDO;
+use LogicException;
+use PDOException;
+
+/**
+ * Base Driver class
+ *
+ * @author   Frederic Guillot
+ */
+abstract class Base
+{
+    /**
+     * List of required settings options
+     *
+     * @access protected
+     * @var array
+     */
+    protected $requiredAtttributes = array();
+
+    /**
+     * PDO connection
+     *
+     * @access protected
+     * @var PDO
+     */
+    protected $pdo = null;
+
+    /**
+     * Create a new PDO connection
+     *
+     * @abstract
+     * @access public
+     * @param  array   $settings
+     */
+    abstract public function createConnection(array $settings);
+
+    /**
+     * Enable foreign keys
+     *
+     * @abstract
+     * @access public
+     */
+    abstract public function enableForeignKeys();
+
+    /**
+     * Disable foreign keys
+     *
+     * @abstract
+     * @access public
+     */
+    abstract public function disableForeignKeys();
+
+    /**
+     * Return true if the error code is a duplicate key
+     *
+     * @abstract
+     * @access public
+     * @param  integer  $code
+     * @return boolean
+     */
+    abstract public function isDuplicateKeyError($code);
+
+    /**
+     * Escape identifier
+     *
+     * @abstract
+     * @access public
+     * @param  string  $identifier
+     * @return string
+     */
+    abstract public function escape($identifier);
+
+    /**
+     * Get non standard operator
+     *
+     * @abstract
+     * @access public
+     * @param  string  $operator
+     * @return string
+     */
+    abstract public function getOperator($operator);
+
+    /**
+     * Get last inserted id
+     *
+     * @abstract
+     * @access public
+     * @return integer
+     */
+    abstract public function getLastId();
+
+    /**
+     * Get current schema version
+     *
+     * @abstract
+     * @access public
+     * @return integer
+     */
+    abstract public function getSchemaVersion();
+
+    /**
+     * Set current schema version
+     *
+     * @abstract
+     * @access public
+     * @param  integer  $version
+     */
+    abstract public function setSchemaVersion($version);
+
+    /**
+     * Constructor
+     *
+     * @access public
+     * @param  array   $settings
+     */
+    public function __construct(array $settings)
+    {
+        foreach ($this->requiredAtttributes as $attribute) {
+            if (! isset($settings[$attribute])) {
+                throw new LogicException('This configuration parameter is missing: "'.$attribute.'"');
+            }
+        }
+
+        $this->createConnection($settings);
+        $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+    }
+
+    /**
+     * Get the PDO connection
+     *
+     * @access public
+     * @return PDO
+     */
+    public function getConnection()
+    {
+        return $this->pdo;
+    }
+
+    /**
+     * Release the PDO connection
+     *
+     * @access public
+     */
+    public function closeConnection()
+    {
+        $this->pdo = null;
+    }
+
+    /**
+     * Upsert for a key/value variable
+     *
+     * @access public
+     * @param  string  $table
+     * @param  string  $keyColumn
+     * @param  string  $valueColumn
+     * @param  array   $dictionary
+     * @return bool    False on failure
+     */
+    public function upsert($table, $keyColumn, $valueColumn, array $dictionary)
+    {
+        try {
+            $this->pdo->beginTransaction();
+
+            foreach ($dictionary as $key => $value) {
+
+                $rq = $this->pdo->prepare('SELECT 1 FROM '.$this->escape($table).' WHERE '.$this->escape($keyColumn).'=?');
+                $rq->execute(array($key));
+
+                if ($rq->fetchColumn()) {
+                    $rq = $this->pdo->prepare('UPDATE '.$this->escape($table).' SET '.$this->escape($valueColumn).'=? WHERE '.$this->escape($keyColumn).'=?');
+                    $rq->execute(array($value, $key));
+                }
+                else {
+                    $rq = $this->pdo->prepare('INSERT INTO '.$this->escape($table).' ('.$this->escape($keyColumn).', '.$this->escape($valueColumn).') VALUES (?, ?)');
+                    $rq->execute(array($key, $value));
+                }
+            }
+
+            $this->pdo->commit();
+
+            return true;
+        }
+        catch (PDOException $e) {
+            $this->pdo->rollback();
+            return false;
+        }
+    }
+}
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Driver/Mysql.php b/vendor/fguillot/picodb/lib/PicoDb/Driver/Mysql.php
index c90a49c..e1ae73b 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Driver/Mysql.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Driver/Mysql.php
@@ -3,29 +3,46 @@
 namespace PicoDb\Driver;
 
 use PDO;
-use LogicException;
+use PDOException;
 
-class Mysql extends PDO
+/**
+ * Mysql Driver
+ *
+ * @author   Frederic Guillot
+ */
+class Mysql extends Base
 {
-    private $schema_table = 'schema_version';
+    /**
+     * List of required settings options
+     *
+     * @access protected
+     * @var array
+     */
+    protected $requiredAtttributes = array(
+        'hostname',
+        'username',
+        'password',
+        'database',
+    );
 
-    public function __construct(array $settings)
+    /**
+     * Table to store the schema version
+     *
+     * @access private
+     * @var array
+     */
+    private $schemaTable = 'schema_version';
+
+    /**
+     * Create a new PDO connection
+     *
+     * @access public
+     * @param  array   $settings
+     */
+    public function createConnection(array $settings)
     {
-        $required_atttributes = array(
-            'hostname',
-            'username',
-            'password',
-            'database',
-            'charset',
-        );
-
-        foreach ($required_atttributes as $attribute) {
-            if (! isset($settings[$attribute])) {
-                throw new LogicException('This configuration parameter is missing: "'.$attribute.'"');
-            }
-        }
-
-        $dsn = 'mysql:host='.$settings['hostname'].';dbname='.$settings['database'].';charset='.$settings['charset'];
+        $charset = empty($settings['charset']) ? 'utf8' : $settings['charset'];
+        $dsn = 'mysql:host='.$settings['hostname'].';dbname='.$settings['database'].';charset='.$charset;
 
         if (! empty($settings['port'])) {
             $dsn .= ';port='.$settings['port'];
@@ -35,59 +52,159 @@ class Mysql extends PDO
             PDO::MYSQL_ATTR_INIT_COMMAND => 'SET sql_mode = STRICT_ALL_TABLES',
         );
 
-        parent::__construct($dsn, $settings['username'], $settings['password'], $options);
+        $this->pdo = new PDO($dsn, $settings['username'], $settings['password'], $options);
 
         if (isset($settings['schema_table'])) {
-            $this->schema_table = $settings['schema_table'];
+            $this->schemaTable = $settings['schema_table'];
         }
     }
 
+    /**
+     * Enable foreign keys
+     *
+     * @access public
+     */
+    public function enableForeignKeys()
+    {
+        $this->pdo->exec('SET FOREIGN_KEY_CHECKS=1');
+    }
+
+    /**
+     * Disable foreign keys
+     *
+     * @access public
+     */
+    public function disableForeignKeys()
+    {
+        $this->pdo->exec('SET FOREIGN_KEY_CHECKS=0');
+    }
+
+    /**
+     * Return true if the error code is a duplicate key
+     *
+     * @access public
+     * @param  integer  $code
+     * @return boolean
+     */
+    public function isDuplicateKeyError($code)
+    {
+        return $code == 23000;
+    }
+
+    /**
+     * Escape identifier
+     *
+     * @access public
+     * @param  string  $identifier
+     * @return string
+     */
+    public function escape($identifier)
+    {
+        return '`'.$identifier.'`';
+    }
+
+    /**
+     * Get non standard operator
+     *
+     * @access public
+     * @param  string  $operator
+     * @return string
+     */
+    public function getOperator($operator)
+    {
+        if ($operator === 'LIKE') {
+            return 'LIKE BINARY';
+        }
+        else if ($operator === 'ILIKE') {
+            return 'LIKE';
+        }
+
+        return '';
+    }
+
+    /**
+     * Get last inserted id
+     *
+     * @access public
+     * @return integer
+     */
+    public function getLastId()
+    {
+        return $this->pdo->lastInsertId();
+    }
+
+    /**
+     * Get current schema version
+     *
+     * @access public
+     * @return integer
+     */
     public function getSchemaVersion()
     {
-        $this->exec("CREATE TABLE IF NOT EXISTS `".$this->schema_table."` (`version` INT DEFAULT '0')");
+        $this->pdo->exec("CREATE TABLE IF NOT EXISTS `".$this->schemaTable."` (`version` INT DEFAULT '0')");
 
-        $rq = $this->prepare('SELECT `version` FROM `'.$this->schema_table.'`');
+        $rq = $this->pdo->prepare('SELECT `version` FROM `'.$this->schemaTable.'`');
         $rq->execute();
-        $result = $rq->fetch(PDO::FETCH_ASSOC);
+        $result = $rq->fetchColumn();
 
-        if (isset($result['version'])) {
-            return (int) $result['version'];
+        if ($result !== false) {
+            return (int) $result;
         }
         else {
-            $this->exec('INSERT INTO `'.$this->schema_table.'` VALUES(0)');
+            $this->pdo->exec('INSERT INTO `'.$this->schemaTable.'` VALUES(0)');
         }
 
         return 0;
     }
 
+    /**
+     * Set current schema version
+     *
+     * @access public
+     * @param  integer  $version
+     */
     public function setSchemaVersion($version)
     {
-        $rq = $this->prepare('UPDATE `'.$this->schema_table.'` SET `version`=?');
+        $rq = $this->pdo->prepare('UPDATE `'.$this->schemaTable.'` SET `version`=?');
         $rq->execute(array($version));
     }
 
-    public function getLastId()
+    /**
+     * Upsert for a key/value variable
+     *
+     * @access public
+     * @param  string  $table
+     * @param  string  $keyColumn
+     * @param  string  $valueColumn
+     * @param  array   $dictionary
+     * @return bool    False on failure
+     */
+    public function upsert($table, $keyColumn, $valueColumn, array $dictionary)
     {
-        return $this->lastInsertId();
-    }
+        try {
 
-    public function escapeIdentifier($value)
-    {
-        return '`'.$value.'`';
-    }
+            $sql = sprintf(
+                'REPLACE INTO %s (%s, %s) VALUES %s',
+                $this->escape($table),
+                $this->escape($keyColumn),
+                $this->escape($valueColumn),
+                implode(', ', array_fill(0, count($dictionary), '(?, ?)'))
+            );
 
-    public function operatorLikeCaseSensitive()
-    {
-        return 'LIKE BINARY';
-    }
+            $values = array();
 
-    public function operatorLikeNotCaseSensitive()
-    {
-        return 'LIKE';
-    }
+            foreach ($dictionary as $key => $value) {
+                $values[] = $key;
+                $values[] = $value;
+            }
 
-    public function getDuplicateKeyErrorCode()
-    {
-        return array(23000);
+            $rq = $this->pdo->prepare($sql);
+            $rq->execute($values);
+
+            return true;
+        }
+        catch (PDOException $e) {
+            return false;
+        }
     }
-}
\ No newline at end of file
+}
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Driver/Postgres.php b/vendor/fguillot/picodb/lib/PicoDb/Driver/Postgres.php
index 71aa638..4259101 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Driver/Postgres.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Driver/Postgres.php
@@ -3,88 +3,170 @@
 namespace PicoDb\Driver;
 
 use PDO;
-use LogicException;
+use PDOException;
 
-class Postgres extends PDO
+/**
+ * Postgres Driver
+ *
+ * @author   Frederic Guillot
+ */
+class Postgres extends Base
 {
-    private $schema_table = 'schema_version';
+    /**
+     * List of required settings options
+     *
+     * @access protected
+     * @var array
+     */
+    protected $requiredAtttributes = array(
+        'hostname',
+        'username',
+        'password',
+        'database',
+    );
 
-    public function __construct(array $settings)
+    /**
+     * Table to store the schema version
+     *
+     * @access private
+     * @var array
+     */
+    private $schemaTable = 'schema_version';
+
+    /**
+     * Create a new PDO connection
+     *
+     * @access public
+     * @param  array   $settings
+     */
+    public function createConnection(array $settings)
     {
-        $required_atttributes = array(
-            'hostname',
-            'username',
-            'password',
-            'database',
-        );
-
-        foreach ($required_atttributes as $attribute) {
-            if (! isset($settings[$attribute])) {
-                throw new LogicException('This configuration parameter is missing: "'.$attribute.'"');
-            }
-        }
-
         $dsn = 'pgsql:host='.$settings['hostname'].';dbname='.$settings['database'];
 
         if (! empty($settings['port'])) {
             $dsn .= ';port='.$settings['port'];
         }
 
-        parent::__construct($dsn, $settings['username'], $settings['password']);
+        $this->pdo = new PDO($dsn, $settings['username'], $settings['password']);
 
         if (isset($settings['schema_table'])) {
-            $this->schema_table = $settings['schema_table'];
+            $this->schemaTable = $settings['schema_table'];
         }
     }
 
