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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | namespace phpbb\tree; |
| 15 | |
| 16 | interface tree_interface |
| 17 | { |
| 18 | /** |
| 19 | * Inserts an item into the database table and into the tree. |
| 20 | * |
| 21 | * @param array $additional_data The item to be added |
| 22 | * @return array Array with item data as set in the database |
| 23 | */ |
| 24 | public function insert(array $additional_data); |
| 25 | |
| 26 | /** |
| 27 | * Delete an item from the tree and from the database table |
| 28 | * |
| 29 | * Also deletes the subtree from the tree and from the database table |
| 30 | * |
| 31 | * @param int $item_id The item to be deleted |
| 32 | * @return array Item ids that have been deleted |
| 33 | */ |
| 34 | public function delete($item_id); |
| 35 | |
| 36 | /** |
| 37 | * Move an item by a given delta |
| 38 | * |
| 39 | * An item is only moved up/down within the same parent. If the delta is |
| 40 | * larger then the number of children, the item is moved to the top/bottom |
| 41 | * of the list of children within this parent. |
| 42 | * |
| 43 | * @param int $item_id The item to be moved |
| 44 | * @param int $delta Number of steps to move this item, < 0 => down, > 0 => up |
| 45 | * @return bool True if the item was moved |
| 46 | */ |
| 47 | public function move($item_id, $delta); |
| 48 | |
| 49 | /** |
| 50 | * Move an item down by 1 |
| 51 | * |
| 52 | * @param int $item_id The item to be moved |
| 53 | * @return bool True if the item was moved |
| 54 | */ |
| 55 | public function move_down($item_id); |
| 56 | |
| 57 | /** |
| 58 | * Move an item up by 1 |
| 59 | * |
| 60 | * @param int $item_id The item to be moved |
| 61 | * @return bool True if the item was moved |
| 62 | */ |
| 63 | public function move_up($item_id); |
| 64 | |
| 65 | /** |
| 66 | * Moves all children of one item to another item |
| 67 | * |
| 68 | * If the new parent already has children, the new children are appended |
| 69 | * to the list. |
| 70 | * |
| 71 | * @param int $current_parent_id The current parent item |
| 72 | * @param int $new_parent_id The new parent item |
| 73 | * @return bool True if any items where moved |
| 74 | */ |
| 75 | public function move_children($current_parent_id, $new_parent_id); |
| 76 | |
| 77 | /** |
| 78 | * Change parent item |
| 79 | * |
| 80 | * Moves the item to the bottom of the new \parent's list of children |
| 81 | * |
| 82 | * @param int $item_id The item to be moved |
| 83 | * @param int $new_parent_id The new parent item |
| 84 | * @return bool True if the parent was set successfully |
| 85 | */ |
| 86 | public function change_parent($item_id, $new_parent_id); |
| 87 | |
| 88 | /** |
| 89 | * Get all items that are either ancestors or descendants of the item |
| 90 | * |
| 91 | * @param int $item_id Id of the item to retrieve the ancestors/descendants from |
| 92 | * @param bool $order_asc Order the items ascendingly (most outer ancestor first) |
| 93 | * @param bool $include_item Should the item matching the given item id be included in the list as well |
| 94 | * @return array Array of items (containing all columns from the item table) |
| 95 | * ID => Item data |
| 96 | */ |
| 97 | public function get_path_and_subtree_data($item_id, $order_asc, $include_item); |
| 98 | |
| 99 | /** |
| 100 | * Get all of the item's ancestors |
| 101 | * |
| 102 | * @param int $item_id Id of the item to retrieve the ancestors from |
| 103 | * @param bool $order_asc Order the items ascendingly (most outer ancestor first) |
| 104 | * @param bool $include_item Should the item matching the given item id be included in the list as well |
| 105 | * @return array Array of items (containing all columns from the item table) |
| 106 | * ID => Item data |
| 107 | */ |
| 108 | public function get_path_data($item_id, $order_asc, $include_item); |
| 109 | |
| 110 | /** |
| 111 | * Get all of the item's descendants |
| 112 | * |
| 113 | * @param int $item_id Id of the item to retrieve the descendants from |
| 114 | * @param bool $order_asc Order the items ascendingly |
| 115 | * @param bool $include_item Should the item matching the given item id be included in the list as well |
| 116 | * @return array Array of items (containing all columns from the item table) |
| 117 | * ID => Item data |
| 118 | */ |
| 119 | public function get_subtree_data($item_id, $order_asc, $include_item); |
| 120 | } |