limit = $this->_atts['limit'] ?? $filter->limit; $lp_course_db->get_courses_order_by_popular( $filter ); $courses = $lp_course_db->get_courses( $filter ); $this->_query = $lp_course_db->get_values_by_key( $courses, 'ID' ); } catch ( Throwable $e ) { } } } }