+    /**
+     * Enable foreign keys
+     *
+     * @access public
+     */
+    public function enableForeignKeys()
+    {
+    }
+
+    /**
+     * Disable foreign keys
+     *
+     * @access public
+     */
+    public function disableForeignKeys()
+    {
+    }
+
+    /**
+     * Return true if the error code is a duplicate key
+     *
+     * @access public
+     * @param  integer  $code
+     * @return boolean
+     */
+    public function isDuplicateKeyError($code)
+    {
+        return $code == 23505 || $code == 23503;
+    }
+
+    /**
+     * Escape identifier
+     *
+     * @access public
+     * @param  string  $identifier
+     * @return string
+     */
+    public function escape($identifier)
+    {
+        return '"'.$identifier.'"';
+    }
+
+    /**
+     * Get non standard operator
+     *
+     * @access public
+     * @param  string  $operator
+     * @return string
+     */
+    public function getOperator($operator)
+    {
+        if ($operator === 'LIKE') {
+            return 'LIKE';
+        }
+        else if ($operator === 'ILIKE') {
+            return 'ILIKE';
+        }
+
+        return '';
+    }
+
+    /**
+     * Get last inserted id
+     *
+     * @access public
+     * @return integer
+     */
+    public function getLastId()
+    {
+        try {
+            $rq = $this->pdo->prepare('SELECT LASTVAL()');
+            $rq->execute();
+
+            return $rq->fetchColumn();
+        }
+        catch (PDOException $e) {
+            return 0;
+        }
+    }
+
+    /**
+     * Get current schema version
+     *
+     * @access public
+     * @return integer
+     */
     public function getSchemaVersion()
     {
-        $this->exec("CREATE TABLE IF NOT EXISTS ".$this->schema_table." (version SMALLINT DEFAULT 0)");
+        $this->pdo->exec("CREATE TABLE IF NOT EXISTS ".$this->schemaTable." (version INTEGER DEFAULT 0)");
 
-        $rq = $this->prepare('SELECT version FROM '.$this->schema_table.'');
+        $rq = $this->pdo->prepare('SELECT "version" FROM "'.$this->schemaTable.'"');
         $rq->execute();
-        $result = $rq->fetch(PDO::FETCH_ASSOC);
+        $result = $rq->fetchColumn();
 
-        if (isset($result['version'])) {
-            return (int) $result['version'];
+        if ($result !== false) {
+            return (int) $result;
         }
         else {
-            $this->exec('INSERT INTO '.$this->schema_table.' VALUES(0)');
+            $this->pdo->exec('INSERT INTO '.$this->schemaTable.' VALUES(0)');
         }
 
         return 0;
     }
 
+    /**
+     * Set current schema version
+     *
+     * @access public
+     * @param  integer  $version
+     */
     public function setSchemaVersion($version)
     {
-        $rq = $this->prepare('UPDATE '.$this->schema_table.' SET version=?');
+        $rq = $this->pdo->prepare('UPDATE '.$this->schemaTable.' SET version=?');
         $rq->execute(array($version));
     }
-
-    public function getLastId()
-    {
-        $rq = $this->prepare('SELECT LASTVAL()');
-        $rq->execute();
-        return $rq->fetchColumn();
-    }
-
-    public function escapeIdentifier($value)
-    {
-        return '"'.$value.'"';
-    }
-
-    public function operatorLikeCaseSensitive()
-    {
-        return 'LIKE';
-    }
-
-    public function operatorLikeNotCaseSensitive()
-    {
-        return 'ILIKE';
-    }
-
-    public function getDuplicateKeyErrorCode()
-    {
-        return array(23505, 23503);
-    }
-}
\ No newline at end of file
+}
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Driver/Sqlite.php b/vendor/fguillot/picodb/lib/PicoDb/Driver/Sqlite.php
index 0943d15..67881ee 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Driver/Sqlite.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Driver/Sqlite.php
@@ -3,67 +3,166 @@
 namespace PicoDb\Driver;
 
 use PDO;
-use LogicException;
+use PDOException;
 
-class Sqlite extends PDO
+/**
+ * Sqlite Driver
+ *
+ * @author   Frederic Guillot
+ */
+class Sqlite extends Base
 {
-    public function __construct(array $settings)
-    {
-        $required_atttributes = array(
-            'filename',
-        );
+    /**
+     * List of required settings options
+     *
+     * @access protected
+     * @var array
+     */
+    protected $requiredAtttributes = array('filename');
 
-        foreach ($required_atttributes as $attribute) {
-            if (! isset($settings[$attribute])) {
-                throw new LogicException('This configuration parameter is missing: "'.$attribute.'"');
-            }
+    /**
+     * Create a new PDO connection
+     *
+     * @access public
+     * @param  array   $settings
+     */
+    public function createConnection(array $settings)
+    {
+        $this->pdo = new PDO('sqlite:'.$settings['filename']);
+        $this->enableForeignKeys();
+    }
+
+    /**
+     * Enable foreign keys
+     *
+     * @access public
+     */
+    public function enableForeignKeys()
+    {
+        $this->pdo->exec('PRAGMA foreign_keys = ON');
+    }
+
+    /**
+     * Disable foreign keys
+     *
+     * @access public
+     */
+    public function disableForeignKeys()
+    {
+        $this->pdo->exec('PRAGMA foreign_keys = OFF');
+    }
+
+    /**
+     * Return true if the error code is a duplicate key
+     *
+     * @access public
+     * @param  integer  $code
+     * @return boolean
+     */
+    public function isDuplicateKeyError($code)
+    {
+        return $code == 23000;
+    }
+
+    /**
+     * Escape identifier
+     *
+     * @access public
+     * @param  string  $identifier
+     * @return string
+     */
+    public function escape($identifier)
+    {
+        return '"'.$identifier.'"';
+    }
+
+    /**
+     * Get non standard operator
+     *
+     * @access public
+     * @param  string  $operator
+     * @return string
+     */
+    public function getOperator($operator)
+    {
+        if ($operator === 'LIKE' || $operator === 'ILIKE') {
+            return 'LIKE';
         }
 
-        parent::__construct('sqlite:'.$settings['filename']);
-
-        $this->exec('PRAGMA foreign_keys = ON');
-    }
-
-    public function getSchemaVersion()
-    {
-        $rq = $this->prepare('PRAGMA user_version');
-        $rq->execute();
-        $result = $rq->fetch(PDO::FETCH_ASSOC);
-
-        if (isset($result['user_version'])) {
-            return (int) $result['user_version'];
-        }
-
-        return 0;
-    }
-
-    public function setSchemaVersion($version)
-    {
-        $this->exec('PRAGMA user_version='.$version);
+        return '';
     }
 
+    /**
+     * Get last inserted id
+     *
+     * @access public
+     * @return integer
+     */
     public function getLastId()
     {
-        return $this->lastInsertId();
+        return $this->pdo->lastInsertId();
     }
 
-    public function escapeIdentifier($value)
+    /**
+     * Get current schema version
+     *
+     * @access public
+     * @return integer
+     */
+    public function getSchemaVersion()
     {
-        return '"'.$value.'"';
+        $rq = $this->pdo->prepare('PRAGMA user_version');
+        $rq->execute();
+
+        return (int) $rq->fetchColumn();
     }
 
-    public function operatorLikeCaseSensitive()
+    /**
+     * Set current schema version
+     *
+     * @access public
+     * @param  integer  $version
+     */
+    public function setSchemaVersion($version)
     {
-        return 'LIKE';
+        $this->pdo->exec('PRAGMA user_version='.$version);
     }
 
-    public function operatorLikeNotCaseSensitive()
+    /**
+     * Upsert for a key/value variable
+     *
+     * @access public
+     * @param  string  $table
+     * @param  string  $keyColumn
+     * @param  string  $valueColumn
+     * @param  array   $dictionary
+     * @return bool    False on failure
+     */
+    public function upsert($table, $keyColumn, $valueColumn, array $dictionary)
     {
-        return 'LIKE';
-    }
+        try {
+            $this->pdo->beginTransaction();
 
-    public function getDuplicateKeyErrorCode()
-    {
-        return array(23000);
+            foreach ($dictionary as $key => $value) {
+
+                $sql = sprintf(
+                    'INSERT OR REPLACE INTO %s (%s, %s) VALUES (?, ?)',
+                    $this->escape($table),
+                    $this->escape($keyColumn),
+                    $this->escape($valueColumn)
+                );
+
+                $rq = $this->pdo->prepare($sql);
+                $rq->execute(array($key, $value));
+            }
+
+            $this->pdo->commit();
+
+            return true;
+        }
+        catch (PDOException $e) {
+            $this->pdo->rollback();
+            return false;
+        }
     }
-}
\ No newline at end of file
+}
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Hashtable.php b/vendor/fguillot/picodb/lib/PicoDb/Hashtable.php
index b904c97..2121cfc 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Hashtable.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Hashtable.php
@@ -4,21 +4,40 @@ namespace PicoDb;
 
 use PDO;
 
+/**
+ * Hashtable (key/value)
+ *
+ * @author   Frederic Guillot
+ * @author   Mathias Kresin
+ */
 class Hashtable extends Table
 {
-    private $column_key = 'key';
-    private $column_value = 'value';
+    /**
+     * Column for the key
+     *
+     * @access private
+     * @var    string
+     */
+    private $keyColumn = 'key';
+
+    /**
+     * Column for the value
+     *
+     * @access private
+     * @var    string
+     */
+    private $valueColumn = 'value';
 
     /**
      * Set the key column
      *
      * @access public
-     * @param  string $column
-     * @return \PicoDb\Table
+     * @param  string  $column
+     * @return Table
      */
     public function columnKey($column)
     {
-        $this->column_key = $column;
+        $this->keyColumn = $column;
         return $this;
     }
 
@@ -26,12 +45,12 @@ class Hashtable extends Table
      * Set the value column
      *
      * @access public
-     * @param  string $column
-     * @return \PicoDb\Table
+     * @param  string  $column
+     * @return Table
      */
     public function columnValue($column)
     {
-        $this->column_value = $column;
+        $this->valueColumn = $column;
         return $this;
     }
 
@@ -39,64 +58,12 @@ class Hashtable extends Table
      * Insert or update
      *
      * @access public
-     * @param  array    $data
+     * @param  array    $hashmap
      * @return boolean
      */
-    public function put(array $data)
+    public function put(array $hashmap)
     {
-        switch ($this->db->getConnection()->getAttribute(PDO::ATTR_DRIVER_NAME)) {
-            case 'mysql':
-                $sql = sprintf(
-                    'REPLACE INTO %s (%s) VALUES %s',
-                    $this->db->escapeIdentifier($this->table_name),
-                    "$this->column_key, $this->column_value",
-                    implode(', ', array_fill(0, count($data), '(?, ?)'))
-                );
-
-                foreach ($data as $key => $value) {
-                    $this->values[] = $key;
-                    $this->values[] = $value;
-                }
-
-                $this->db->execute($sql, $this->values);
-                break;
-            case 'sqlite': // multi insert (see mysql) requires sqlite library > 3.7.11 (bundled with PHP 5.5.11+)
-                // all or nothing
-                $this->db->startTransaction();
-
-                foreach($data as $key => $value) {
-                    $sql = sprintf(
-                        'INSERT OR REPLACE INTO %s (%s) VALUES (?, ?)',
-                        $this->db->escapeIdentifier($this->table_name),
-                        $this->db->escapeIdentifier($this->column_key).', '.$this->db->escapeIdentifier($this->column_value)
-                    );
-
-                    $this->db->execute($sql, array($key, $value));
-                }
-
-                break;
-            default: // no upsert available, need to make a select/update/insert limbo
-                // all or nothing
-                $this->db->startTransaction();
-
-                foreach($data as $key => $value) {
-                    // check if the key exists
-                    $this->eq($this->column_key, $key);
-
-                    if ($this->count() === 1) {
-                        // update the record
-                        $this->update(array($this->column_key => $key, $this->column_value => $value));
-                    }
-                    else {
-                        // insert the record
-                        $this->insert(array($this->column_key => $key, $this->column_value => $value));
-                    }
-                }
-        }
-
-        $this->db->closeTransaction();
-
-        return true;
+        return $this->db->getDriver()->upsert($this->getName(), $this->keyColumn, $this->valueColumn, $hashmap);
     }
 
     /**
@@ -111,13 +78,13 @@ class Hashtable extends Table
 
         // setup where condition
         if (func_num_args() > 0) {
-            $this->in($this->column_key, func_get_args());
+            $this->in($this->keyColumn, func_get_args());
         }
 
         // setup to select columns in case that there are more than two
-        $this->columns($this->column_key, $this->column_value);
+        $this->columns($this->keyColumn, $this->valueColumn);
 
