ASP.NET MVC 3 - 区域路由的边缘情况

发布于 2024-11-25 11:39:10 字数 879 浏览 3 评论 0原文

我有一个页面，用户可以在其中针对产品“提出问题”。

路线是：

context.MapRoute(
                "Q&A - Ask - by Product",
                "{someProductUri}/questions/ask",
                new { controller = "Questions", action = "Ask" }
            );

匹配：

/汽车/问题/询问
/电话/问题/询问

操作如下：

public class QuestionsController : Controller
{
    public ViewResult Ask(string someProductUri)
    {
      // ...
    }
}

现在，问题是，我还需要允许用户在页面本身上选择产品，例如，在 URI 中没有预先选择产品。

因为该控制器位于区域中，所以该“默认 URL”将如下所示：

/myarea/问题/询问

那么发生的事情是，当我开始执行操作时，“someProductUri”被设置为“myarea”，导致各种悲伤。

我想对两组 URL 重复使用相同的操作/视图，但我不希望在默认 URL 时将路由值设置为“myarea”。

希望这是有道理的——有什么想法吗？

我需要单独的路线吗？我可以添加一个路由约束，使“someProductUri”不能是“myarea”，这样它就与路由不匹配并回退到默认值吗？

原文

I have a page where user's can "Ask a Question" against a product.

The route is:

context.MapRoute(
                "Q&A - Ask - by Product",
                "{someProductUri}/questions/ask",
                new { controller = "Questions", action = "Ask" }
            );

Which matches:

/car/questions/ask
/phone/questions/ask

Here's the action:

public class QuestionsController : Controller
{
    public ViewResult Ask(string someProductUri)
    {
      // ...
    }
}

Now, the problem is, i also need to allow the user to select the product on the page itself, e.g with no product pre-chosen in the URI.

Because this controller is in an area, this "default URL" will be like this:

/myarea/questions/ask

So what's happening is, when i get to the action, "someProductUri" is set to "myarea", causing all sorts of grief.

I want to re-use the same action/view for both sets of URL's, but i don't want the route value to be set to "myarea" when it's the default URL.

Hope that makes sense - any ideas?

Do i need a seperate route? Can i add a route constraint so that the "someProductUri" can't be "myarea", so that it doesn't match the route and falls back to the default?

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浊酒尽余欢 2024-12-02 11:39:11

我已经有太多路线，所以我不想仅针对这种边缘情况添加另一条路线。

所以我最终使用了一个路由约束：

public class NotEqualToAreaName : IRouteConstraint
{
   public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
   {
      return String.Compare(values[parameterName].ToString(), route.DataTokens["area"].ToString(), true) != 0;
   }    
}

非常简单，而且通用 - 所以我可以在遇到这种类型的边缘情况时随时重复使用它。

I already have too many routes, so i didn't want to add another just for this edge case.

So i ended up using a route constraint:

public class NotEqualToAreaName : IRouteConstraint
{
   public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
   {
      return String.Compare(values[parameterName].ToString(), route.DataTokens["area"].ToString(), true) != 0;
   }    
}

Pretty simple, and generic - so i can re-use it anytime i come across this type of edge case.

回复收藏 0 原文

去了角落 2024-12-02 11:39:11

您需要为该区域添加单独的路线：

context.MapRoute(
            "Q&A - Ask - by Product",
            "myarea/questions/ask",
            new { controller = "Questions", action = "Ask" }
        );

You need to add a separate route for the area:

context.MapRoute(
            "Q&A - Ask - by Product",
            "myarea/questions/ask",
            new { controller = "Questions", action = "Ask" }
        );

回复收藏 0 原文

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