CommonDBTM::getFromDB PHP Method

    function getFromDB($ID)
    {
        global $DB;
        // Make new database object and fill variables
        // != 0 because 0 is consider as empty
        if (strlen($ID) == 0) {
            return false;
        }
        return $this->getFromDBByQuery("WHERE `" . $this->getTable() . "`.`" . $this->getIndexName() . "` = '" . Toolbox::cleanInteger($ID) . "' LIMIT 1");
    }

 /**
  * @since version 0.85
  *
  * @see CommonDBTM::processMassiveActionsForOneItemtype()
  **/
 static function processMassiveActionsForOneItemtype(MassiveAction $ma, CommonDBTM $item, array $ids)
 {
     switch ($ma->getAction()) {
         case 'add':
             $input = $ma->getInput();
             $ticket = new Ticket();
             if (isset($input['link']) && isset($input['tickets_id_1'])) {
                 if ($item->getFromDB($input['tickets_id_1'])) {
                     foreach ($ids as $id) {
                         $input2 = array();
                         $input2['id'] = $input['tickets_id_1'];
                         $input2['_link']['tickets_id_1'] = $input['tickets_id_1'];
                         $input2['_link']['link'] = $input['link'];
                         $input2['_link']['tickets_id_2'] = $id;
                         if ($item->can($input['tickets_id_1'], UPDATE)) {
                             if ($ticket->update($input2)) {
                                 $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_OK);
                             } else {
                                 $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
                                 $ma->addMessage($item->getErrorMessage(ERROR_ON_ACTION));
                             }
                         } else {
                             $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_NORIGHT);
                             $ma->addMessage($item->getErrorMessage(ERROR_RIGHT));
                         }
                     }
                 }
             }
             return;
     }
     parent::processMassiveActionsForOneItemtype($ma, $item, $ids);
 }