-        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
+        $rq = $this->db->execute($this->buildSelectQuery(), $this->condition->getValues());
         $rows = $rq->fetchAll(PDO::FETCH_NUM);
 
         foreach ($rows as $row) {
@@ -137,8 +104,8 @@ class Hashtable extends Table
      */
     public function getAll($key, $value)
     {
-        $this->column_key = $key;
-        $this->column_value = $value;
+        $this->keyColumn = $key;
+        $this->valueColumn = $value;
         return $this->get();
     }
 }
diff --git a/vendor/fguillot/picodb/lib/PicoDb/SQLException.php b/vendor/fguillot/picodb/lib/PicoDb/SQLException.php
new file mode 100644
index 0000000..4d5cd68
--- /dev/null
+++ b/vendor/fguillot/picodb/lib/PicoDb/SQLException.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace PicoDb;
+
+use Exception;
+
+/**
+ * SQLException
+ *
+ * @author   Frederic Guillot
+ */
+class SQLException extends Exception
+{
+}
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Schema.php b/vendor/fguillot/picodb/lib/PicoDb/Schema.php
index c03e1f0..d0ba1c7 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Schema.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Schema.php
@@ -4,18 +4,42 @@ namespace PicoDb;
 
 use PDOException;
 
+/**
+ * Schema migration class
+ *
+ * @author   Frederic Guillot
+ */
 class Schema
 {
+    /**
+     * Database instance
+     *
+     * @access protected
+     * @var Database
+     */
     protected $db = null;
 
+    /**
+     * Constructor
+     *
+     * @access public
+     * @param  Database  $db
+     */
     public function __construct(Database $db)
     {
         $this->db = $db;
     }
 
+    /**
+     * Check the schema version and run the migrations
+     *
+     * @access public
+     * @param  integer  $last_version
+     * @return boolean
+     */
     public function check($last_version = 1)
     {
-        $current_version = $this->db->getConnection()->getSchemaVersion();
+        $current_version = $this->db->getDriver()->getSchemaVersion();
 
         if ($current_version < $last_version) {
             return $this->migrateTo($current_version, $last_version);
@@ -24,11 +48,20 @@ class Schema
         return true;
     }
 
+    /**
+     * Migrate the schema to one version to another
+     *
+     * @access public
+     * @param  integer  $current_version
+     * @param  integer  $next_version
+     * @return boolean
+     */
     public function migrateTo($current_version, $next_version)
     {
         try {
 
             $this->db->startTransaction();
+            $this->db->getDriver()->disableForeignKeys();
 
             for ($i = $current_version + 1; $i <= $next_version; $i++) {
 
@@ -36,15 +69,17 @@ class Schema
 
                 if (function_exists($function_name)) {
                     call_user_func($function_name, $this->db->getConnection());
-                    $this->db->getConnection()->setSchemaVersion($i);
                 }
             }
 
+            $this->db->getDriver()->setSchemaVersion($i - 1);
+            $this->db->getDriver()->enableForeignKeys();
             $this->db->closeTransaction();
         }
         catch (PDOException $e) {
             $this->db->setLogMessage($function_name.' => '.$e->getMessage());
             $this->db->cancelTransaction();
+            $this->db->getDriver()->enableForeignKeys();
             return false;
         }
 
diff --git a/vendor/fguillot/picodb/lib/PicoDb/Table.php b/vendor/fguillot/picodb/lib/PicoDb/Table.php
index e6f145f..ca8dd69 100644
--- a/vendor/fguillot/picodb/lib/PicoDb/Table.php
+++ b/vendor/fguillot/picodb/lib/PicoDb/Table.php
@@ -3,45 +3,167 @@
 namespace PicoDb;
 
 use PDO;
+use Closure;
 
+/**
+ * Table
+ *
+ * @author   Frederic Guillot
+ *
+ * @method   Table   addCondition($sql)
+ * @method   Table   beginOr()
+ * @method   Table   closeOr()
+ * @method   Table   eq($column, $value)
+ * @method   Table   neq($column, $value)
+ * @method   Table   in($column, array $values)
+ * @method   Table   notin($column, array $values)
+ * @method   Table   like($column, $value)
+ * @method   Table   ilike($column, $value)
+ * @method   Table   gt($column, $value)
+ * @method   Table   lt($column, $value)
+ * @method   Table   gte($column, $value)
+ * @method   Table   lte($column, $value)
+ * @method   Table   isNull($column)
+ * @method   Table   notNull($column)
+ */
 class Table
 {
+    /**
+     * Sorting direction
+     *
+     * @access public
+     * @var string
+     */
     const SORT_ASC = 'ASC';
     const SORT_DESC = 'DESC';
 
-    protected $db;
-    protected $table_name = '';
-    protected $values = array();
+    /**
+     * Condition instance
+     *
+     * @access public
+     * @var    Condition
+     */
+    public $condition;
 
+    /**
+     * Database instance
+     *
+     * @access protected
+     * @var    Database
+     */
+    protected $db;
+
+    /**
+     * Table name
+     *
+     * @access protected
+     * @var    string
+     */
+    protected $name = '';
+
+    /**
+     * Columns list for SELECT query
+     *
+     * @access private
+     * @var    array
+     */
     private $columns = array();
 
-    private $sql_limit = '';
-    private $sql_offset = '';
-    private $sql_order = '';
+    /**
+     * Columns to sum during update
+     *
+     * @access private
+     * @var    array
+     */
+    private $sumColumns = array();
 
+    /**
+     * SQL limit
+     *
+     * @access private
+     * @var    string
+     */
+    private $sqlLimit = '';
+
+    /**
+     * SQL offset
+     *
+     * @access private
+     * @var    string
+     */
+    private $sqlOffset = '';
+
+    /**
+     * SQL order
+     *
+     * @access private
+     * @var    string
+     */
+    private $sqlOrder = '';
+
+    /**
+     * SQL custom SELECT value
+     *
+     * @access private
+     * @var    string
+     */
+    private $sqlSelect = '';
+
+    /**
+     * SQL joins
+     *
+     * @access private
+     * @var    array
+     */
     private $joins = array();
 
-    private $condition = '';
-    private $conditions = array();
-    private $or_conditions = array();
-    private $is_or_condition = false;
-
+    /**
+     * Use DISTINCT or not?
+     *
+     * @access private
+     * @var    boolean
+     */
     private $distinct = false;
-    private $group_by = array();
 
-    private $filter_callback = null;
+    /**
+     * Group by those columns
+     *
+     * @access private
+     * @var    array
+     */
+    private $groupBy = array();
+
+    /**
+     * Callback for result filtering
+     *
+     * @access private
+     * @var    Closure
+     */
+    private $callback = null;
 
     /**
      * Constructor
      *
      * @access public
-     * @param  \PicoDb\Database   $db
-     * @param  string             $table_name
+     * @param  Database   $db
+     * @param  string     $name
      */
-    public function __construct(Database $db, $table_name)
+    public function __construct(Database $db, $name)
     {
         $this->db = $db;
-        $this->table_name = $table_name;
+        $this->name = $name;
+        $this->condition = new Condition($db);
+    }
+
+    /**
+     * Return the table name
+     *
+     * @access public
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
     }
 
     /**
@@ -53,12 +175,7 @@ class Table
      */
     public function save(array $data)
     {
-        if (! empty($this->conditions)) {
-            return $this->update($data);
-        }
-        else {
-            return $this->insert($data);
-        }
+        return $this->condition->hasCondition() ? $this->update($data) : $this->insert($data);
     }
 
     /**
@@ -70,25 +187,34 @@ class Table
      * @param  array   $data
      * @return boolean
      */
-    public function update(array $data)
+    public function update(array $data = array())
     {
         $columns = array();
         $values = array();
 
+        // Split columns and values
         foreach ($data as $column => $value) {
             $columns[] = $this->db->escapeIdentifier($column).'=?';
             $values[] = $value;
         }
 
-        foreach ($this->values as $value) {
+        // Sum columns
+        foreach ($this->sumColumns as $column => $value) {
+            $columns[] = $this->db->escapeIdentifier($column).'='.$this->db->escapeIdentifier($column).' + ?';
             $values[] = $value;
         }
 
+        // Append condition values
+        foreach ($this->condition->getValues() as $value) {
+            $values[] = $value;
+        }
+
+        // Build SQL query
         $sql = sprintf(
             'UPDATE %s SET %s %s',
-            $this->db->escapeIdentifier($this->table_name),
+            $this->db->escapeIdentifier($this->name),
             implode(', ', $columns),
-            $this->buildCondition()
+            $this->condition->build()
         );
 
         return $this->db->execute($sql, $values) !== false;
@@ -111,7 +237,7 @@ class Table
 
         $sql = sprintf(
             'INSERT INTO %s (%s) VALUES (%s)',
-            $this->db->escapeIdentifier($this->table_name),
+            $this->db->escapeIdentifier($this->name),
             implode(', ', $columns),
             implode(', ', array_fill(0, count($data), '?'))
         );
@@ -129,27 +255,14 @@ class Table
     {
         $sql = sprintf(
             'DELETE FROM %s %s',
-            $this->db->escapeIdentifier($this->table_name),
-            $this->buildCondition()
+            $this->db->escapeIdentifier($this->name),
+            $this->condition->build()
         );
 
-        $result = $this->db->execute($sql, $this->values);
+        $result = $this->db->execute($sql, $this->condition->getValues());
         return $result->rowCount() > 0;
     }
 
-    /**
-     * Add callback to alter the resultset
-     *
-     * @access public
-     * @param  array|callable  $callback
-     * @return \PicoDb\Table
-     */
-    public function filter($callback)
-    {
-        $this->filter_callback = $callback;
-        return $this;
-    }
-
     /**
      * Fetch all rows
      *
@@ -158,11 +271,11 @@ class Table
      */
     public function findAll()
     {
-        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
+        $rq = $this->db->execute($this->buildSelectQuery(), $this->condition->getValues());
         $results = $rq->fetchAll(PDO::FETCH_ASSOC);
 
-        if (is_callable($this->filter_callback) && ! empty($results)) {
-            return call_user_func($this->filter_callback, $results);
+        if (is_callable($this->callback) && ! empty($results)) {
+            return call_user_func($this->callback, $results);
         }
 
         return $results;
@@ -173,12 +286,12 @@ class Table
      *
      * @access public
      * @param  string    $column
-     * @return boolean
+     * @return mixed
      */
     public function findAllByColumn($column)
     {
         $this->columns = array($column);
-        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
+        $rq = $this->db->execute($this->buildSelectQuery(), $this->condition->getValues());
 
         return $rq->fetchAll(PDO::FETCH_COLUMN, 0);
     }
@@ -187,8 +300,7 @@ class Table
      * Fetch one row
      *
      * @access public
-     * @param  array    $data
-     * @return boolean
+     * @return array|null
      */
     public function findOne()
     {
@@ -210,35 +322,40 @@ class Table
         $this->limit(1);
         $this->columns = array($column);
 
-        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
-
-        return $rq->fetchColumn();
+        return $this->db->execute($this->buildSelectQuery(), $this->condition->getValues())->fetchColumn();
     }
 
     /**
-     * Build a select query
+     * Build a subquery with an alias
      *
      * @access public
-     * @return string
+     * @param  string  $sql
+     * @param  string  $alias
+     * @return Table
      */
-    public function buildSelectQuery()
+    public function subquery($sql, $alias)
     {
-        foreach ($this->columns as $key => $value) {
-            $this->columns[$key] = $this->db->escapeIdentifier($value, $this->table_name);
-        }
+        $this->columns[] = '('.$sql.') AS '.$this->db->escapeIdentifier($alias);
+        return $this;
+    }
 
-        return sprintf(
-            'SELECT %s %s FROM %s %s %s %s %s %s %s',
-            $this->distinct ? 'DISTINCT' : '',
-            empty($this->columns) ? '*' : implode(', ', $this->columns),
-            $this->db->escapeIdentifier($this->table_name),
-            implode(' ', $this->joins),
-            $this->buildCondition(),
-            empty($this->group_by) ? '' : 'GROUP BY '.implode(', ', $this->group_by),
-            $this->sql_order,
-            $this->sql_limit,
-            $this->sql_offset
+    /**
+     * Exists
+     *
+     * @access public
+     * @return integer
+     */
+    public function exists()
+    {
+        $sql = sprintf(
+            'SELECT 1 FROM %s '.implode(' ', $this->joins).$this->condition->build(),
+            $this->db->escapeIdentifier($this->name)
         );
+
+        $rq = $this->db->execute($sql, $this->condition->getValues());
+        $result = $rq->fetchColumn();
+
+        return $result ? true : false;
     }
 
     /**
@@ -250,11 +367,11 @@ class Table
     public function count()
     {
         $sql = sprintf(
-            'SELECT COUNT(*) FROM %s '.implode(' ', $this->joins).$this->buildCondition().$this->sql_order.$this->sql_limit.$this->sql_offset,
-            $this->db->escapeIdentifier($this->table_name)
+            'SELECT COUNT(*) FROM %s '.implode(' ', $this->joins).$this->condition->build().$this->sqlOrder.$this->sqlLimit.$this->sqlOffset,
+            $this->db->escapeIdentifier($this->name)
         );
 
