/** * * * @param Mage_Newsletter_Model_Queue $queue */ public function addNewsletterGroupFilter(Mage_Newsletter_Model_Template $template) { // get the newsletter_group_id from the template $newsletterGroupId = $template->getNewsletterGroupId(); $this->getSelect()->where('`main_table`.`newsletter_group_id` LIKE "%' . $newsletterGroupId . '%"'); }