public static function retriveByStudentCareerSchoolYearAndPeriod($student_career_school_year, $period) { $c = new Criteria(); $c->add(StudentCareerSchoolYearConductPeer::STUDENT_CAREER_SCHOOL_YEAR_ID, $student_career_school_year->getId()); $c->add(StudentCareerSchoolYearConductPeer::CAREER_SCHOOL_YEAR_PERIOD_ID, $period->getId()); return StudentCareerSchoolYearConductPeer::doSelectOne($c); }