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<?php
/**
*
* @package phpBB3
* @copyright (c) 2012 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
namespace phpbb\groupposition;
/**
* Interface to manage group positions in various places of phpbb
*
* The interface provides simple methods to add, delete and move a group
*
* @package phpBB3
*/
interface groupposition_interface
{
/**
* Returns the value for a given group, if the group exists.
* @param int $group_id group_id of the group to be selected
* @return int position of the group
*/
public function get_group_value($group_id);
/**
* Get number of groups displayed
*
* @return int value of the last item displayed
*/
public function get_group_count();
/**
* Addes a group by group_id
*
* @param int $group_id group_id of the group to be added
* @return bool True if the group was added successfully
*/
public function add_group($group_id);
/**
* Deletes a group by group_id
*
* @param int $group_id group_id of the group to be deleted
* @param bool $skip_group Skip setting the value for this group, to save the query, when you need to update it anyway.
* @return bool True if the group was deleted successfully
*/
public function delete_group($group_id, $skip_group = false);
/**
* Moves a group up by group_id
*
* @param int $group_id group_id of the group to be moved
* @return bool True if the group was moved successfully
*/
public function move_up($group_id);
/**
* Moves a group down by group_id
*
* @param int $group_id group_id of the group to be moved
* @return bool True if the group was moved successfully
*/
public function move_down($group_id);
/**
* Moves a group up/down
*
* @param int $group_id group_id of the group to be moved
* @param int $delta number of steps:
* - positive = move up
* - negative = move down
* @return bool True if the group was moved successfully
*/
public function move($group_id, $delta);
}
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