-        $rq = $this->db->execute($sql, $this->values);
+        $rq = $this->db->execute($sql, $this->condition->getValues());
         $result = $rq->fetchColumn();
 
         return $result ? (int) $result : 0;
@@ -270,12 +387,12 @@ class Table
     public function sum($column)
     {
         $sql = sprintf(
-            'SELECT SUM(%s) FROM %s '.implode(' ', $this->joins).$this->buildCondition().$this->sql_order.$this->sql_limit.$this->sql_offset,
+            'SELECT SUM(%s) FROM %s '.implode(' ', $this->joins).$this->condition->build().$this->sqlOrder.$this->sqlLimit.$this->sqlOffset,
             $this->db->escapeIdentifier($column),
-            $this->db->escapeIdentifier($this->table_name)
+            $this->db->escapeIdentifier($this->name)
         );
 
-        $rq = $this->db->execute($sql, $this->values);
+        $rq = $this->db->execute($sql, $this->condition->getValues());
         $result = $rq->fetchColumn();
 
         return $result ? (float) $result : 0;
@@ -290,7 +407,7 @@ class Table
      * @param  string   $local_column       Local column
      * @param  string   $local_table        Local table
      * @param  string   $alias              Join table alias
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function join($table, $foreign_column, $local_column, $local_table = '', $alias = '')
     {
@@ -298,7 +415,7 @@ class Table
             'LEFT JOIN %s ON %s=%s',
             $this->db->escapeIdentifier($table),
             $this->db->escapeIdentifier($alias ?: $table).'.'.$this->db->escapeIdentifier($foreign_column),
-            $this->db->escapeIdentifier($local_table ?: $this->table_name).'.'.$this->db->escapeIdentifier($local_column)
+            $this->db->escapeIdentifier($local_table ?: $this->name).'.'.$this->db->escapeIdentifier($local_column)
         );
 
         return $this;
@@ -313,7 +430,7 @@ class Table
      * @param  string   $column1
      * @param  string   $table2
      * @param  string   $column2
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function left($table1, $alias1, $column1, $table2, $column2)
     {
@@ -328,100 +445,24 @@ class Table
         return $this;
     }
 
-    /**
-     * Add custom condition
-     *
-     * @access private
-     * @return Table
-     */
-    private function condition($condition)
-    {
-        $this->condition = $condition;
-        return $this;
-    }
-
-    /**
-     * Build condition
-     *
-     * @access private
-     * @return string
-     */
-    private function buildCondition()
-    {
-        if (! empty($this->condition)) {
-            return 'WHERE '.$this->condition;
-        }
-
-        return empty($this->conditions) ? '' : ' WHERE '.implode(' AND ', $this->conditions);
-    }
-
-    /**
-     * Add new condition
-     *
-     * @access public
-     * @param  string   $sql
-     * @return Table
-     */
-    public function addCondition($sql)
-    {
-        if ($this->is_or_condition) {
-            $this->or_conditions[] = $sql;
-        }
-        else {
-            $this->conditions[] = $sql;
-        }
-
-        return $this;
-    }
-
-    /**
-     * Start OR condition
-     *
-     * @access public
-     * @return \PicoDb\Table
-     */
-    public function beginOr()
-    {
-        $this->is_or_condition = true;
-        $this->or_conditions = array();
-        return $this;
-    }
-
-    /**
-     * Close OR condition
-     *
-     * @access public
-     * @return \PicoDb\Table
-     */
-    public function closeOr()
-    {
-        $this->is_or_condition = false;
-
-        if (! empty($this->or_conditions)) {
-            $this->conditions[] = '('.implode(' OR ', $this->or_conditions).')';
-        }
-
-        return $this;
-    }
-
     /**
      * Order by
      *
      * @access public
      * @param  string   $column    Column name
      * @param  string   $order     Direction ASC or DESC
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function orderBy($column, $order = self::SORT_ASC)
     {
         $order = strtoupper($order);
         $order = $order === self::SORT_ASC || $order === self::SORT_DESC ? $order : self::SORT_ASC;
 
-        if ($this->sql_order === '') {
-            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.$order;
+        if ($this->sqlOrder === '') {
+            $this->sqlOrder = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.$order;
         }
         else {
-            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.$order;
+            $this->sqlOrder .= ', '.$this->db->escapeIdentifier($column).' '.$order;
         }
 
         return $this;
@@ -432,17 +473,11 @@ class Table
      *
      * @access public
      * @param  string   $column
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function asc($column)
     {
-        if ($this->sql_order === '') {
-            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.self::SORT_ASC;
-        }
-        else {
-            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.self::SORT_ASC;
-        }
-
+        $this->orderBy($column, self::SORT_ASC);
         return $this;
     }
 
@@ -451,17 +486,11 @@ class Table
      *
      * @access public
      * @param  string   $column
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function desc($column)
     {
-        if ($this->sql_order === '') {
-            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.self::SORT_DESC;
-        }
-        else {
-            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.self::SORT_DESC;
-        }
-
+        $this->orderBy($column, self::SORT_DESC);
         return $this;
     }
 
@@ -470,12 +499,12 @@ class Table
      *
      * @access public
      * @param  integer   $value
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function limit($value)
     {
         if (! is_null($value)) {
-            $this->sql_limit = ' LIMIT '.(int) $value;
+            $this->sqlLimit = ' LIMIT '.(int) $value;
         }
 
         return $this;
@@ -486,12 +515,12 @@ class Table
      *
      * @access public
      * @param  integer   $value
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function offset($value)
     {
         if (! is_null($value)) {
-            $this->sql_offset = ' OFFSET '.(int) $value;
+            $this->sqlOffset = ' OFFSET '.(int) $value;
         }
 
         return $this;
@@ -501,11 +530,24 @@ class Table
      * Group by
      *
      * @access public
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function groupBy()
     {
-        $this->group_by = func_get_args();
+        $this->groupBy = func_get_args();
+        return $this;
+    }
+
+    /**
+     * Custom select
+     *
+     * @access public
+     * @param  string $select
+     * @return Table
+     */
+    public function select($select)
+    {
+        $this->sqlSelect = $select;
         return $this;
     }
 
@@ -513,7 +555,7 @@ class Table
      * Define the columns for the select
      *
      * @access public
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function columns()
     {
@@ -521,11 +563,25 @@ class Table
         return $this;
     }
 
+    /**
+     * Sum column
+     *
+     * @access public
+     * @param  string  $column
+     * @param  mixed   $value
+     * @return Table
+     */
+    public function sumColumn($column, $value)
+    {
+        $this->sumColumns[$column] = $value;
+        return $this;
+    }
+
     /**
      * Distinct
      *
      * @access public
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function distinct()
     {
@@ -534,119 +590,58 @@ class Table
         return $this;
     }
 
