2015-08-05 01:01:21 +02:00
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<?php
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namespace Model\Group;
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use PicoDb\Database;
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/**
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* Get all groups
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*
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* @return array
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*/
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function get_all()
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{
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2015-08-15 03:33:39 +02:00
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return Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('groups')
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->orderBy('title')
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->findAll();
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}
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/**
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* Get assoc array of group ids with assigned feeds ids
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*
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* @return array
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*/
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function get_map()
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{
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2015-08-15 03:33:39 +02:00
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$result = Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('feeds_groups')
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->findAll();
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// TODO: add PDO::FETCH_COLUMN|PDO::FETCH_GROUP to picodb and use it instead
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// of the following lines
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$map = array();
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foreach ($result as $row) {
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$group_id = $row['group_id'];
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$feed_id = $row['feed_id'];
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if (isset($map[$group_id])) {
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$map[$group_id][] = $feed_id;
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2016-04-18 01:44:45 +02:00
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} else {
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2015-08-05 01:01:21 +02:00
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$map[$group_id] = array($feed_id);
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}
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}
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return $map;
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}
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2015-12-24 15:34:55 +01:00
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/**
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* Get assoc array of feeds ids with assigned groups ids
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*
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* @return array
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*/
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function get_feeds_map()
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{
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$result = Database::getInstance('db')
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->table('feeds_groups')
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->findAll();
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$map = array();
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foreach ($result as $row) {
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$map[$row['feed_id']][] = $row['group_id'];
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}
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return $map;
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}
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2015-08-05 01:01:21 +02:00
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/**
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* Get all groups assigned to feed
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*
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* @param integer $feed_id id of the feed
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* @return array
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*/
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function get_feed_group_ids($feed_id)
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{
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2015-08-15 03:33:39 +02:00
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return Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('groups')
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->join('feeds_groups', 'group_id', 'id')
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->eq('feed_id', $feed_id)
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->findAllByColumn('id');
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}
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2016-04-18 01:34:54 +02:00
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function get_feed_groups($feed_id)
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{
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return Database::getInstance('db')
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->table('groups')
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->columns('groups.id', 'groups.title')
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->join('feeds_groups', 'group_id', 'id')
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->eq('feed_id', $feed_id)
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->findAll();
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}
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2015-08-05 01:01:21 +02:00
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/**
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* Get the id of a group
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*
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* @param string $title group name
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* @return mixed group id or false if not found
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*/
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function get_group_id($title)
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{
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2015-08-15 03:33:39 +02:00
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return Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('groups')
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->eq('title', $title)
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->findOneColumn('id');
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}
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/**
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* Get all feed ids assigned to a group
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*
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2015-08-15 04:08:04 +02:00
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* @param integer $group_id
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2015-08-05 01:01:21 +02:00
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* @return array
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*/
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function get_feeds_by_group($group_id)
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{
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2015-08-15 03:33:39 +02:00
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return Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('feeds_groups')
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->eq('group_id', $group_id)
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->findAllByColumn('feed_id');
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}
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/**
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* Add a group to the Database
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*
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* Returns either the id of the new group or the id of an existing group with
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* the same name
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*
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* @param string $title group name
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* @return mixed id of the created group or false on error
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*/
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function create($title)
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{
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$data = array('title' => $title);
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// check if the group already exists
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$group_id = get_group_id($title);
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// create group if missing
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if ($group_id === false) {
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2016-04-18 01:44:45 +02:00
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Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('groups')
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->insert($data);
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$group_id = get_group_id($title);
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}
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return $group_id;
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}
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/**
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* Add groups to feed
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*
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* @param integer $feed_id feed id
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* @param array $group_ids array of group ids
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* @return boolean true on success, false on error
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*/
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2016-04-18 01:34:54 +02:00
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function add($feed_id, array $group_ids)
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2015-08-05 01:01:21 +02:00
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{
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2016-04-18 01:44:45 +02:00
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foreach ($group_ids as $group_id) {
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2015-08-05 01:01:21 +02:00
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$data = array('feed_id' => $feed_id, 'group_id' => $group_id);
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2015-08-15 03:33:39 +02:00
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$result = Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('feeds_groups')
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->insert($data);
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if ($result === false) {
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return false;
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}
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}
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return true;
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}
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/**
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* Remove groups from feed
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*
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* @param integer $feed_id id of the feed
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* @param array $group_ids array of group ids
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* @return boolean true on success, false on error
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*/
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2016-04-18 01:34:54 +02:00
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function remove($feed_id, array $group_ids)
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2015-08-05 01:01:21 +02:00
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{
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2015-12-13 15:16:47 +01:00
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$result = Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('feeds_groups')
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->eq('feed_id', $feed_id)
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->in('group_id', $group_ids)
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->remove();
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2015-12-13 15:16:47 +01:00
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// remove empty groups
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if ($result) {
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purge_groups();
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}
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return $result;
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}
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/**
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* Remove all groups from feed
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*
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* @param integer $feed_id id of the feed
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* @return boolean true on success, false on error
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*/
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function remove_all($feed_id)
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{
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$result = Database::getInstance('db')
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->table('feeds_groups')
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->eq('feed_id', $feed_id)
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->remove();
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// remove empty groups
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if ($result) {
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purge_groups();
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}
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return $result;
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2015-08-05 01:01:21 +02:00
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}
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/**
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* Purge orphaned groups from database
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*/
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function purge_groups()
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{
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2015-08-15 03:33:39 +02:00
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$groups = Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('groups')
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->join('feeds_groups', 'group_id', 'id')
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2016-04-18 01:34:54 +02:00
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->isNull('feed_id')
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2015-08-05 01:01:21 +02:00
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->findAllByColumn('id');
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if (! empty($groups)) {
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2015-08-15 03:33:39 +02:00
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Database::getInstance('db')
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2015-08-05 01:01:21 +02:00
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->table('groups')
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->in('id', $groups)
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->remove();
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}
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}
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/**
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* Update feed group associations
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*
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* @param integer $feed_id id of the feed to update
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* @param array $group_ids valid groups ids for feed
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* @param string $create_group group to create and assign to feed
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* @return boolean
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*/
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2016-04-18 01:34:54 +02:00
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function update_feed_groups($feed_id, array $group_ids, $create_group = '')
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2015-08-05 01:01:21 +02:00
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{
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if ($create_group !== '') {
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$id = create($create_group);
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if ($id === false) {
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return false;
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}
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if (! in_array($id, $group_ids)) {
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$group_ids[] = $id;
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}
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}
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$assigned = get_feed_group_ids($feed_id);
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$superfluous = array_diff($assigned, $group_ids);
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$missing = array_diff($group_ids, $assigned);
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// remove no longer assigned groups from feed
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if (! empty($superfluous) && ! remove($feed_id, $superfluous)) {
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return false;
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}
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// add requested groups to feed
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if (! empty($missing) && ! add($feed_id, $missing)) {
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return false;
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}
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return true;
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}
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