/**
* This method back the period to last one.
*/
public function backPeriod()
{
if ($this->getCurrentPeriod() == 1) {
return null;
}
$con = Propel::getConnection();
$con->beginTransaction();
try {
$c = new Criteria();
$c->add(CourseSubjectStudentMarkPeer::MARK_NUMBER, $this->getCurrentPeriod() - 1);
$c->addJoin(CourseSubjectStudentMarkPeer::COURSE_SUBJECT_STUDENT_ID, CourseSubjectStudentPeer::ID);
$c->addJoin(CourseSubjectStudentPeer::COURSE_SUBJECT_ID, CourseSubjectPeer::ID);
$c->add(CourseSubjectPeer::COURSE_ID, $this->getId());
$course_subject_students_marks = CourseSubjectStudentMarkPeer::doSelect($c);
foreach ($course_subject_students_marks as $course_subject_student_mark) {
$course_subject_student_mark->setIsClosed(false);
$course_subject_student_mark->save($con);
//Seleccionamos todos los StudentDisapprovedCourseSubjec y StudentApprovedCourseSubject si es que tiene y los borramos
$c = new Criteria();
$c->add(StudentDisapprovedCourseSubjectPeer::COURSE_SUBJECT_STUDENT_ID, $course_subject_student_mark->getCourseSubjectStudentId());
StudentDisapprovedCourseSubjectPeer::doDelete($c);
//eliminando StudentApprovedCourseSubject
$c = new Criteria();
$course_subject_student = CourseSubjectStudentPeer::retrieveByPK($course_subject_student_mark->getCourseSubjectStudentId());
$c->add(StudentApprovedCourseSubjectPeer::STUDENT_ID, $course_subject_student->getStudentId());
$c->add(StudentApprovedCourseSubjectPeer::COURSE_SUBJECT_ID, $course_subject_student->getCourseSubjectId());
StudentApprovedCourseSubjectPeer::doDelete($c);
}
$this->setCurrentPeriod($this->getCurrentPeriod() - 1);
$this->setIsClosed(false);
$this->save($con);
$con->commit();
} catch (PropelException $e) {
$con->rollBack();
throw $e;
}
}