+    /**
+     * Add callback to alter the resultset
+     *
+     * @access public
+     * @param  Closure|array  $callback
+     * @return Table
+     */
+    public function callback($callback)
+    {
+        $this->callback = $callback;
+        return $this;
+    }
+
+    /**
+     * Build a select query
+     *
+     * @access public
+     * @return string
+     */
+    public function buildSelectQuery()
+    {
+        if (empty($this->sqlSelect)) {
+            $this->columns = $this->db->escapeIdentifierList($this->columns);
+            $this->sqlSelect = ($this->distinct ? 'DISTINCT ' : '').(empty($this->columns) ? '*' : implode(', ', $this->columns));
+        }
+
+        $this->groupBy = $this->db->escapeIdentifierList($this->groupBy);
+
+        return trim(sprintf(
+            'SELECT %s FROM %s %s %s %s %s %s %s',
+            $this->sqlSelect,
+            $this->db->escapeIdentifier($this->name),
+            implode(' ', $this->joins),
+            $this->condition->build(),
+            empty($this->groupBy) ? '' : 'GROUP BY '.implode(', ', $this->groupBy),
+            $this->sqlOrder,
+            $this->sqlLimit,
+            $this->sqlOffset
+        ));
+    }
+
     /**
      * Magic method for sql conditions
      *
      * @access public
      * @param  string   $name
      * @param  array    $arguments
-     * @return \PicoDb\Table
+     * @return Table
      */
     public function __call($name, array $arguments)
     {
-        $column = $arguments[0];
-        $sql = '';
-
-        switch (strtolower($name)) {
-
-            case 'in':
-                if (isset($arguments[1]) && is_array($arguments[1]) && ! empty($arguments[1])) {
-
-                    $sql = sprintf(
-                        '%s IN (%s)',
-                        $this->db->escapeIdentifier($column),
-                        implode(', ', array_fill(0, count($arguments[1]), '?'))
-                    );
-                }
-                break;
-
-            case 'notin':
-                if (isset($arguments[1]) && is_array($arguments[1]) && ! empty($arguments[1])) {
-
-                    $sql = sprintf(
-                        '%s NOT IN (%s)',
-                        $this->db->escapeIdentifier($column),
-                        implode(', ', array_fill(0, count($arguments[1]), '?'))
-                    );
-                }
-                break;
-
-            case 'like':
-                $sql = sprintf(
-                    '%s %s ?',
-                    $this->db->escapeIdentifier($column),
-                    $this->db->getConnection()->operatorLikeCaseSensitive()
-                );
-                break;
-
-            case 'ilike':
-                $sql = sprintf(
-                    '%s %s ?',
-                    $this->db->escapeIdentifier($column),
-                    $this->db->getConnection()->operatorLikeNotCaseSensitive()
-                );
-                break;
-
-            case 'eq':
-            case 'equal':
-            case 'equals':
-                $sql = sprintf('%s = ?', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'neq':
-            case 'notequal':
-            case 'notequals':
-                $sql = sprintf('%s != ?', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'gt':
-            case 'greaterthan':
-                $sql = sprintf('%s > ?', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'lt':
-            case 'lowerthan':
-                $sql = sprintf('%s < ?', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'gte':
-            case 'greaterthanorequals':
-                $sql = sprintf('%s >= ?', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'lte':
-            case 'lowerthanorequals':
-                $sql = sprintf('%s <= ?', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'isnull':
-                $sql = sprintf('%s IS NULL', $this->db->escapeIdentifier($column));
-                break;
-
-            case 'notnull':
-                $sql = sprintf('%s IS NOT NULL', $this->db->escapeIdentifier($column));
-                break;
-        }
-
-        if ($sql !== '') {
-
-            $this->addCondition($sql);
-
-            if (isset($arguments[1])) {
-
-                if (is_array($arguments[1])) {
-
-                    foreach ($arguments[1] as $value) {
-                        $this->values[] = $value;
-                    }
-                }
-                else {
-
-                    $this->values[] = $arguments[1];
-                }
-            }
-        }
-
+        call_user_func_array(array($this->condition, $name), $arguments);
         return $this;
     }
 }
diff --git a/vendor/fguillot/picodb/phpunit.xml b/vendor/fguillot/picodb/phpunit.xml
new file mode 100644
index 0000000..e719a50
--- /dev/null
+++ b/vendor/fguillot/picodb/phpunit.xml
@@ -0,0 +1,15 @@
+<phpunit
+   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+   xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.5/phpunit.xsd"
+   colors="true"
+   stopOnError="true"
+   stopOnFailure="true">
+   <testsuites>
+      <testsuite name="Sqlite Test Suite">
+         <file>tests/SqliteDriverTest.php</file>
+         <file>tests/SqliteDatabaseTest.php</file>
+         <file>tests/SqliteSchemaTest.php</file>
+         <file>tests/SqliteTableTest.php</file>
+      </testsuite>
+   </testsuites>
+</phpunit>
\ No newline at end of file
diff --git a/vendor/fguillot/picodb/tests/MysqlDatabaseTest.php b/vendor/fguillot/picodb/tests/MysqlDatabaseTest.php
new file mode 100644
index 0000000..780b876
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/MysqlDatabaseTest.php
@@ -0,0 +1,100 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Database;
+
+class MysqlDatabaseTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new Database(array('driver' => 'mysql', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'picodb'));
+        $this->db->getConnection()->exec('CREATE DATABASE IF NOT EXISTS `picodb`');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS foobar');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+        $this->db->logQueries = true;
+    }
+
+    public function testEscapeIdentifer()
+    {
+        $this->assertEquals('`a`', $this->db->escapeIdentifier('a'));
+        $this->assertEquals('a.b', $this->db->escapeIdentifier('a.b'));
+        $this->assertEquals('`c`.`a`', $this->db->escapeIdentifier('a', 'c'));
+        $this->assertEquals('a.b', $this->db->escapeIdentifier('a.b', 'c'));
+        $this->assertEquals('SELECT COUNT(*) FROM test', $this->db->escapeIdentifier('SELECT COUNT(*) FROM test'));
+        $this->assertEquals('SELECT COUNT(*) FROM test', $this->db->escapeIdentifier('SELECT COUNT(*) FROM test', 'b'));
+    }
+
+    public function testEscapeIdentiferList()
+    {
+        $this->assertEquals(array('`c`.`a`', '`c`.`b`'), $this->db->escapeIdentifierList(array('a', 'b'), 'c'));
+        $this->assertEquals(array('`a`', 'd.b'), $this->db->escapeIdentifierList(array('a', 'd.b')));
+    }
+
+    public function testThatPreparedStatementWorks()
+    {
+        $this->db->getConnection()->exec('CREATE TABLE foobar (id INT AUTO_INCREMENT NOT NULL, something TEXT, PRIMARY KEY (id)) ENGINE=InnoDB');
+        $this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+        $this->assertEquals(1, $this->db->getLastId());
+        $this->assertEquals('a', $this->db->execute('SELECT something FROM foobar WHERE something=?', array('a'))->fetchColumn());
+    }
+
+    /**
+     * @expectedException PicoDb\SQLException
+     */
+    public function testBadSQLQuery()
+    {
+        $this->db->execute('INSERT INTO foobar');
+    }
+
+    public function testDuplicateKey()
+    {
+        $this->db->getConnection()->exec('CREATE TABLE foobar (something CHAR(1) UNIQUE) ENGINE=InnoDB');
+
+        $this->assertNotFalse($this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a')));
+        $this->assertFalse($this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a')));
+
+        $this->assertEquals(1, $this->db->execute('SELECT COUNT(*) FROM foobar WHERE something=?', array('a'))->fetchColumn());
+    }
+
+    public function testThatTransactionReturnsAValue()
+    {
+        $this->assertEquals('a', $this->db->transaction(function ($db) {
+
+            $db->getConnection()->exec('CREATE TABLE foobar (something CHAR(1) UNIQUE) ENGINE=InnoDB');
+            $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+
+            return $db->execute('SELECT something FROM foobar WHERE something=?', array('a'))->fetchColumn();
+        }));
+    }
+
+    public function testThatTransactionReturnsTrue()
+    {
+        $this->assertTrue($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABLE foobar (something CHAR(1) UNIQUE) ENGINE=InnoDB');
+            $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+        }));
+    }
+
+    /**
+     * @expectedException PicoDb\SQLException
+     */
+    public function testThatTransactionThrowExceptionWhenRollbacked()
+    {
+        $this->assertFalse($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABL');
+        }));
+    }
+
+    public function testThatTransactionReturnsFalseWhithDuplicateKey()
+    {
+        $this->assertFalse($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABLE foobar (something CHAR(1) UNIQUE) ENGINE=InnoDB');
+            $r1 = $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+            $r2 = $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+            return $r1 && $r2;
+        }));
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/MysqlDriverTest.php b/vendor/fguillot/picodb/tests/MysqlDriverTest.php
new file mode 100644
index 0000000..25e5386
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/MysqlDriverTest.php
@@ -0,0 +1,65 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Driver\Mysql;
+
+class MysqlDriverTest extends PHPUnit_Framework_TestCase
+{
+    private $driver;
+
+    public function setUp()
+    {
+        $this->driver = new Mysql(array('hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'picodb'));
+        $this->driver->getConnection()->exec('CREATE DATABASE IF NOT EXISTS `picodb`');
+        $this->driver->getConnection()->exec('DROP TABLE IF EXISTS foobar');
+        $this->driver->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    public function testMissingRequiredParameter()
+    {
+        new Mysql(array());
+    }
+
+    public function testDuplicateKeyError()
+    {
+        $this->assertFalse($this->driver->isDuplicateKeyError(1234));
+        $this->assertTrue($this->driver->isDuplicateKeyError(23000));
+    }
+
+    public function testOperator()
+    {
+        $this->assertEquals('LIKE BINARY', $this->driver->getOperator('LIKE'));
+        $this->assertEquals('LIKE', $this->driver->getOperator('ILIKE'));
+        $this->assertEquals('', $this->driver->getOperator('FOO'));
+    }
+
+    public function testSchemaVersion()
+    {
+        $this->assertEquals(0, $this->driver->getSchemaVersion());
+
+        $this->driver->setSchemaVersion(1);
+        $this->assertEquals(1, $this->driver->getSchemaVersion());
+
+        $this->driver->setSchemaVersion(42);
+        $this->assertEquals(42, $this->driver->getSchemaVersion());
+    }
+
+    public function testLastInsertId()
+    {
+        $this->assertEquals(0, $this->driver->getLastId());
+
+        $this->driver->getConnection()->exec('CREATE TABLE foobar (id INT AUTO_INCREMENT NOT NULL, something TEXT, PRIMARY KEY (id)) ENGINE=InnoDB');
+        $this->driver->getConnection()->exec('INSERT INTO foobar (something) VALUES (1)');
+
+        $this->assertEquals(1, $this->driver->getLastId());
+    }
+
+    public function testEscape()
+    {
+        $this->assertEquals('`foobar`', $this->driver->escape('foobar'));
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/MysqlSchemaTest.php b/vendor/fguillot/picodb/tests/MysqlSchemaTest.php
new file mode 100644
index 0000000..b7a2d95
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/MysqlSchemaTest.php
@@ -0,0 +1,34 @@
+<?php
+
+require_once 'vendor/autoload.php';
+require_once __DIR__.'/SchemaFixture.php';
+
+class MysqlSchemaTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new PicoDb\Database(array('driver' => 'mysql', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'picodb'));
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test1');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test2');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+    }
+
+    public function testMigrations()
+    {
+        $this->assertTrue($this->db->schema()->check(2));
+        $this->assertEquals(2, $this->db->getDriver()->getSchemaVersion());
+    }
+
+    public function testFailedMigrations()
+    {
+        $this->assertEquals(0, $this->db->getDriver()->getSchemaVersion());
+        $this->assertFalse($this->db->schema()->check(3));
+        $this->assertEquals(0, $this->db->getDriver()->getSchemaVersion());
+
+        $logs = $this->db->getLogMessages();
+        $this->assertNotEmpty($logs);
+        $this->assertStringStartsWith('\Schema\version_3 => SQLSTATE[42000]: Syntax error or access violation', $logs[0]);
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/MysqlTableTest.php b/vendor/fguillot/picodb/tests/MysqlTableTest.php
new file mode 100644
index 0000000..eab784b
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/MysqlTableTest.php
@@ -0,0 +1,313 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Database;
+use PicoDb\Table;
+
+class MysqlTableTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new Database(array('driver' => 'mysql', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'picodb'));
+        $this->db->getConnection()->exec('CREATE DATABASE IF NOT EXISTS `picodb`');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test1');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test2');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS foobar');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+        $this->db->logQueries = true;
+    }
+
+    public function testSelect()
+    {
+        $this->assertEquals('SELECT 1 FROM `test`', $this->db->table('test')->select(1)->buildSelectQuery());
+    }
+
+    public function testColumns()
+    {
+        $this->assertEquals('SELECT `a`, `b` FROM `test`', $this->db->table('test')->columns('a', 'b')->buildSelectQuery());
+    }
+
+    public function testDistinct()
+    {
+        $this->assertEquals('SELECT DISTINCT `a`, `b` FROM `test`', $this->db->table('test')->distinct('a', 'b')->buildSelectQuery());
+    }
+
+    public function testGroupBy()
+    {
+        $this->assertEquals('SELECT * FROM `test`   GROUP BY `a`', $this->db->table('test')->groupBy('a')->buildSelectQuery());
+    }
+
+    public function testOrderBy()
+    {
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` ASC', $this->db->table('test')->asc('a')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` ASC', $this->db->table('test')->orderBy('a', Table::SORT_ASC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` DESC', $this->db->table('test')->desc('a', Table::SORT_DESC)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` DESC', $this->db->table('test')->orderBy('a', Table::SORT_DESC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` ASC, `b` ASC', $this->db->table('test')->asc('a')->asc('b')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` DESC, `b` DESC', $this->db->table('test')->desc('a')->desc('b')->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` ASC, `b` ASC', $this->db->table('test')->orderBy('a')->orderBy('b')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` DESC, `b` DESC', $this->db->table('test')->orderBy('a', Table::SORT_DESC)->orderBy('b', Table::SORT_DESC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM `test`     ORDER BY `a` DESC, `b` ASC', $this->db->table('test')->desc('a')->asc('b')->buildSelectQuery());
+    }
+
+    public function testLimit()
+    {
+        $this->assertEquals('SELECT * FROM `test`      LIMIT 10', $this->db->table('test')->limit(10)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`', $this->db->table('test')->limit(null)->buildSelectQuery());
+    }
+
+    public function testOffset()
+    {
