Bolt\Storage\Field\Type\TemplateFieldsType::serialize PHP Метод

    protected function serialize($input, $metadata)
    {
        $output = [];
        foreach ($metadata->getFieldMappings() as $field) {
            $fieldobj = $this->em->getFieldManager()->get($field['fieldtype'], $field);
            $type = $fieldobj->getStorageType();
            $key = $field['fieldname'];
            // Hack … remove soon
            if (!isset($input[$key])) {
                continue;
            }
            if ($this->isJson($input[$key])) {
                $input[$key] = json_decode($input[$key], true);
            }
            $output[$key] = $type->convertToDatabaseValue($input[$key], $this->getPlatform());
        }
        return $output;
    }