/**
* Returns the number of related Exam objects.
*
* @param Criteria $criteria
* @param boolean $distinct
* @param PropelPDO $con
* @return int Count of related Exam objects.
* @throws PropelException
*/
public function countExams(Criteria $criteria = null, $distinct = false, PropelPDO $con = null)
{
if ($criteria === null) {
$criteria = new Criteria(EnumItemPeer::DATABASE_NAME);
} else {
$criteria = clone $criteria;
}
if ($distinct) {
$criteria->setDistinct();
}
$count = null;
if ($this->collExams === null) {
if ($this->isNew()) {
$count = 0;
} else {
$criteria->add(ExamPeer::TYPE, $this->id);
$count = ExamPeer::doCount($criteria, $con);
}
} else {
// criteria has no effect for a new object
if (!$this->isNew()) {
// the following code is to determine if a new query is
// called for. If the criteria is the same as the last
// one, just return count of the collection.
$criteria->add(ExamPeer::TYPE, $this->id);
if (!isset($this->lastExamCriteria) || !$this->lastExamCriteria->equals($criteria)) {
$count = ExamPeer::doCount($criteria, $con);
} else {
$count = count($this->collExams);
}
} else {
$count = count($this->collExams);
}
}
return $count;
}