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<?php
/**
*
* @package Nested Set
* @copyright (c) 2013 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
interface phpbb_nestedset_item_interface
{
/**
* Returns the ID of the item
*
* @return int
*/
public function get_item_id();
/**
* Returns the ID of the parent item
*
* @return int
*/
public function get_parent_id();
/**
* Returns a serialized or empty string with the data of the item's parents
*
* @return string
*/
public function get_item_parents_data();
/**
* Returns the left_id of the item
*
* @return int
*/
public function get_left_id();
/**
* Returns the right_id of the item
*
* @return int
*/
public function get_right_id();
/**
* Does the item have sub-items?
*
* @return bool
*/
public function has_children();
}
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