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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\feed; |
| 15 | |
| 16 | /** |
| 17 | * Abstract class for feeds displaying attachments |
| 18 | */ |
| 19 | abstract class attachments_base extends base |
| 20 | { |
| 21 | /** |
| 22 | * Attachments that may be displayed |
| 23 | */ |
| 24 | protected $attachments = array(); |
| 25 | |
| 26 | /** |
| 27 | * Retrieve the list of attachments that may be displayed |
| 28 | * |
| 29 | * @param array $post_ids Specify for which post IDs to fetch the attachments (optional) |
| 30 | * @param array $topic_ids Specify for which topic IDs to fetch the attachments (optional) |
| 31 | */ |
| 32 | protected function fetch_attachments($post_ids = array(), $topic_ids = array()) |
| 33 | { |
| 34 | $sql_array = array( |
| 35 | 'SELECT' => 'a.*', |
| 36 | 'FROM' => array( |
| 37 | ATTACHMENTS_TABLE => 'a' |
| 38 | ), |
| 39 | 'WHERE' => 'a.in_message = 0 ', |
| 40 | 'ORDER_BY' => 'a.filetime DESC, a.post_msg_id ASC', |
| 41 | ); |
| 42 | |
| 43 | if (!empty($post_ids)) |
| 44 | { |
| 45 | $sql_array['WHERE'] .= 'AND ' . $this->db->sql_in_set('a.post_msg_id', $post_ids); |
| 46 | } |
| 47 | else if (!empty($topic_ids)) |
| 48 | { |
| 49 | if (isset($this->topic_id)) |
| 50 | { |
| 51 | $topic_ids[] = $this->topic_id; |
| 52 | } |
| 53 | |
| 54 | $sql_array['WHERE'] .= 'AND ' . $this->db->sql_in_set('a.topic_id', $topic_ids); |
| 55 | } |
| 56 | else if (isset($this->topic_id)) |
| 57 | { |
| 58 | $sql_array['WHERE'] .= 'AND a.topic_id = ' . (int) $this->topic_id; |
| 59 | } |
| 60 | else if (isset($this->forum_id)) |
| 61 | { |
| 62 | $sql_array['LEFT_JOIN'] = array( |
| 63 | array( |
| 64 | 'FROM' => array(TOPICS_TABLE => 't'), |
| 65 | 'ON' => 'a.topic_id = t.topic_id', |
| 66 | ) |
| 67 | ); |
| 68 | $sql_array['WHERE'] .= 'AND t.forum_id = ' . (int) $this->forum_id; |
| 69 | } |
| 70 | else |
| 71 | { |
| 72 | // Do not allow querying the full attachments table |
| 73 | throw new \RuntimeException($this->user->lang('INVALID_FEED_ATTACHMENTS')); |
| 74 | } |
| 75 | |
| 76 | $sql = $this->db->sql_build_query('SELECT', $sql_array); |
| 77 | $result = $this->db->sql_query($sql); |
| 78 | |
| 79 | // Set attachments in feed items |
| 80 | while ($row = $this->db->sql_fetchrow($result)) |
| 81 | { |
| 82 | $this->attachments[$row['post_msg_id']][] = $row; |
| 83 | } |
| 84 | $this->db->sql_freeresult($result); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Get attachments related to a given post |
| 89 | * |
| 90 | * @param int $post_id Post id |
| 91 | * @return mixed Attachments related to $post_id |
| 92 | */ |
| 93 | public function get_attachments($post_id) |
| 94 | { |
| 95 | return $this->attachments[$post_id]; |
| 96 | } |
| 97 | } |