public function getVMonthlysJoinClassGroup($criteria = null, $con = null)
{
include_once 'lib/model/om/BaseVMonthlyPeer.php';
if ($criteria === null) {
$criteria = new Criteria();
} elseif ($criteria instanceof Criteria) {
$criteria = clone $criteria;
}
if ($this->collVMonthlys === null) {
if ($this->isNew()) {
$this->collVMonthlys = array();
} else {
$criteria->add(VMonthlyPeer::ACADEMIC_COST_ID, $this->getId());
$this->collVMonthlys = VMonthlyPeer::doSelectJoinClassGroup($criteria, $con);
}
} else {
$criteria->add(VMonthlyPeer::ACADEMIC_COST_ID, $this->getId());
if (!isset($this->lastVMonthlyCriteria) || !$this->lastVMonthlyCriteria->equals($criteria)) {
$this->collVMonthlys = VMonthlyPeer::doSelectJoinClassGroup($criteria, $con);
}
}
$this->lastVMonthlyCriteria = $criteria;
return $this->collVMonthlys;
}