+        $this->assertEquals('SELECT * FROM `test`       OFFSET 0', $this->db->table('test')->offset(0)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`       OFFSET 10', $this->db->table('test')->offset(10)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`', $this->db->table('test')->limit(null)->buildSelectQuery());
+    }
+
+    public function testLimitOffset()
+    {
+        $this->assertEquals('SELECT * FROM `test`      LIMIT 2  OFFSET 0', $this->db->table('test')->offset(0)->limit(2)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM `test`      LIMIT 5  OFFSET 10', $this->db->table('test')->offset(10)->limit(5)->buildSelectQuery());
+    }
+
+    public function testSubquery()
+    {
+        $this->assertEquals('SELECT (SELECT 1 FROM "foobar" WHERE 1=1) AS `b` FROM `test`', $this->db->table('test')->subquery('SELECT 1 FROM "foobar" WHERE 1=1', 'b')->buildSelectQuery());
+    }
+
+    public function testConditionEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` = ? AND `b` = ?', $table->eq('a', 2)->eq('b', 'foobar')->buildSelectQuery());
+        $this->assertEquals(array(2, 'foobar'), $table->condition->getValues());
+    }
+
+    public function testConditionNotEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` != ?', $table->neq('a', 2)->buildSelectQuery());
+        $this->assertEquals(array(2), $table->condition->getValues());
+    }
+
+    public function testConditionIn()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` IN (?, ?)', $table->in('a', array('b', 'c'))->buildSelectQuery());
+        $this->assertEquals(array('b', 'c'), $table->condition->getValues());
+
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`', $table->in('a', array())->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testConditionNotIn()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` NOT IN (?, ?)', $table->notin('a', array('b', 'c'))->buildSelectQuery());
+        $this->assertEquals(array('b', 'c'), $table->condition->getValues());
+
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`', $table->notin('a', array())->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testConditionLike()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` LIKE BINARY ?', $table->like('a', '%foobar%')->buildSelectQuery());
+        $this->assertEquals(array('%foobar%'), $table->condition->getValues());
+    }
+
+    public function testConditionILike()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` LIKE ?', $table->ilike('a', '%foobar%')->buildSelectQuery());
+        $this->assertEquals(array('%foobar%'), $table->condition->getValues());
+    }
+
+    public function testConditionGreaterThan()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` > ?', $table->gt('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionGreaterThanOrEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` >= ?', $table->gte('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionLowerThan()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` < ?', $table->lt('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionLowerThanOrEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` <= ?', $table->lte('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionIsNull()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` IS NOT NULL', $table->notNull('a')->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testCustomCondition()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE a=c AND `b` = ?', $table->addCondition('a=c')->eq('b', 4)->buildSelectQuery());
+        $this->assertEquals(array(4), $table->condition->getValues());
+    }
+
+    public function testOrConditions()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM `test`   WHERE `a` IS NOT NULL AND (`b` = ? OR `c` >= ?)', $table->notNull('a')->beginOr()->eq('b', 2)->gte('c', 5)->closeOr()->buildSelectQuery());
+        $this->assertEquals(array(2, 5), $table->condition->getValues());
+    }
+
+    public function testInsertUpdate()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a TEXT)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'b')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'c')));
+
+        $this->assertEquals(array(array('a' => 'b'), array('a' => 'c')), $this->db->table('foobar')->findAll());
+
+        $this->assertEquals(array('b', 'c'), $this->db->table('foobar')->findAllByColumn('a'));
+
+        $this->assertEquals(array('a' => 'b'), $this->db->table('foobar')->findOne());
+
+        $this->assertEquals('b', $this->db->table('foobar')->findOneColumn('a'));
+
+        $this->assertTrue($this->db->table('foobar')->exists());
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'c')->exists());
+        $this->assertFalse($this->db->table('foobar')->eq('a', 'e')->exists());
+
+        $this->assertEquals(2, $this->db->table('foobar')->count());
+        $this->assertEquals(1, $this->db->table('foobar')->eq('a', 'c')->count());
+        $this->assertEquals(0, $this->db->table('foobar')->eq('a', 'e')->count());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'c')->remove());
+        $this->assertFalse($this->db->table('foobar')->eq('a', 'e')->remove());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'b')->update(array('a' => 'test')));
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'lol')->update(array('a' => 'test')));
+
+        $this->assertNotEmpty($this->db->table('foobar')->eq('a', 'test')->findOne());
+        $this->assertNull($this->db->table('foobar')->eq('a', 'lol')->findOne());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'test')->save(array('a' => 'plop')));
+        $this->assertEquals(1, $this->db->table('foobar')->count());
+    }
+
+    public function testSumColumn()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (b FLOAT, c FLOAT)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('b' => 2, 'c' => 3.3)));
+
+        $this->assertTrue($this->db->table('foobar')->sumColumn('b', 2.5)->sumColumn('c', 3)->update());
+
+        $this->assertEquals(
+            array('b' => 4.5, 'c' => 6.3),
+            $this->db->table('foobar')->findOne()
+        );
+    }
+
+    public function testSum()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a INTEGER)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 2)));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 5)));
+        $this->assertEquals(7, $this->db->table('foobar')->sum('a'));
+    }
+
+    public function testLeftJoin()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE test1 (a INTEGER NOT NULL, foreign_key INTEGER NOT NULL)'));
+        $this->assertNotFalse($this->db->execute('CREATE TABLE test2 (id INTEGER NOT NULL, b INTEGER NOT NULL)'));
+
+        $this->assertTrue($this->db->table('test2')->insert(array('id' => 42, 'b' => 2)));
+        $this->assertTrue($this->db->table('test1')->insert(array('a' => 18, 'foreign_key' => 42)));
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test2')->columns('a', 'b')->eq('a', 18)->left('test1', 't1', 'foreign_key', 'test2', 'id')->findOne()
+        );
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test2')->columns('a', 'b')->eq('a', 18)->join('test1', 'foreign_key', 'id')->findOne()
+        );
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test1')->columns('a', 'b')->join('test2', 'id', 'foreign_key')->findOne()
+        );
+    }
+
+    public function testHashTable()
+    {
+        $this->assertNotFalse($this->db->execute(
+            'CREATE TABLE foobar (
+                column1 VARCHAR(20) NOT NULL UNIQUE,
+                column2 VARCHAR(20) default NULL
+            )'
+        ));
+
+        $this->assertTrue($this->db->table('foobar')->insert(array('column1' => 'option1', 'column2' => 'value1')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('column1' => 'option2', 'column2' => 'value2')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('column1' => 'option3', 'column2' => 'value3')));
+
+        $values = array(
+            'option1' => 'hey',
+            'option4' => 'ho',
+        );
+
+        $this->assertTrue($this->db->hashtable('foobar')->columnKey('column1')->columnValue('column2')->put($values));
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option4' => 'ho'),
+            $this->db->hashtable('foobar')->columnKey('column1')->columnValue('column2')->get('option2', 'option4')
+        );
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option3' => 'value3', 'option1' => 'hey', 'option4' => 'ho'),
+            $this->db->hashtable('foobar')->columnKey('column1')->columnValue('column2')->get()
+        );
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option3' => 'value3', 'option1' => 'hey', 'option4' => 'ho'),
+            $this->db->hashtable('foobar')->getAll('column1', 'column2')
+        );
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/PostgresDatabaseTest.php b/vendor/fguillot/picodb/tests/PostgresDatabaseTest.php
new file mode 100644
index 0000000..a99ea4a
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/PostgresDatabaseTest.php
@@ -0,0 +1,99 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Database;
+
+class PostgresDatabaseTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new Database(array('driver' => 'postgres', 'hostname' => 'localhost', 'username' => 'postgres', 'password' => 'postgres', 'database' => 'picodb'));
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS foobar');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+        $this->db->logQueries = true;
+    }
+
+    public function testEscapeIdentifer()
+    {
+        $this->assertEquals('"a"', $this->db->escapeIdentifier('a'));
+        $this->assertEquals('a.b', $this->db->escapeIdentifier('a.b'));
+        $this->assertEquals('"c"."a"', $this->db->escapeIdentifier('a', 'c'));
+        $this->assertEquals('a.b', $this->db->escapeIdentifier('a.b', 'c'));
+        $this->assertEquals('SELECT COUNT(*) FROM test', $this->db->escapeIdentifier('SELECT COUNT(*) FROM test'));
+        $this->assertEquals('SELECT COUNT(*) FROM test', $this->db->escapeIdentifier('SELECT COUNT(*) FROM test', 'b'));
+    }
+
+    public function testEscapeIdentiferList()
+    {
+        $this->assertEquals(array('"c"."a"', '"c"."b"'), $this->db->escapeIdentifierList(array('a', 'b'), 'c'));
+        $this->assertEquals(array('"a"', 'd.b'), $this->db->escapeIdentifierList(array('a', 'd.b')));
+    }
+
+    public function testThatPreparedStatementWorks()
+    {
+        $this->db->getConnection()->exec('CREATE TABLE foobar (id serial PRIMARY KEY, something TEXT)');
+        $this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+        $this->assertEquals(1, $this->db->getLastId());
+        $this->assertEquals('a', $this->db->execute('SELECT something FROM foobar WHERE something=?', array('a'))->fetchColumn());
+    }
+
+    /**
+     * @expectedException PicoDb\SQLException
+     */
+    public function testBadSQLQuery()
+    {
+        $this->db->execute('INSERT INTO foobar');
+    }
+
+    public function testDuplicateKey()
+    {
+        $this->db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+
+        $this->assertNotFalse($this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a')));
+        $this->assertFalse($this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a')));
+
+        $this->assertEquals(1, $this->db->execute('SELECT COUNT(*) FROM foobar WHERE something=?', array('a'))->fetchColumn());
+    }
+
+    public function testThatTransactionReturnsAValue()
+    {
+        $this->assertEquals('a', $this->db->transaction(function ($db) {
+
+            $db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+            $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+
+            return $db->execute('SELECT something FROM foobar WHERE something=?', array('a'))->fetchColumn();
+        }));
+    }
+
+    public function testThatTransactionReturnsTrue()
+    {
+        $this->assertTrue($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+            $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+        }));
+    }
+
+    /**
+     * @expectedException PicoDb\SQLException
+     */
+    public function testThatTransactionThrowExceptionWhenRollbacked()
+    {
+        $this->assertFalse($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABL');
+        }));
+    }
+
+    public function testThatTransactionReturnsFalseWhithDuplicateKey()
+    {
+        $this->assertFalse($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+            $r1 = $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+            $r2 = $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+            return $r1 && $r2;
+        }));
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/PostgresDriverTest.php b/vendor/fguillot/picodb/tests/PostgresDriverTest.php
new file mode 100644
index 0000000..ae81d08
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/PostgresDriverTest.php
@@ -0,0 +1,70 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Driver\Postgres;
+
+class PostgresDriverTest extends PHPUnit_Framework_TestCase
+{
+    private $driver;
+
+    public function setUp()
+    {
+        $this->driver = new Postgres(array('hostname' => 'localhost', 'username' => 'postgres', 'password' => 'postgres', 'database' => 'picodb'));
+        $this->driver->getConnection()->exec('DROP TABLE IF EXISTS foobar');
+        $this->driver->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+    }
+
+    public function tearDown()
+    {
+        $this->driver->closeConnection();
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    public function testMissingRequiredParameter()
+    {
+        new Postgres(array());
+    }
+
+    public function testDuplicateKeyError()
+    {
+        $this->assertFalse($this->driver->isDuplicateKeyError(1234));
+        $this->assertTrue($this->driver->isDuplicateKeyError(23505));
+        $this->assertTrue($this->driver->isDuplicateKeyError(23503));
+    }
+
+    public function testOperator()
+    {
+        $this->assertEquals('LIKE', $this->driver->getOperator('LIKE'));
+        $this->assertEquals('ILIKE', $this->driver->getOperator('ILIKE'));
+        $this->assertEquals('', $this->driver->getOperator('FOO'));
+    }
+
+    public function testSchemaVersion()
+    {
+        $this->assertEquals(0, $this->driver->getSchemaVersion());
+
+        $this->driver->setSchemaVersion(1);
+        $this->assertEquals(1, $this->driver->getSchemaVersion());
+
+        $this->driver->setSchemaVersion(42);
+        $this->assertEquals(42, $this->driver->getSchemaVersion());
+    }
+
+    public function testLastInsertId()
+    {
+        $this->assertEquals(0, $this->driver->getLastId());
+
+        $this->driver->getConnection()->exec('CREATE TABLE foobar (id serial PRIMARY KEY, something TEXT)');
+        $this->driver->getConnection()->exec('INSERT INTO foobar (something) VALUES (1)');
+
+        $this->assertEquals(1, $this->driver->getLastId());
+    }
+
+    public function testEscape()
+    {
+        $this->assertEquals('"foobar"', $this->driver->escape('foobar'));
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/PostgresSchemaTest.php b/vendor/fguillot/picodb/tests/PostgresSchemaTest.php
new file mode 100644
index 0000000..6395993
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/PostgresSchemaTest.php
@@ -0,0 +1,34 @@
+<?php
+
+require_once 'vendor/autoload.php';
+require_once __DIR__.'/SchemaFixture.php';
+
+class PostgresSchemaTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new PicoDb\Database(array('driver' => 'postgres', 'hostname' => 'localhost', 'username' => 'postgres', 'password' => 'postgres', 'database' => 'picodb'));
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test1');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test2');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+    }
+
+    public function testMigrations()
+    {
+        $this->assertTrue($this->db->schema()->check(2));
+        $this->assertEquals(2, $this->db->getDriver()->getSchemaVersion());
+    }
+
+    public function testFailedMigrations()
+    {
+        $this->assertEquals(0, $this->db->getDriver()->getSchemaVersion());
+        $this->assertFalse($this->db->schema()->check(3));
+        $this->assertEquals(0, $this->db->getDriver()->getSchemaVersion());
+
