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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\db\migration\data\v330;
  15  
  16  class remove_attachment_flash extends \phpbb\db\migration\migration
  17  {
  18      // Following constants were deprecated in 3.3
  19      // and moved from constants.php to compatibility_globals.php,
  20      // thus define them as class constants
  21      const ATTACHMENT_CATEGORY_FLASH = 5;
  22  
  23      protected $cat_id = array(
  24          self::ATTACHMENT_CATEGORY_FLASH,
  25      );
  26  
  27  	static public function depends_on()
  28      {
  29          return ['\phpbb\db\migration\data\v330\dev',];
  30      }
  31  
  32  	public function update_data()
  33      {
  34          return array(
  35              array('custom', array(array($this, 'remove_flash_group'))),
  36          );
  37      }
  38  
  39  	public function remove_flash_group()
  40      {
  41          // select group ids of outdated media
  42          $sql = 'SELECT group_id
  43              FROM ' . EXTENSION_GROUPS_TABLE . '
  44              WHERE ' . $this->db->sql_in_set('cat_id', $this->cat_id);
  45          $result = $this->db->sql_query($sql);
  46  
  47          $group_ids = array();
  48          while ($group_id = (int) $this->db->sql_fetchfield('group_id'))
  49          {
  50              $group_ids[] = $group_id;
  51          }
  52          $this->db->sql_freeresult($result);
  53  
  54          // nothing to do, admin has removed all the outdated media extension groups
  55          if (empty($group_ids))
  56          {
  57              return true;
  58          }
  59  
  60          // get the group id of downloadable files
  61          $sql = 'SELECT group_id
  62              FROM ' . EXTENSION_GROUPS_TABLE . "
  63              WHERE group_name = 'DOWNLOADABLE_FILES'";
  64          $result = $this->db->sql_query($sql);
  65          $download_id = (int) $this->db->sql_fetchfield('group_id');
  66          $this->db->sql_freeresult($result);
  67  
  68          if (empty($download_id))
  69          {
  70              $sql = 'UPDATE ' . EXTENSIONS_TABLE . '
  71                  SET group_id = 0
  72                  WHERE ' . $this->db->sql_in_set('group_id', $group_ids);
  73          }
  74          else
  75          {
  76              // move outdated media extensions to downloadable files
  77              $sql = 'UPDATE ' . EXTENSIONS_TABLE . "
  78                  SET group_id = $download_id" . '
  79                  WHERE ' . $this->db->sql_in_set('group_id', $group_ids);
  80          }
  81  
  82          $this->db->sql_query($sql);
  83  
  84          // delete the now empty, outdated media extension groups
  85          $sql = 'DELETE FROM ' . EXTENSION_GROUPS_TABLE . '
  86              WHERE ' . $this->db->sql_in_set('group_id', $group_ids);
  87          $this->db->sql_query($sql);
  88      }
  89  }