/**
* Apply query defaults, appends, invariants.
*
* @param ParamBag $params Parameters
* @param array $defaults Query defaults
* @param array $appends Query appends
* @param array $invariants Query invariants
*
* @return void
*/
protected function apply(ParamBag $params, array $defaults, array $appends, array $invariants)
{
$final = $params->getArrayCopy();
$final = array_replace($defaults, $final);
$final = array_merge_recursive($final, $appends);
$final = array_replace($final, $invariants);
$params->exchangeArray($final);
}
