/**
* @return \Google_Service_Datastore_Filter
* @throws MissingFieldsException
*/
public function build()
{
$compositeFilter = new \Google_Service_Datastore_CompositeFilter();
$missing = [];
if (empty($this->filters)) {
$missing[] = '$filter';
}
if (empty($this->operator)) {
$missing[] = '$operator';
}
if (!empty($missing)) {
throw new MissingFieldsException(self::class, $missing);
}
$compositeFilter->setFilters($this->filters);
$compositeFilter->setOperator($this->operator);
$filter = new \Google_Service_Datastore_Filter();
$filter->setCompositeFilter($compositeFilter);
return $filter;
}
/**
* Create a composite 'and' filter.
* @param $filters Array of filters
*/
protected static function createCompositeFilter($filters)
{
$composite_filter = new Google_Service_Datastore_CompositeFilter();
$composite_filter->setOperator('and');
$composite_filter->setFilters($filters);
$filter = new Google_Service_Datastore_Filter();
$filter->setCompositeFilter($composite_filter);
return $filter;
}
