Phraseanet/lib/classes/cache/databox.class.php

<?php

/*
 * This file is part of Phraseanet
 *
 * (c) 2005-2010 Alchemy
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 *
 * @package     cache
 * @license     http://opensource.org/licenses/gpl-3.0 GPLv3
 * @link        www.phraseanet.com
 */
class cache_databox
{
  protected static $refreshing = false;
  /**
   *
   * @param int $sbas_id
   * @return cache_databox
   */
  public static function refresh($sbas_id)
  {
    if(self::$refreshing)
    {
      return;
    }

    self::$refreshing = true;

    $databox = \databox::get_instance((int) $sbas_id);

    $date = new \DateTime('-3 seconds');

    $appbox = \appbox::get_instance(\bootstrap::getCore());

    $registry = \registry::get_instance();

    $last_update = null;

    try
    {
      $last_update = $appbox->get_data_from_cache('memcached_update_' . $sbas_id);
    }
    catch (\Exception $e)
    {

    }

    if ($last_update)
      $last_update = new \DateTime($last_update);
    else
      $last_update = new \DateTime('-10 years');

    if ($date <= $last_update)
    {
      self::$refreshing = false;

      return;
    }

    $connsbas = \connection::getPDOConnection($sbas_id);

    $sql  = 'SELECT type, value FROM memcached WHERE site_id = :site_id';
    $stmt = $connsbas->prepare($sql);
    $stmt->execute(array(':site_id' => $registry->get('GV_ServerName')));
    $rs        = $stmt->fetchAll(\PDO::FETCH_ASSOC);
    $stmt->closeCursor();

    foreach ($rs as $row)
    {
      switch ($row['type'])
      {
        case 'record':
          $key = 'record_' . $sbas_id . '_' . $row['value'];
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_SUBDEFS;
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_GROUPING;
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_MIME;
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_ORIGINAL_NAME;
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_SHA256;
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_STATUS;
          $databox->delete_data_from_cache($key);
          $key = 'record_' . $sbas_id . '_' . $row['value'] . '_' . \record_adapter::CACHE_TECHNICAL_DATAS;
          $databox->delete_data_from_cache($key);

          $sql = 'DELETE FROM memcached
              WHERE site_id = :site_id AND type="record" AND value = :value';

          $params = array(
            ':site_id' => $registry->get('GV_ServerName')
            , ':value'   => $row['value']
          );

          $stmt = $connsbas->prepare($sql);
          $stmt->execute($params);
          $stmt->closeCursor();

          $record = new \record_adapter($sbas_id, $row['value']);
          $record->get_caption()->delete_data_from_cache();

          foreach ($record->get_caption()->get_fields() as $field)
          {
            $field->delete_data_from_cache();
          }

          foreach($record->get_subdefs() as $subdef)
          {
            $subdef->delete_data_from_cache();
          }

          break;
        case 'structure':
          $appbox->delete_data_from_cache(\appbox::CACHE_LIST_BASES);
          $appbox->delete_data_from_cache(\appbox::CACHE_SBAS_IDS);

          $sql = 'DELETE FROM memcached
              WHERE site_id = :site_id AND type="structure" AND value = :value';

          $params = array(
            ':site_id' => $registry->get('GV_ServerName')
            , ':value'   => $row['value']
          );

          $stmt = $connsbas->prepare($sql);
          $stmt->execute($params);
          $stmt->closeCursor();
          break;
      }
    }

    $date = new \DateTime();
    $now  = $date->format(DATE_ISO8601);

    $appbox->set_data_to_cache($now, 'memcached_update_' . $sbas_id);

    $conn = \connection::getPDOConnection();

    $sql  = 'UPDATE sitepreff SET memcached_update = :date';
    $stmt = $conn->prepare($sql);
    $stmt->execute(array(':date' => $now));
    $stmt->closeCursor();

    self::$refreshing = false;

    return;
  }

  /**
   *
   * @param int $sbas_id
   * @param string $type
   * @param mixed content $value
   * @return Void
   */
  public static function update($sbas_id, $type, $value = '')
  {

    $connbas = \connection::getPDOConnection($sbas_id);

    $registry = \registry::get_instance();

    $sql = 'SELECT distinct site_id as site_id
            FROM clients
            WHERE site_id != :site_id';

    $stmt = $connbas->prepare($sql);
    $stmt->execute(array(':site_id' => $registry->get('GV_ServerName')));
    $rs        = $stmt->fetchAll(\PDO::FETCH_ASSOC);
    $stmt->closeCursor();

    $sql = 'REPLACE INTO memcached (site_id, type, value)
            VALUES (:site_id, :type, :value)';

    $stmt = $connbas->prepare($sql);

    foreach ($rs as $row)
    {
      $stmt->execute(array(':site_id' => $row['site_id'], ':type'    => $type, ':value'   => $value));
    }

    $stmt->closeCursor();

    return;
  }

  public static function insertClient(\databox $databox)
  {
    $connbas = $databox->get_connection();

    $registry = \registry::get_instance();

    $sql  = 'SELECT site_id FROM clients WHERE site_id = :site_id';
    $stmt = $connbas->prepare($sql);
    $stmt->execute(array(':site_id' => $registry->get('GV_ServerName')));
    $rowCount  = $stmt->rowCount();
    $stmt->closeCursor();

    if ($rowCount > 0)
    {
      return;
    }

    $sql  = 'INSERT INTO clients (site_id) VALUES (:site_id)';
    $stmt = $connbas->prepare($sql);
    $stmt->execute(array(':site_id' => $registry->get('GV_ServerName')));
    $stmt->closeCursor();

    return;
  }

}