diff --git a/common.php b/common.php
index c0ce756..9ee3f11 100644
--- a/common.php
+++ b/common.php
@@ -67,6 +67,22 @@ PicoDb\Database::bootstrap('db', function() {
         return $db;
     }
     else {
-        die('Unable to migrate database schema.');
+        $errors = $db->getLogMessages();
+
+        $pdo = new \PDO('sqlite::memory:');
+        $result = $pdo->query('select sqlite_version()', PDO::FETCH_COLUMN, 0);
+        $sqlite_version = $result ? $result->fetch() : '?';
+
+        $html = 'Unable to migrate the database schema, <strong>please copy and paste this message and create a bug report:</strong><hr/>';
+        $html .= '<pre><code>';
+        $html .= (isset($errors[0]) ? $errors[0] : 'Unknown SQL error').PHP_EOL.PHP_EOL;
+        $html .= '- PHP version: '.phpversion().PHP_EOL;
+        $html .= '- SAPI: '.php_sapi_name().PHP_EOL;
+        $html .= '- PDO Sqlite version: '.phpversion('pdo_sqlite').PHP_EOL;
+        $html .= '- Sqlite version: '.$sqlite_version.PHP_EOL;
+        $html .= '- OS: '.php_uname();
+        $html .= '</code></pre>';
+
+        die($html);
     }
 });
diff --git a/vendor/PicoDb/Database.php b/vendor/PicoDb/Database.php
index 86f5fe3..4d7b703 100644
--- a/vendor/PicoDb/Database.php
+++ b/vendor/PicoDb/Database.php
@@ -19,7 +19,17 @@ class Database
 
             case 'sqlite':
                 require_once __DIR__.'/Drivers/Sqlite.php';
-                $this->pdo = new Sqlite($settings['filename']);
+                $this->pdo = new Sqlite($settings);
+                break;
+
+            case 'mysql':
+                require_once __DIR__.'/Drivers/Mysql.php';
+                $this->pdo = new Mysql($settings);
+                break;
+
+            case 'postgres':
+                require_once __DIR__.'/Drivers/Postgres.php';
+                $this->pdo = new Postgres($settings);
                 break;
 
             default:
diff --git a/vendor/PicoDb/Drivers/Mysql.php b/vendor/PicoDb/Drivers/Mysql.php
new file mode 100644
index 0000000..22277a0
--- /dev/null
+++ b/vendor/PicoDb/Drivers/Mysql.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace PicoDb;
+
+class Mysql extends \PDO {
+
+    private $schema_table = 'schema_version';
+
+
+    public function __construct(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'];
+        $options = array(
+            \PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES '.$settings['charset']
+        );
+
+        parent::__construct($dsn, $settings['username'], $settings['password'], $options);
+
+        if (isset($settings['schema_table'])) {
+            $this->schema_table = $settings['schema_table'];
+        }
+    }
+
+
+    public function getSchemaVersion()
+    {
+        $this->exec("CREATE TABLE IF NOT EXISTS `".$this->schema_table."` (`version` INT DEFAULT '0')");
+
+        $rq = $this->prepare('SELECT `version` FROM `'.$this->schema_table.'`');
+        $rq->execute();
+        $result = $rq->fetch(\PDO::FETCH_ASSOC);
+
+        if (isset($result['version'])) {
+            return (int) $result['version'];
+        }
+        else {
+            $this->exec('INSERT INTO `'.$this->schema_table.'` VALUES(0)');
+        }
+
+        return 0;
+    }
+
+
+    public function setSchemaVersion($version)
+    {
+        $rq = $this->prepare('UPDATE `'.$this->schema_table.'` SET `version`=?');
+        $rq->execute(array($version));
+    }
+
+
+    public function getLastId()
+    {
+        return $this->lastInsertId();
+    }
+
+
+    public function escapeIdentifier($value)
+    {
+        if (strpos($value, '.') !== false) return $value;
+        return '`'.$value.'`';
+    }
+}
\ No newline at end of file
diff --git a/vendor/PicoDb/Drivers/Postgres.php b/vendor/PicoDb/Drivers/Postgres.php
new file mode 100644
index 0000000..641727f
--- /dev/null
+++ b/vendor/PicoDb/Drivers/Postgres.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace PicoDb;
+
+class Postgres extends \PDO {
+
+    private $schema_table = 'schema_version';
+
+
+    public function __construct(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='.$settings['database'];
+
+        parent::__construct($dsn, $settings['username'], $settings['password']);
+
+        if (isset($settings['schema_table'])) {
+            $this->schema_table = $settings['schema_table'];
+        }
+    }
+
+
+    public function getSchemaVersion()
+    {
+        $this->exec("CREATE TABLE IF NOT EXISTS ".$this->schema_table." (version SMALLINT DEFAULT 0)");
+
+        $rq = $this->prepare('SELECT version FROM '.$this->schema_table.'');
+        $rq->execute();
+        $result = $rq->fetch(\PDO::FETCH_ASSOC);
+
+        if (isset($result['version'])) {
+            return (int) $result['version'];
+        }
+        else {
+            $this->exec('INSERT INTO '.$this->schema_table.' VALUES(0)');
+        }
+
+        return 0;
+    }
+
+
+    public function setSchemaVersion($version)
+    {
+        $rq = $this->prepare('UPDATE '.$this->schema_table.' 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;
+    }
+}
\ No newline at end of file
diff --git a/vendor/PicoDb/Drivers/Sqlite.php b/vendor/PicoDb/Drivers/Sqlite.php
index 6555e73..83b61c4 100644
--- a/vendor/PicoDb/Drivers/Sqlite.php
+++ b/vendor/PicoDb/Drivers/Sqlite.php
@@ -5,9 +5,19 @@ namespace PicoDb;
 class Sqlite extends \PDO {
 
