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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\v30x;
  15  
  16  class release_3_0_11_rc1 extends \phpbb\db\migration\migration
  17  {
  18  	public function effectively_installed()
  19      {
  20          return phpbb_version_compare($this->config['version'], '3.0.11-RC1', '>=');
  21      }
  22  
  23  	static public function depends_on()
  24      {
  25          return array('\phpbb\db\migration\data\v30x\release_3_0_10');
  26      }
  27  
  28  	public function update_data()
  29      {
  30          return array(
  31              array('custom', array(array(&$this, 'cleanup_deactivated_styles'))),
  32              array('custom', array(array(&$this, 'delete_orphan_private_messages'))),
  33  
  34              array('config.update', array('version', '3.0.11-RC1')),
  35          );
  36      }
  37  
  38  	public function cleanup_deactivated_styles()
  39      {
  40          // Updates users having current style a deactivated one
  41          $sql = 'SELECT style_id
  42              FROM ' . STYLES_TABLE . '
  43              WHERE style_active = 0';
  44          $result = $this->sql_query($sql);
  45  
  46          $deactivated_style_ids = array();
  47          while ($style_id = $this->db->sql_fetchfield('style_id', false, $result))
  48          {
  49              $deactivated_style_ids[] = (int) $style_id;
  50          }
  51          $this->db->sql_freeresult($result);
  52  
  53          if (!empty($deactivated_style_ids))
  54          {
  55              $sql = 'UPDATE ' . USERS_TABLE . '
  56                  SET user_style = ' . (int) $this->config['default_style'] .'
  57                  WHERE ' . $this->db->sql_in_set('user_style', $deactivated_style_ids);
  58              $this->sql_query($sql);
  59          }
  60      }
  61  
  62  	public function delete_orphan_private_messages()
  63      {
  64          // Delete orphan private messages
  65          $batch_size = 500;
  66  
  67          $sql_array = array(
  68              'SELECT'    => 'p.msg_id',
  69              'FROM'        => array(
  70                  PRIVMSGS_TABLE    => 'p',
  71              ),
  72              'LEFT_JOIN'    => array(
  73                  array(
  74                      'FROM'    => array(PRIVMSGS_TO_TABLE => 't'),
  75                      'ON'    => 'p.msg_id = t.msg_id',
  76                  ),
  77              ),
  78              'WHERE'        => 't.user_id IS NULL',
  79          );
  80          $sql = $this->db->sql_build_query('SELECT', $sql_array);
  81  
  82          $result = $this->db->sql_query_limit($sql, $batch_size);
  83  
  84          $delete_pms = array();
  85          while ($row = $this->db->sql_fetchrow($result))
  86          {
  87              $delete_pms[] = (int) $row['msg_id'];
  88          }
  89          $this->db->sql_freeresult($result);
  90  
  91          if (!empty($delete_pms))
  92          {
  93              $sql = 'DELETE FROM ' . PRIVMSGS_TABLE . '
  94                  WHERE ' . $this->db->sql_in_set('msg_id', $delete_pms);
  95              $this->sql_query($sql);
  96  
  97              // Return false to have the Migrator call this function again
  98              return false;
  99          }
 100      }
 101  }