此Symfony2路线有什么问题？ [英] What's wrong with this Symfony2 route?

问题描述

我已经使用注释设置了一条路线。在我看来正确，Symfony2说错了。这是路线：

I've set up a route using annotations. Looks right to me, Symfony2 says it's wrong. Here's the route:

@Route("/news/{id}/{slug}", name="newsarticle")

以下是我认为与路线匹配的示例网址：

Here's a sample URL which I think matches the route:

http://somesite.com/news / 202 / my-news-title

这是函数骨架：

public function newsArticleAction($id, $slug)
{

}

我在这里想念什么？我收到500错误，日志显示：

What am I missing here? I get a 500 error and the log says:

[2012-10-30 20:36:35] request.INFO：匹配的路由 newsarticle（参数： _ controller： App\SiteBundle\Controller\DefaultController :: newsArticleAction， id： 202， slug： my-news-title， _ route： newsarticle）[] []
[2012-10-30 20:36:36] app.INFO：来自侦听器： newsarticle路由具有一些缺少的必需参数（ id）。 [] []
[2012-10-30 20:36:36] request.CRITICAL：Symfony\Component\Routing\Exception\MissingMandatoryParametersException： newsarticle路由缺少一些必需参数（ ID）。 （未捕获的异常）在/home/user/app/cache/prod/classes.php行676 [] []

[2012-10-30 20:36:35] request.INFO: Matched route "newsarticle" (parameters: "_controller": "App\SiteBundle\Controller\DefaultController::newsArticleAction", "id": "202", "slug": "my-news-title", "_route": "newsarticle") [] [] [2012-10-30 20:36:36] app.INFO: From listener: The "newsarticle" route has some missing mandatory parameters ("id"). [] [] [2012-10-30 20:36:36] request.CRITICAL: Symfony\Component\Routing\Exception\MissingMandatoryParametersException: The "newsarticle" route has some missing mandatory parameters ("id"). (uncaught exception) at /home/user/app/cache/prod/classes.php line 676 [] []

推荐答案

将URL匹配到路由时出现错误，而不是 出现，但是从路由生成URL时出现此错误。

This error comes up not when matching a URL to a route, but when generating a URL from a route.

在项目中搜索 path（'newsarticle'或 generateUrl（'newsarticle'。您应该尝试在不传递所有必需参数的情况下生成URL，例如：

Search your project for path('newsarticle' or generateUrl('newsarticle'. You should find an attempt to generate a URL without passing all the needed parameters — something like:

{{ path('newsarticle', {'slug': news.slug} }}

必须看起来像这样：

{{ path('newsarticle', {'id': news.id, 'slug': news.slug} }}

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