/**
* Validate order
*
* @param RequestInterface $request
* @param array $errors
*/
protected function validateOrder(RequestInterface $request, array &$errors)
{
foreach ($request->getOrder() as $field => $value) {
if (!$this->schema->hasField($field)) {
$errors[] = sprintf('Order cannot be applied to non-existent field "%s"', $field);
continue;
}
if (!$this->schema->getField($field)->isOrderable()) {
$errors[] = sprintf('Field "%s" is not orderable', $field);
}
if ($value !== RequestInterface::ORDER_ASC && $value !== RequestInterface::ORDER_DESC) {
$errors[] = sprintf('Invalid order direction "%s" specified for the field "%s"', $value, $field);
}
}
}
/**
* Process order
*
* @param Criteria $criteria
* @param RequestInterface $request
*/
protected function processOrder(Criteria $criteria, RequestInterface $request)
{
$criteria->orderBy($request->getOrder());
}
