public function getRegistrationPeriod($departmentId) { $ci = new Criteria(); $ci->add(AcademicCalendarPeer::DEPARTMENT_ID, $departmentId); $ci->addJoin(RegPeriodPeer::ACADEMIC_CALENDAR_ID, AcademicCalendarPeer::ID); $ci->add(RegPeriodPeer::CURRICULUM_ID, 1); return RegPeriodPeer::doSelectOne($ci); }