src/Worker/MergeContact.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Worker;
  23
  24 use Friendica\Core\Logger;
  25 use Friendica\Database\DBA;
  26 use Friendica\Database\DBStructure;
  27
  28 class MergeContact
  29 {
  30         /**
  31          * Replace all occurences of the given contact id and replace it
  32          *
  33          * @param integer $new_cid
  34          * @param integer $old_cid
  35          * @param integer $uid
  36          */
  37         public static function execute(int $new_cid, int $old_cid, int $uid)
  38         {
  39                 if (empty($new_cid) || empty($old_cid) || ($new_cid == $old_cid)) {
  40                         // Invalid request
  41                         return;
  42                 }
  43
  44                 Logger::info('Handling duplicate', ['search' => $old_cid, 'replace' => $new_cid]);
  45
  46                 foreach (['item', 'thread', 'post-user', 'post-thread-user'] as $table) {
  47                         if (DBStructure::existsTable($table)) {
  48                                 DBA::update($table, ['contact-id' => $new_cid], ['contact-id' => $old_cid]);
  49                         }
  50                 }
  51                 DBA::update('mail', ['contact-id' => $new_cid], ['contact-id' => $old_cid]);
  52                 DBA::update('photo', ['contact-id' => $new_cid], ['contact-id' => $old_cid]);
  53                 DBA::update('event', ['cid' => $new_cid], ['cid' => $old_cid]);
  54
  55                 // These fields only contain public contact entries (uid = 0)
  56                 if ($uid == 0) {
  57                         DBA::update('post-tag', ['cid' => $new_cid], ['cid' => $old_cid]);
  58                         DBA::delete('post-tag', ['cid' => $old_cid]);
  59                         foreach (['item', 'post', 'post-thread', 'post-user', 'post-thread-user'] as $table) {
  60                                 if (DBStructure::existsTable($table)) {
  61                                         DBA::update($table, ['author-id' => $new_cid], ['author-id' => $old_cid]);
  62                                         DBA::update($table, ['owner-id' => $new_cid], ['owner-id' => $old_cid]);
  63                                         DBA::update($table, ['causer-id' => $new_cid], ['causer-id' => $old_cid]);
  64                                 }
  65                         }
  66                         if (DBStructure::existsTable('thread')) {
  67                                 DBA::update('thread', ['author-id' => $new_cid], ['author-id' => $old_cid]);
  68                                 DBA::update('thread', ['owner-id' => $new_cid], ['owner-id' => $old_cid]);
  69                         }
  70                 } else {
  71                         /// @todo Check if some other data needs to be adjusted as well, possibly the "rel" status?
  72                 }
  73
  74                 // Remove the duplicate
  75                 DBA::delete('contact', ['id' => $old_cid]);
  76         }
  77 }