public function setInstanceCriteriaFilter() { if (self::$s_criteria_filter == null) { self::$s_criteria_filter = new criteriaFilter(); } $c = self::$s_criteria_filter->getFilter(); if ($c) { $c->remove(self::DELETED_AT); $c->remove(self::TYPE); } else { $c = new Criteria(); } $c->add(self::DELETED_AT, null, Criteria::EQUAL); $c->add(self::TYPE, assetType::THUMBNAIL, Criteria::NOT_EQUAL); self::$s_criteria_filter->setFilter($c); }