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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\v320;
  15  
  16  class remove_outdated_media extends \phpbb\db\migration\migration
  17  {
  18      // Following constants were deprecated in 3.2
  19      // and moved from constants.php to compatibility_globals.php,
  20      // thus define them as class constants
  21      const ATTACHMENT_CATEGORY_WM = 2;
  22      const ATTACHMENT_CATEGORY_RM = 3;
  23      const ATTACHMENT_CATEGORY_QUICKTIME = 6;
  24  
  25      protected $cat_id = array(
  26              self::ATTACHMENT_CATEGORY_WM,
  27              self::ATTACHMENT_CATEGORY_RM,
  28              self::ATTACHMENT_CATEGORY_QUICKTIME,
  29          );
  30  
  31  	static public function depends_on()
  32      {
  33          return array(
  34              '\phpbb\db\migration\data\v320\dev',
  35          );
  36      }
  37  
  38  	public function update_data()
  39      {
  40          return array(
  41              array('custom', array(array($this, 'change_extension_group'))),
  42          );
  43      }
  44  
  45  	public function change_extension_group()
  46      {
  47          // select group ids of outdated media
  48          $sql = 'SELECT group_id
  49              FROM ' . EXTENSION_GROUPS_TABLE . '
  50              WHERE ' . $this->db->sql_in_set('cat_id', $this->cat_id);
  51          $result = $this->db->sql_query($sql);
  52  
  53          $group_ids = array();
  54          while ($group_id = (int) $this->db->sql_fetchfield('group_id'))
  55          {
  56              $group_ids[] = $group_id;
  57          }
  58          $this->db->sql_freeresult($result);
  59  
  60          // nothing to do, admin has removed all the outdated media extension groups
  61          if (empty($group_ids))
  62          {
  63              return true;
  64          }
  65  
  66          // get the group id of downloadable files
  67          $sql = 'SELECT group_id
  68              FROM ' . EXTENSION_GROUPS_TABLE . "
  69              WHERE group_name = 'DOWNLOADABLE_FILES'";
  70          $result = $this->db->sql_query($sql);
  71          $download_id = (int) $this->db->sql_fetchfield('group_id');
  72          $this->db->sql_freeresult($result);
  73  
  74          if (empty($download_id))
  75          {
  76              $sql = 'UPDATE ' . EXTENSIONS_TABLE . '
  77                  SET group_id = 0
  78                  WHERE ' . $this->db->sql_in_set('group_id', $group_ids);
  79          }
  80          else
  81          {
  82              // move outdated media extensions to downloadable files
  83              $sql = 'UPDATE ' . EXTENSIONS_TABLE . "
  84                  SET group_id = $download_id" . '
  85                  WHERE ' . $this->db->sql_in_set('group_id', $group_ids);
  86          }
  87  
  88          $this->db->sql_query($sql);
  89  
  90          // delete the now empty, outdated media extension groups
  91          $sql = 'DELETE FROM ' . EXTENSION_GROUPS_TABLE . '
  92              WHERE ' . $this->db->sql_in_set('group_id', $group_ids);
  93          $this->db->sql_query($sql);
  94      }
  95  }