Symfony2:自动映射控制器参数中的查询字符串 [英] Symfony2 : Automatically map query string in Controller parameter

问题描述

在 Symfony2 中，路由参数可以自动映射到控制器参数，例如:http://a.com/test/foo 将返回foo"

In Symfony2, the route parameters can be automatically map to the controller arguments, eg: http://a.com/test/foo will return "foo"

    /**
     * @Route("/test/{name}")
     */
    public function action(Request $request, $name) {
        return new Response(print_r($name, true));
    }

见 http://symfony.com/doc/current/book/routing.html#route-parameters-and-controller-arguments

但我想使用查询字符串代替例如:http://a.com/test?name=foo

怎么做?对我来说只有 3 个解决方案:

How to do that ? For me there are only 3 solutions:

• 重新实现ControllerResolverInterface
• 使用自定义 ParamConverter
• $name = $request->query->get('name');

还有其他解决方案吗?

推荐答案

我为那些想要使用转换器的人提供代码:

I provide you the code for those which want to use a converter :

use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
use Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterInterface;
use Symfony\Component\HttpFoundation\Request;

/**
 * Put specific attribute parameter to query parameters
 */
class QueryStringConverter implements ParamConverterInterface{
    public function supports(ParamConverter $configuration) {
        return 'querystring' == $configuration->getConverter();
    }

    public function apply(Request $request, ParamConverter $configuration) {
        $param = $configuration->getName();
        if (!$request->query->has($param)) {
            return false;
        }
        $value = $request->query->get($param);
        $request->attributes->set($param, $value);
    }
}

services.yml :

services.yml :

services:
  querystring_paramconverter:
    class: AppBundle\Extension\QueryStringConverter
    tags:
      - { name: request.param_converter, converter: querystring }

在您的控制器中:

/**
 * @Route("/test")
 * @ParamConverter("name", converter="querystring")
 */
public function action(Request $request, $name) {
  return new Response(print_r($name, true));
}

这篇关于Symfony2:自动映射控制器参数中的查询字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！