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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\groupposition; |
| 15 | |
| 16 | /** |
| 17 | * Interface to manage group positions in various places of phpbb |
| 18 | * |
| 19 | * The interface provides simple methods to add, delete and move a group |
| 20 | */ |
| 21 | interface groupposition_interface |
| 22 | { |
| 23 | /** |
| 24 | * Returns the value for a given group, if the group exists. |
| 25 | * @param int $group_id group_id of the group to be selected |
| 26 | * @return int position of the group |
| 27 | */ |
| 28 | public function get_group_value($group_id); |
| 29 | |
| 30 | /** |
| 31 | * Get number of groups displayed |
| 32 | * |
| 33 | * @return int value of the last item displayed |
| 34 | */ |
| 35 | public function get_group_count(); |
| 36 | |
| 37 | /** |
| 38 | * Addes a group by group_id |
| 39 | * |
| 40 | * @param int $group_id group_id of the group to be added |
| 41 | * @return bool True if the group was added successfully |
| 42 | */ |
| 43 | public function add_group($group_id); |
| 44 | |
| 45 | /** |
| 46 | * Deletes a group by group_id |
| 47 | * |
| 48 | * @param int $group_id group_id of the group to be deleted |
| 49 | * @param bool $skip_group Skip setting the value for this group, to save the query, when you need to update it anyway. |
| 50 | * @return bool True if the group was deleted successfully |
| 51 | */ |
| 52 | public function delete_group($group_id, $skip_group = false); |
| 53 | |
| 54 | /** |
| 55 | * Moves a group up by group_id |
| 56 | * |
| 57 | * @param int $group_id group_id of the group to be moved |
| 58 | * @return bool True if the group was moved successfully |
| 59 | */ |
| 60 | public function move_up($group_id); |
| 61 | |
| 62 | /** |
| 63 | * Moves a group down by group_id |
| 64 | * |
| 65 | * @param int $group_id group_id of the group to be moved |
| 66 | * @return bool True if the group was moved successfully |
| 67 | */ |
| 68 | public function move_down($group_id); |
| 69 | |
| 70 | /** |
| 71 | * Moves a group up/down |
| 72 | * |
| 73 | * @param int $group_id group_id of the group to be moved |
| 74 | * @param int $delta number of steps: |
| 75 | * - positive = move up |
| 76 | * - negative = move down |
| 77 | * @return bool True if the group was moved successfully |
| 78 | */ |
| 79 | public function move($group_id, $delta); |
| 80 | } |