private function showField(\stdClass $output, ApiInterface $entity, $column) {
        if($this->getAcl()->canReadField($entity, $column)) {
            if(in_array($column, $entity->getUnReadableFields())) {
                $value = null;
            } else {
                $value = $entity->readAttribute($column);
                //Fix for Date and DateTime
                if(is_object($value) && method_exists($value, '__toString')) {
                    $value = $value->__toString();
                }
            }
            $output->{$column} = $value;
        }
    }