public function getApprovationInstance() { // Caso Regular: aprueba en primer instancia $instance = StudentApprovedCourseSubjectPeer::retrieveByStudentApprovedCareerSubject($this); if (!is_null($instance)) { return $instance; } // Caso Mesa de Diciembre, Marzo $instance = StudentDisapprovedCourseSubjectPeer::retrieveByStudentApprovedCareerSubject($this); if (!is_null($instance)) { return $instance; } // Caso de previa $instance = StudentRepprovedCourseSubjectPeer::retrieveByStudentApprovedCareerSubject($this); if (!is_null($instance)) { return $instance; } return null; }