Sulu\Component\Rest\ListBuilder\Doctrine\DoctrineListBuilder::getAllFieldNames PHP Méthode

    protected function getAllFieldNames($expressions)
    {
        $fieldNames = [];
        foreach ($expressions as $expression) {
            if ($expression instanceof ConjunctionExpressionInterface) {
                $fieldNames = array_merge($fieldNames, $expression->getFieldNames());
            } elseif ($expression instanceof BasicExpressionInterface) {
                $fieldNames[] = $expression->getFieldName();
            }
        }
        return $fieldNames;
    }