 
-    public function __construct($filename)
+    public function __construct(array $settings)
     {
-        parent::__construct('sqlite:'.$filename);
+        $required_atttributes = array(
+            'filename',
+        );
+
+        foreach ($required_atttributes as $attribute) {
+            if (! isset($settings[$attribute])) {
+                throw new \LogicException('This configuration parameter is missing: "'.$attribute.'"');
+            }
+        }
+
+        parent::__construct('sqlite:'.$settings['filename']);
 
         $this->exec('PRAGMA foreign_keys = ON');
     }
@@ -20,8 +30,7 @@ class Sqlite extends \PDO {
         $result = $rq->fetch(\PDO::FETCH_ASSOC);
 
         if (isset($result['user_version'])) {
-
-            return $result['user_version'];
+            return (int) $result['user_version'];
         }
 
         return 0;
diff --git a/vendor/PicoDb/Schema.php b/vendor/PicoDb/Schema.php
index 2f52b84..a054ac0 100644
--- a/vendor/PicoDb/Schema.php
+++ b/vendor/PicoDb/Schema.php
@@ -18,7 +18,6 @@ class Schema
         $current_version = $this->db->getConnection()->getSchemaVersion();
 
         if ($current_version < $last_version) {
-
             return $this->migrateTo($current_version, $last_version);
         }
 
@@ -37,20 +36,15 @@ class Schema
                 $function_name = '\Schema\version_'.$i;
 
                 if (function_exists($function_name)) {
-
                     call_user_func($function_name, $this->db->getConnection());
                     $this->db->getConnection()->setSchemaVersion($i);
                 }
-                else {
-
-                    throw new \LogicException('To execute a database migration, you need to create this function: "'.$function_name.'".');
-                }
             }
 
             $this->db->closeTransaction();
         }
         catch (\PDOException $e) {
-
+            $this->db->setLogMessage($function_name.' => '.$e->getMessage());
             $this->db->cancelTransaction();
             return false;
         }
diff --git a/vendor/PicoDb/Table.php b/vendor/PicoDb/Table.php
index 4cdf35f..b333feb 100644
--- a/vendor/PicoDb/Table.php
+++ b/vendor/PicoDb/Table.php
@@ -4,6 +4,9 @@ namespace PicoDb;
 
 class Table
 {
+    const SORT_ASC = 'ASC';
+    const SORT_DESC = 'DESC';
+
     private $table_name = '';
     private $sql_limit = '';
     private $sql_offset = '';
@@ -67,12 +70,7 @@ class Table
 
         $result = $this->db->execute($sql, $values);
 
-        if ($result !== false && $result->rowCount() > 0) {
-
-            return true;
-        }
-
-        return false;
+        return $result !== false && $result->rowCount() > 0;
     }
 
 
@@ -104,7 +102,9 @@ class Table
             $this->conditions()
         );
 
-        return false !== $this->db->execute($sql, $this->values);
+        $result = $this->db->execute($sql, $this->values);
+
+        return $result !== false && $result->rowCount() > 0;
     }
 
 
@@ -260,10 +260,10 @@ class Table
     }
 
 
-    public function orderBy($column, $order = 'ASC')
+    public function orderBy($column, $order = self::SORT_ASC)
     {
         $order = strtoupper($order);
-        $order = $order === 'ASC' || $order === 'DESC' ? $order : 'ASC';
+        $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;
@@ -279,10 +279,10 @@ class Table
     public function asc($column)
     {
         if ($this->sql_order === '') {
-            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' ASC';
+            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.self::SORT_ASC;
         }
         else {
-            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' ASC';
+            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.self::SORT_ASC;
         }
 
         return $this;
@@ -292,10 +292,10 @@ class Table
     public function desc($column)
     {
         if ($this->sql_order === '') {
-            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' DESC';
+            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.self::SORT_DESC;
         }
         else {
-            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' DESC';
+            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.self::SORT_DESC;
         }
 
         return $this;
@@ -377,6 +377,12 @@ class Table
                 $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));