/**
* Extracts filtering criteria from an array of query params.
*
* @param array $params
* @return self
*/
private function extractFilters(array $params)
{
if (false === $this->issetNotEmpty(self::PARAM_FILTERING, $params)) {
return $this;
}
$filters = $params[self::PARAM_FILTERING];
if (!is_array($filters)) {
throw RestException::invalidQueryParam(self::PARAM_FILTERING, 'The filter parameter must be an array keyed by filter name and value.');
}
foreach ($filters as $key => $value) {
$this->filters[$key] = $value;
}
return $this;
}
