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117 lines
2.2 KiB
PHP
117 lines
2.2 KiB
PHP
<?php
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/**
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*
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* @package Nested Set
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* @copyright (c) 2013 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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class phpbb_nestedset_forum extends phpbb_nestedset_base
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{
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/** @var phpbb_db_driver */
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protected $db;
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/** @var phpbb_lock_db */
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protected $lock;
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/** @var String */
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protected $table_name;
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/** @var String */
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protected $item_class = 'phpbb_nestedset_item_forum';
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/**
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* Column names in the table
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* @var String
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*/
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protected $columns_item_id = 'forum_id';
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protected $columns_item_parents = 'forum_parents';
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/**
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* Additional SQL restrictions
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* Allows to have multiple nestedsets in one table
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* Columns must be prefixed with %1$s
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* @var String
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*/
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protected $sql_where = '';
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/**
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* List of item properties to be cached in $item_parents
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* @var array
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*/
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protected $item_basic_data = array('forum_id', 'forum_name', 'forum_type');
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/**
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* Construct
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*
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* @param phpbb_db_driver $db Database connection
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* @param phpbb_lock_db $lock Lock class used to lock the table when moving forums around
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* @param string $table_name Table name
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*/
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public function __construct(phpbb_db_driver $db, phpbb_lock_db $lock, $table_name)
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{
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$this->db = $db;
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$this->lock = $lock;
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$this->table_name = $table_name;
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}
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/**
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* @inheritdoc
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*/
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public function move_children(array $current_parent, array $new_parent)
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{
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while (!$this->lock->acquire())
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{
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// Retry after 0.2 seconds
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usleep(200 * 1000);
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}
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try
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{
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$return = parent::move_children($current_parent, $new_parent);
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}
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catch (phpbb_nestedset_exception $e)
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{
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$this->lock->release();
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throw new phpbb_nestedset_exception('FORUM_NESTEDSET_' . $e->getMessage());
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}
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$this->lock->release();
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return $return;
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}
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/**
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* @inheritdoc
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*/
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public function set_parent(array $item, array $new_parent)
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{
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while (!$this->lock->acquire())
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{
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// Retry after 0.2 seconds
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usleep(200 * 1000);
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}
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try
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{
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$return = parent::set_parent($item, $new_parent);
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}
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catch (phpbb_nestedset_exception $e)
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{
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$this->lock->release();
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throw new phpbb_nestedset_exception('FORUM_NESTEDSET_' . $e->getMessage());
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}
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$this->lock->release();
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return $return;
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}
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}
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