+        $logs = $this->db->getLogMessages();
+        $this->assertNotEmpty($logs);
+        $this->assertStringStartsWith('\Schema\version_3 => SQLSTATE[42601]: Syntax error', $logs[0]);
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/PostgresTableTest.php b/vendor/fguillot/picodb/tests/PostgresTableTest.php
new file mode 100644
index 0000000..4db37b0
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/PostgresTableTest.php
@@ -0,0 +1,312 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Database;
+use PicoDb\Table;
+
+class PostgresTableTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new Database(array('driver' => 'postgres', 'hostname' => 'localhost', 'username' => 'postgres', 'password' => 'postgres', 'database' => 'picodb'));
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test1');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS test2');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS foobar');
+        $this->db->getConnection()->exec('DROP TABLE IF EXISTS schema_version');
+        $this->db->logQueries = true;
+    }
+
+    public function testSelect()
+    {
+        $this->assertEquals('SELECT 1 FROM "test"', $this->db->table('test')->select(1)->buildSelectQuery());
+    }
+
+    public function testColumns()
+    {
+        $this->assertEquals('SELECT "a", "b" FROM "test"', $this->db->table('test')->columns('a', 'b')->buildSelectQuery());
+    }
+
+    public function testDistinct()
+    {
+        $this->assertEquals('SELECT DISTINCT "a", "b" FROM "test"', $this->db->table('test')->distinct('a', 'b')->buildSelectQuery());
+    }
+
+    public function testGroupBy()
+    {
+        $this->assertEquals('SELECT * FROM "test"   GROUP BY "a"', $this->db->table('test')->groupBy('a')->buildSelectQuery());
+    }
+
+    public function testOrderBy()
+    {
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC', $this->db->table('test')->asc('a')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC', $this->db->table('test')->orderBy('a', Table::SORT_ASC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC', $this->db->table('test')->desc('a', Table::SORT_DESC)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC', $this->db->table('test')->orderBy('a', Table::SORT_DESC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC, "b" ASC', $this->db->table('test')->asc('a')->asc('b')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC, "b" DESC', $this->db->table('test')->desc('a')->desc('b')->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC, "b" ASC', $this->db->table('test')->orderBy('a')->orderBy('b')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC, "b" DESC', $this->db->table('test')->orderBy('a', Table::SORT_DESC)->orderBy('b', Table::SORT_DESC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC, "b" ASC', $this->db->table('test')->desc('a')->asc('b')->buildSelectQuery());
+    }
+
+    public function testLimit()
+    {
+        $this->assertEquals('SELECT * FROM "test"      LIMIT 10', $this->db->table('test')->limit(10)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"', $this->db->table('test')->limit(null)->buildSelectQuery());
+    }
+
+    public function testOffset()
+    {
+        $this->assertEquals('SELECT * FROM "test"       OFFSET 0', $this->db->table('test')->offset(0)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"       OFFSET 10', $this->db->table('test')->offset(10)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"', $this->db->table('test')->limit(null)->buildSelectQuery());
+    }
+
+    public function testLimitOffset()
+    {
+        $this->assertEquals('SELECT * FROM "test"      LIMIT 2  OFFSET 0', $this->db->table('test')->offset(0)->limit(2)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"      LIMIT 5  OFFSET 10', $this->db->table('test')->offset(10)->limit(5)->buildSelectQuery());
+    }
+
+    public function testSubquery()
+    {
+        $this->assertEquals('SELECT (SELECT 1 FROM "foobar" WHERE 1=1) AS "b" FROM "test"', $this->db->table('test')->subquery('SELECT 1 FROM "foobar" WHERE 1=1', 'b')->buildSelectQuery());
+    }
+
+    public function testConditionEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" = ? AND "b" = ?', $table->eq('a', 2)->eq('b', 'foobar')->buildSelectQuery());
+        $this->assertEquals(array(2, 'foobar'), $table->condition->getValues());
+    }
+
+    public function testConditionNotEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" != ?', $table->neq('a', 2)->buildSelectQuery());
+        $this->assertEquals(array(2), $table->condition->getValues());
+    }
+
+    public function testConditionIn()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" IN (?, ?)', $table->in('a', array('b', 'c'))->buildSelectQuery());
+        $this->assertEquals(array('b', 'c'), $table->condition->getValues());
+
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"', $table->in('a', array())->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testConditionNotIn()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" NOT IN (?, ?)', $table->notin('a', array('b', 'c'))->buildSelectQuery());
+        $this->assertEquals(array('b', 'c'), $table->condition->getValues());
+
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"', $table->notin('a', array())->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testConditionLike()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" LIKE ?', $table->like('a', '%foobar%')->buildSelectQuery());
+        $this->assertEquals(array('%foobar%'), $table->condition->getValues());
+    }
+
+    public function testConditionILike()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" ILIKE ?', $table->ilike('a', '%foobar%')->buildSelectQuery());
+        $this->assertEquals(array('%foobar%'), $table->condition->getValues());
+    }
+
+    public function testConditionGreaterThan()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" > ?', $table->gt('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionGreaterThanOrEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" >= ?', $table->gte('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionLowerThan()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" < ?', $table->lt('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionLowerThanOrEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" <= ?', $table->lte('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionIsNull()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" IS NOT NULL', $table->notNull('a')->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testCustomCondition()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE a=c AND "b" = ?', $table->addCondition('a=c')->eq('b', 4)->buildSelectQuery());
+        $this->assertEquals(array(4), $table->condition->getValues());
+    }
+
+    public function testOrConditions()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" IS NOT NULL AND ("b" = ? OR "c" >= ?)', $table->notNull('a')->beginOr()->eq('b', 2)->gte('c', 5)->closeOr()->buildSelectQuery());
+        $this->assertEquals(array(2, 5), $table->condition->getValues());
+    }
+
+    public function testInsertUpdate()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a TEXT)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'b')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'c')));
+
+        $this->assertEquals(array(array('a' => 'b'), array('a' => 'c')), $this->db->table('foobar')->findAll());
+
+        $this->assertEquals(array('b', 'c'), $this->db->table('foobar')->findAllByColumn('a'));
+
+        $this->assertEquals(array('a' => 'b'), $this->db->table('foobar')->findOne());
+
+        $this->assertEquals('b', $this->db->table('foobar')->findOneColumn('a'));
+
+        $this->assertTrue($this->db->table('foobar')->exists());
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'c')->exists());
+        $this->assertFalse($this->db->table('foobar')->eq('a', 'e')->exists());
+
+        $this->assertEquals(2, $this->db->table('foobar')->count());
+        $this->assertEquals(1, $this->db->table('foobar')->eq('a', 'c')->count());
+        $this->assertEquals(0, $this->db->table('foobar')->eq('a', 'e')->count());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'c')->remove());
+        $this->assertFalse($this->db->table('foobar')->eq('a', 'e')->remove());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'b')->update(array('a' => 'test')));
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'lol')->update(array('a' => 'test')));
+
+        $this->assertNotEmpty($this->db->table('foobar')->eq('a', 'test')->findOne());
+        $this->assertNull($this->db->table('foobar')->eq('a', 'lol')->findOne());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'test')->save(array('a' => 'plop')));
+        $this->assertEquals(1, $this->db->table('foobar')->count());
+    }
+
+    public function testSumColumn()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (b REAL, c REAL)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('b' => 2, 'c' => 3.3)));
+
+        $this->assertTrue($this->db->table('foobar')->sumColumn('b', 2.5)->sumColumn('c', 3)->update());
+
+        $this->assertEquals(
+            array('b' => 4.5, 'c' => 6.3),
+            $this->db->table('foobar')->findOne()
+        );
+    }
+
+    public function testSum()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a INTEGER)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 2)));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 5)));
+        $this->assertEquals(7, $this->db->table('foobar')->sum('a'));
+    }
+
+    public function testLeftJoin()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE test1 (a INTEGER NOT NULL, foreign_key INTEGER NOT NULL)'));
+        $this->assertNotFalse($this->db->execute('CREATE TABLE test2 (id INTEGER NOT NULL, b INTEGER NOT NULL)'));
+
+        $this->assertTrue($this->db->table('test2')->insert(array('id' => 42, 'b' => 2)));
+        $this->assertTrue($this->db->table('test1')->insert(array('a' => 18, 'foreign_key' => 42)));
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test2')->columns('a', 'b')->eq('a', 18)->left('test1', 't1', 'foreign_key', 'test2', 'id')->findOne()
+        );
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test2')->columns('a', 'b')->eq('a', 18)->join('test1', 'foreign_key', 'id')->findOne()
+        );
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test1')->columns('a', 'b')->join('test2', 'id', 'foreign_key')->findOne()
+        );
+    }
+
+    public function testHashTable()
+    {
+        $this->assertNotFalse($this->db->execute(
+            'CREATE TABLE foobar (
+                column1 TEXT NOT NULL UNIQUE,
+                column2 TEXT default NULL
+            )'
+        ));
+
+        $this->assertTrue($this->db->table('foobar')->insert(array('column1' => 'option1', 'column2' => 'value1')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('column1' => 'option2', 'column2' => 'value2')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('column1' => 'option3', 'column2' => 'value3')));
+
+        $values = array(
+            'option1' => 'hey',
+            'option4' => 'ho',
+        );
+
+        $this->assertTrue($this->db->hashtable('foobar')->columnKey('column1')->columnValue('column2')->put($values));
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option4' => 'ho'),
+            $this->db->hashtable('foobar')->columnKey('column1')->columnValue('column2')->get('option2', 'option4')
+        );
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option3' => 'value3', 'option1' => 'hey', 'option4' => 'ho'),
+            $this->db->hashtable('foobar')->columnKey('column1')->columnValue('column2')->get()
+        );
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option3' => 'value3', 'option1' => 'hey', 'option4' => 'ho'),
+            $this->db->hashtable('foobar')->getAll('column1', 'column2')
+        );
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/SchemaFixture.php b/vendor/fguillot/picodb/tests/SchemaFixture.php
new file mode 100644
index 0000000..9e7f587
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/SchemaFixture.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Schema;
+
+function version_1($pdo)
+{
+    $pdo->exec('CREATE TABLE test1 (column1 TEXT)');
+}
+
+function version_2($pdo)
+{
+    $pdo->exec('CREATE TABLE test2 (column2 TEXT)');
+}
+
+function version_3($pdo)
+{
+    // Simulate an error
+    $pdo->exec('CREATE TABL');
+}
diff --git a/vendor/fguillot/picodb/tests/SqliteDatabaseTest.php b/vendor/fguillot/picodb/tests/SqliteDatabaseTest.php
new file mode 100644
index 0000000..4375798
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/SqliteDatabaseTest.php
@@ -0,0 +1,119 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Database;
+
+class SqliteDatabaseTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new Database(array('driver' => 'sqlite', 'filename' => ':memory:'));
+        $this->db->logQueries = true;
+    }
+
+    public function testEscapeIdentifer()
+    {
+        $this->assertEquals('"a"', $this->db->escapeIdentifier('a'));
+        $this->assertEquals('a.b', $this->db->escapeIdentifier('a.b'));
+        $this->assertEquals('"c"."a"', $this->db->escapeIdentifier('a', 'c'));
+        $this->assertEquals('a.b', $this->db->escapeIdentifier('a.b', 'c'));
+        $this->assertEquals('SELECT COUNT(*) FROM test', $this->db->escapeIdentifier('SELECT COUNT(*) FROM test'));
+        $this->assertEquals('SELECT COUNT(*) FROM test', $this->db->escapeIdentifier('SELECT COUNT(*) FROM test', 'b'));
+    }
+
+    public function testEscapeIdentiferList()
+    {
+        $this->assertEquals(array('"c"."a"', '"c"."b"'), $this->db->escapeIdentifierList(array('a', 'b'), 'c'));
+        $this->assertEquals(array('"a"', 'd.b'), $this->db->escapeIdentifierList(array('a', 'd.b')));
+    }
+
+    public function testThatPreparedStatementWorks()
+    {
+        $this->db->getConnection()->exec('CREATE TABLE foobar (id INTEGER PRIMARY KEY, something TEXT)');
+        $this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+        $this->assertEquals(1, $this->db->getLastId());
+        $this->assertEquals('a', $this->db->execute('SELECT something FROM foobar WHERE something=?', array('a'))->fetchColumn());
+    }
+
+    /**
+     * @expectedException PicoDb\SQLException
+     */
+    public function testBadSQLQuery()
+    {
+        $this->db->execute('INSERT INTO foobar');
+    }
+
+    public function testDuplicateKey()
+    {
+        $this->db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+
+        $this->assertNotFalse($this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a')));
+        $this->assertFalse($this->db->execute('INSERT INTO foobar (something) VALUES (?)', array('a')));
+
+        $this->assertEquals(1, $this->db->execute('SELECT COUNT(*) FROM foobar WHERE something=?', array('a'))->fetchColumn());
+    }
+
+    public function testThatTransactionReturnsAValue()
+    {
+        $this->assertEquals('a', $this->db->transaction(function ($db) {
+
+            $db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+            $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+
+            return $db->execute('SELECT something FROM foobar WHERE something=?', array('a'))->fetchColumn();
+        }));
+    }
+
+    public function testThatTransactionReturnsTrue()
+    {
+        $this->assertTrue($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+            $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+        }));
+    }
+
+    /**
+     * @expectedException PicoDb\SQLException
+     */
+    public function testThatTransactionThrowExceptionWhenRollbacked()
+    {
+        $this->assertFalse($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABL');
+        }));
+    }
+
+    public function testThatTransactionReturnsFalseWhithDuplicateKey()
+    {
+        $this->assertFalse($this->db->transaction(function ($db) {
+            $db->getConnection()->exec('CREATE TABLE foobar (something TEXT UNIQUE)');
+            $r1 = $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+            $r2 = $db->execute('INSERT INTO foobar (something) VALUES (?)', array('a'));
+            return $r1 && $r2;
+        }));
+    }
+
+    public function testGetInstance()
