/**
* Returns a new CourseCategoryQuery object.
*
* @param string $modelAlias The alias of a model in the query
* @param Criteria $criteria Optional Criteria to build the query from
*
* @return CourseCategoryQuery
*/
public static function create($modelAlias = null, $criteria = null)
{
if ($criteria instanceof CourseCategoryQuery) {
return $criteria;
}
$query = new CourseCategoryQuery();
if (null !== $modelAlias) {
$query->setModelAlias($modelAlias);
}
if ($criteria instanceof Criteria) {
$query->mergeWith($criteria);
}
return $query;
}
/**
* Removes this object from datastore and sets delete attribute.
*
* @param PropelPDO $con
* @return void
* @throws PropelException
* @see BaseObject::setDeleted()
* @see BaseObject::isDeleted()
*/
public function delete(PropelPDO $con = null)
{
if ($this->isDeleted()) {
throw new PropelException("This object has already been deleted.");
}
if ($con === null) {
$con = Propel::getConnection(CourseCategoryPeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
}
$con->beginTransaction();
try {
$ret = $this->preDelete($con);
if ($ret) {
CourseCategoryQuery::create()->filterByPrimaryKey($this->getPrimaryKey())->delete($con);
$this->postDelete($con);
$con->commit();
$this->setDeleted(true);
} else {
$con->commit();
}
} catch (PropelException $e) {
$con->rollBack();
throw $e;
}
}