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<?php | |
/** | |
* | |
* This file is part of the phpBB Forum Software package. | |
* | |
* @copyright (c) phpBB Limited <https://www.phpbb.com> | |
* @license GNU General Public License, version 2 (GPL-2.0) | |
* | |
* For full copyright and license information, please see | |
* the docs/CREDITS.txt file. | |
* | |
*/ | |
namespace phpbb\tree; | |
interface tree_interface | |
{ | |
/** | |
* Inserts an item into the database table and into the tree. | |
* | |
* @param array $additional_data The item to be added | |
* @return array Array with item data as set in the database | |
*/ | |
public function insert(array $additional_data); | |
/** | |
* Delete an item from the tree and from the database table | |
* | |
* Also deletes the subtree from the tree and from the database table | |
* | |
* @param int $item_id The item to be deleted | |
* @return array Item ids that have been deleted | |
*/ | |
public function delete($item_id); | |
/** | |
* Move an item by a given delta | |
* | |
* An item is only moved up/down within the same parent. If the delta is | |
* larger then the number of children, the item is moved to the top/bottom | |
* of the list of children within this parent. | |
* | |
* @param int $item_id The item to be moved | |
* @param int $delta Number of steps to move this item, < 0 => down, > 0 => up | |
* @return bool True if the item was moved | |
*/ | |
public function move($item_id, $delta); | |
/** | |
* Move an item down by 1 | |
* | |
* @param int $item_id The item to be moved | |
* @return bool True if the item was moved | |
*/ | |
public function move_down($item_id); | |
/** | |
* Move an item up by 1 | |
* | |
* @param int $item_id The item to be moved | |
* @return bool True if the item was moved | |
*/ | |
public function move_up($item_id); | |
/** | |
* Moves all children of one item to another item | |
* | |
* If the new parent already has children, the new children are appended | |
* to the list. | |
* | |
* @param int $current_parent_id The current parent item | |
* @param int $new_parent_id The new parent item | |
* @return bool True if any items where moved | |
*/ | |
public function move_children($current_parent_id, $new_parent_id); | |
/** | |
* Change parent item | |
* | |
* Moves the item to the bottom of the new \parent's list of children | |
* | |
* @param int $item_id The item to be moved | |
* @param int $new_parent_id The new parent item | |
* @return bool True if the parent was set successfully | |
*/ | |
public function change_parent($item_id, $new_parent_id); | |
/** | |
* Get all items that are either ancestors or descendants of the item | |
* | |
* @param int $item_id Id of the item to retrieve the ancestors/descendants from | |
* @param bool $order_asc Order the items ascendingly (most outer ancestor first) | |
* @param bool $include_item Should the item matching the given item id be included in the list as well | |
* @return array Array of items (containing all columns from the item table) | |
* ID => Item data | |
*/ | |
public function get_path_and_subtree_data($item_id, $order_asc, $include_item); | |
/** | |
* Get all of the item's ancestors | |
* | |
* @param int $item_id Id of the item to retrieve the ancestors from | |
* @param bool $order_asc Order the items ascendingly (most outer ancestor first) | |
* @param bool $include_item Should the item matching the given item id be included in the list as well | |
* @return array Array of items (containing all columns from the item table) | |
* ID => Item data | |
*/ | |
public function get_path_data($item_id, $order_asc, $include_item); | |
/** | |
* Get all of the item's descendants | |
* | |
* @param int $item_id Id of the item to retrieve the descendants from | |
* @param bool $order_asc Order the items ascendingly | |
* @param bool $include_item Should the item matching the given item id be included in the list as well | |
* @return array Array of items (containing all columns from the item table) | |
* ID => Item data | |
*/ | |
public function get_subtree_data($item_id, $order_asc, $include_item); | |
} |