+    {
+        Database::setInstance('main', function () {
+            return new Database(array('driver' => 'sqlite', 'filename' => ':memory:'));
+        });
+
+        $instance1 = Database::getInstance('main');
+        $instance2 = Database::getInstance('main');
+
+        $this->assertInstanceOf('PicoDb\Database', $instance1);
+        $this->assertInstanceOf('PicoDb\Database', $instance2);
+        $this->assertTrue($instance1 === $instance2);
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    public function testGetMissingInstance()
+    {
+        Database::getInstance('notfound');
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/SqliteDriverTest.php b/vendor/fguillot/picodb/tests/SqliteDriverTest.php
new file mode 100644
index 0000000..4344d1e
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/SqliteDriverTest.php
@@ -0,0 +1,62 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Driver\Sqlite;
+
+class SqliteDriverTest extends PHPUnit_Framework_TestCase
+{
+    private $driver;
+
+    public function setUp()
+    {
+        $this->driver = new Sqlite(array('filename' => ':memory:'));
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    public function testMissingRequiredParameter()
+    {
+        new Sqlite(array());
+    }
+
+    public function testDuplicateKeyError()
+    {
+        $this->assertFalse($this->driver->isDuplicateKeyError(1234));
+        $this->assertTrue($this->driver->isDuplicateKeyError(23000));
+    }
+
+    public function testOperator()
+    {
+        $this->assertEquals('LIKE', $this->driver->getOperator('LIKE'));
+        $this->assertEquals('LIKE', $this->driver->getOperator('ILIKE'));
+        $this->assertEquals('', $this->driver->getOperator('FOO'));
+    }
+
+    public function testSchemaVersion()
+    {
+        $this->assertEquals(0, $this->driver->getSchemaVersion());
+
+        $this->driver->setSchemaVersion(1);
+        $this->assertEquals(1, $this->driver->getSchemaVersion());
+
+        $this->driver->setSchemaVersion(42);
+        $this->assertEquals(42, $this->driver->getSchemaVersion());
+    }
+
+    public function testLastInsertId()
+    {
+        $this->assertEquals(0, $this->driver->getLastId());
+
+        $this->driver->getConnection()->exec('CREATE TABLE foobar (id INTEGER PRIMARY KEY, something TEXT)');
+        $this->driver->getConnection()->exec('INSERT INTO foobar (something) VALUES (1)');
+
+        $this->assertEquals(1, $this->driver->getLastId());
+    }
+
+    public function testEscape()
+    {
+        $this->assertEquals('"foobar"', $this->driver->escape('foobar'));
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/SqliteSchemaTest.php b/vendor/fguillot/picodb/tests/SqliteSchemaTest.php
new file mode 100644
index 0000000..6ae60f7
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/SqliteSchemaTest.php
@@ -0,0 +1,30 @@
+<?php
+
+require_once 'vendor/autoload.php';
+require_once __DIR__.'/SchemaFixture.php';
+
+class SqliteSchemaTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new PicoDb\Database(array('driver' => 'sqlite', 'filename' => ':memory:'));
+    }
+
+    public function testMigrations()
+    {
+        $this->assertTrue($this->db->schema()->check(2));
+        $this->assertEquals(2, $this->db->getDriver()->getSchemaVersion());
+    }
+
+    public function testFailedMigrations()
+    {
+        $this->assertFalse($this->db->schema()->check(3));
+        $this->assertEquals(0, $this->db->getDriver()->getSchemaVersion());
+
+        $logs = $this->db->getLogMessages();
+        $this->assertNotEmpty($logs);
+        $this->assertEquals('\Schema\version_3 => SQLSTATE[HY000]: General error: 1 near "TABL": syntax error', $logs[0]);
+    }
+}
diff --git a/vendor/fguillot/picodb/tests/SqliteTableTest.php b/vendor/fguillot/picodb/tests/SqliteTableTest.php
new file mode 100644
index 0000000..5d10900
--- /dev/null
+++ b/vendor/fguillot/picodb/tests/SqliteTableTest.php
@@ -0,0 +1,327 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+use PicoDb\Database;
+use PicoDb\Table;
+
+class SqliteTableTest extends PHPUnit_Framework_TestCase
+{
+    private $db;
+
+    public function setUp()
+    {
+        $this->db = new Database(array('driver' => 'sqlite', 'filename' => ':memory:'));
+    }
+
+    public function testSelect()
+    {
+        $this->assertEquals('SELECT 1 FROM "test"', $this->db->table('test')->select(1)->buildSelectQuery());
+    }
+
+    public function testColumns()
+    {
+        $this->assertEquals('SELECT "a", "b" FROM "test"', $this->db->table('test')->columns('a', 'b')->buildSelectQuery());
+    }
+
+    public function testDistinct()
+    {
+        $this->assertEquals('SELECT DISTINCT "a", "b" FROM "test"', $this->db->table('test')->distinct('a', 'b')->buildSelectQuery());
+    }
+
+    public function testGroupBy()
+    {
+        $this->assertEquals('SELECT * FROM "test"   GROUP BY "a"', $this->db->table('test')->groupBy('a')->buildSelectQuery());
+    }
+
+    public function testOrderBy()
+    {
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC', $this->db->table('test')->asc('a')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC', $this->db->table('test')->orderBy('a', Table::SORT_ASC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC', $this->db->table('test')->desc('a', Table::SORT_DESC)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC', $this->db->table('test')->orderBy('a', Table::SORT_DESC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC, "b" ASC', $this->db->table('test')->asc('a')->asc('b')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC, "b" DESC', $this->db->table('test')->desc('a')->desc('b')->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" ASC, "b" ASC', $this->db->table('test')->orderBy('a')->orderBy('b')->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC, "b" DESC', $this->db->table('test')->orderBy('a', Table::SORT_DESC)->orderBy('b', Table::SORT_DESC)->buildSelectQuery());
+
+        $this->assertEquals('SELECT * FROM "test"     ORDER BY "a" DESC, "b" ASC', $this->db->table('test')->desc('a')->asc('b')->buildSelectQuery());
+    }
+
+    public function testLimit()
+    {
+        $this->assertEquals('SELECT * FROM "test"      LIMIT 10', $this->db->table('test')->limit(10)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"', $this->db->table('test')->limit(null)->buildSelectQuery());
+    }
+
+    public function testOffset()
+    {
+        $this->assertEquals('SELECT * FROM "test"       OFFSET 0', $this->db->table('test')->offset(0)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"       OFFSET 10', $this->db->table('test')->offset(10)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"', $this->db->table('test')->limit(null)->buildSelectQuery());
+    }
+
+    public function testLimitOffset()
+    {
+        $this->assertEquals('SELECT * FROM "test"      LIMIT 2  OFFSET 0', $this->db->table('test')->offset(0)->limit(2)->buildSelectQuery());
+        $this->assertEquals('SELECT * FROM "test"      LIMIT 5  OFFSET 10', $this->db->table('test')->offset(10)->limit(5)->buildSelectQuery());
+    }
+
+    public function testSubquery()
+    {
+        $this->assertEquals('SELECT (SELECT 1 FROM "foobar" WHERE 1=1) AS "b" FROM "test"', $this->db->table('test')->subquery('SELECT 1 FROM "foobar" WHERE 1=1', 'b')->buildSelectQuery());
+    }
+
+    public function testConditionEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" = ? AND "b" = ?', $table->eq('a', 2)->eq('b', 'foobar')->buildSelectQuery());
+        $this->assertEquals(array(2, 'foobar'), $table->condition->getValues());
+    }
+
+    public function testConditionNotEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" != ?', $table->neq('a', 2)->buildSelectQuery());
+        $this->assertEquals(array(2), $table->condition->getValues());
+    }
+
+    public function testConditionIn()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" IN (?, ?)', $table->in('a', array('b', 'c'))->buildSelectQuery());
+        $this->assertEquals(array('b', 'c'), $table->condition->getValues());
+
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"', $table->in('a', array())->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testConditionNotIn()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" NOT IN (?, ?)', $table->notin('a', array('b', 'c'))->buildSelectQuery());
+        $this->assertEquals(array('b', 'c'), $table->condition->getValues());
+
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"', $table->notin('a', array())->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testConditionLike()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" LIKE ?', $table->like('a', '%foobar%')->buildSelectQuery());
+        $this->assertEquals(array('%foobar%'), $table->condition->getValues());
+    }
+
+    public function testConditionILike()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" LIKE ?', $table->ilike('a', '%foobar%')->buildSelectQuery());
+        $this->assertEquals(array('%foobar%'), $table->condition->getValues());
+    }
+
+    public function testConditionGreaterThan()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" > ?', $table->gt('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionGreaterThanOrEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" >= ?', $table->gte('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionLowerThan()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" < ?', $table->lt('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionLowerThanOrEqual()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" <= ?', $table->lte('a', 5)->buildSelectQuery());
+        $this->assertEquals(array(5), $table->condition->getValues());
+    }
+
+    public function testConditionIsNull()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" IS NOT NULL', $table->notNull('a')->buildSelectQuery());
+        $this->assertEquals(array(), $table->condition->getValues());
+    }
+
+    public function testCustomCondition()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE a=c AND "b" = ?', $table->addCondition('a=c')->eq('b', 4)->buildSelectQuery());
+        $this->assertEquals(array(4), $table->condition->getValues());
+    }
+
+    public function testOrConditions()
+    {
+        $table = $this->db->table('test');
+
+        $this->assertEquals('SELECT * FROM "test"   WHERE "a" IS NOT NULL AND ("b" = ? OR "c" >= ?)', $table->notNull('a')->beginOr()->eq('b', 2)->gte('c', 5)->closeOr()->buildSelectQuery());
+        $this->assertEquals(array(2, 5), $table->condition->getValues());
+    }
+
+    public function testInsertUpdate()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a TEXT)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'b')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'c')));
+
+        $this->assertEquals(array(array('a' => 'b'), array('a' => 'c')), $this->db->table('foobar')->findAll());
+
+        $this->assertEquals(array('b', 'c'), $this->db->table('foobar')->findAllByColumn('a'));
+
+        $this->assertEquals(array('a' => 'b'), $this->db->table('foobar')->findOne());
+
+        $this->assertEquals('b', $this->db->table('foobar')->findOneColumn('a'));
+
+        $this->assertTrue($this->db->table('foobar')->exists());
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'c')->exists());
+        $this->assertFalse($this->db->table('foobar')->eq('a', 'e')->exists());
+
+        $this->assertEquals(2, $this->db->table('foobar')->count());
+        $this->assertEquals(1, $this->db->table('foobar')->eq('a', 'c')->count());
+        $this->assertEquals(0, $this->db->table('foobar')->eq('a', 'e')->count());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'c')->remove());
+        $this->assertFalse($this->db->table('foobar')->eq('a', 'e')->remove());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'b')->update(array('a' => 'test')));
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'lol')->update(array('a' => 'test')));
+
+        $this->assertNotEmpty($this->db->table('foobar')->eq('a', 'test')->findOne());
+        $this->assertNull($this->db->table('foobar')->eq('a', 'lol')->findOne());
+
+        $this->assertTrue($this->db->table('foobar')->eq('a', 'test')->save(array('a' => 'plop')));
+        $this->assertEquals(1, $this->db->table('foobar')->count());
+    }
+
+    public function testSumColumn()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (b REAL, c REAL)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('b' => 2, 'c' => 3.3)));
+
+        $this->assertTrue($this->db->table('foobar')->sumColumn('b', 2.5)->sumColumn('c', 3)->update());
+
+        $this->assertEquals(
+            array('b' => 4.5, 'c' => 6.3),
+            $this->db->table('foobar')->findOne()
+        );
+    }
+
+    public function testCallback()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a TEXT)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'b')));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 'c')));
+
+        $func = function (array $records) {
+            return array('test');
+        };
+
+        $this->assertEquals(array('test'), $this->db->table('foobar')->callback($func)->findAll());
+        $this->assertEquals(array('plop'), $this->db->table('foobar')->callback(array($this, 'myCallback'))->findAll());
+    }
+
+    public function myCallback(array $records)
+    {
+        $this->assertEquals(array(array('a' => 'b'), array('a' => 'c')), $records);
+        return array('plop');
+    }
+
+    public function testSum()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE foobar (a INTEGER)'));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 2)));
+        $this->assertTrue($this->db->table('foobar')->insert(array('a' => 5)));
+        $this->assertEquals(7, $this->db->table('foobar')->sum('a'));
+    }
+
+    public function testLeftJoin()
+    {
+        $this->assertNotFalse($this->db->execute('CREATE TABLE test1 (a INTEGER NOT NULL, foreign_key INTEGER NOT NULL)'));
+        $this->assertNotFalse($this->db->execute('CREATE TABLE test2 (id INTEGER NOT NULL, b INTEGER NOT NULL)'));
+
+        $this->assertTrue($this->db->table('test2')->insert(array('id' => 42, 'b' => 2)));
+        $this->assertTrue($this->db->table('test1')->insert(array('a' => 18, 'foreign_key' => 42)));
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test2')->columns('a', 'b')->eq('a', 18)->left('test1', 't1', 'foreign_key', 'test2', 'id')->findOne()
+        );
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test2')->columns('a', 'b')->eq('a', 18)->join('test1', 'foreign_key', 'id')->findOne()
+        );
+
+        $this->assertEquals(
+            array('a' => 18, 'b' => 2),
+            $this->db->table('test1')->columns('a', 'b')->join('test2', 'id', 'foreign_key')->findOne()
+        );
+    }
+
+    public function testHashTable()
+    {
+        $this->assertNotFalse($this->db->execute(
+            'CREATE TABLE toto (
+                column1 TEXT NOT NULL UNIQUE,
+                column2 TEXT default NULL
+            )'
+        ));
+
+        $this->assertTrue($this->db->table('toto')->insert(array('column1' => 'option1', 'column2' => 'value1')));
+        $this->assertTrue($this->db->table('toto')->insert(array('column1' => 'option2', 'column2' => 'value2')));
+        $this->assertTrue($this->db->table('toto')->insert(array('column1' => 'option3', 'column2' => 'value3')));
+
+        $values = array(
+            'option1' => 'hey',
+            'option4' => 'ho',
+        );
+
+        $this->assertTrue($this->db->hashtable('toto')->columnKey('column1')->columnValue('column2')->put($values));
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option4' => 'ho'),
+            $this->db->hashtable('toto')->columnKey('column1')->columnValue('column2')->get('option2', 'option4')
+        );
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option3' => 'value3', 'option1' => 'hey', 'option4' => 'ho'),
+            $this->db->hashtable('toto')->columnKey('column1')->columnValue('column2')->get()
+        );
+
+        $this->assertEquals(
+            array('option2' => 'value2', 'option3' => 'value3', 'option1' => 'hey', 'option4' => 'ho'),
+            $this->db->hashtable('toto')->getAll('column1', 'column2')
+        );
+    }
+}