{

protected $orderBy = [];

public function orderBy($name, $direction = Select::ASC)

{

if (!$this->reflection->hasProperty($name)) {

throw new Exception\QueryException(

"Invalid property name '" . $name . "'!"

);

}

$direction = strtolower($direction);

if ($direction !== Select::ASC && $direction !== Select::DESC) {

throw new Exception\QueryException("Order direction must be '" . Select::ASC . "' or '" . Select::DESC . "'!");

}

$property = $this->reflection->getProperty($name);

if ($property->hasOption(Map::KEY) && !$property->getOption(Map::KEY)) {

throw new Exception\QueryException(

"Order can not be used on properties with disabled mapping!"

);

}

$this->orderBy[$this->reflection->getProperty($name)->getUnmapped()] = $direction;

return $this;

}