/**
* Find object by primary key
* Use instance pooling to avoid a database query if the object exists
* <code>
* $obj = $c->findPk(12, $con);
* </code>
* @param mixed $key Primary key to use for the query
* @param PropelPDO $con an optional connection object
*
* @return Class|array|mixed the result, formatted by the current formatter
*/
public function findPk($key, $con = null)
{
if (null !== ($obj = ClassPeer::getInstanceFromPool((string) $key)) && $this->getFormatter()->isObjectFormatter()) {
// the object is alredy in the instance pool
return $obj;
} else {
// the object has not been requested yet, or the formatter is not an object formatter
$criteria = $this->isKeepQuery() ? clone $this : $this;
$stmt = $criteria->filterByPrimaryKey($key)->getSelectStatement($con);
return $criteria->getFormatter()->init($criteria)->formatOne($stmt);
}
}
