如何在动态分段中使用Rails 3路线 [英] How to Use Rails 3 Routes with Dynamic Segments

问题描述

在我的Rails 3.2应用程序中，有一个运动模型，其属性为muscle_group和grade_level。我在config / routes.rb中为其定义了以下带有动态细分的路由：

In my Rails 3.2 application, there is an Exercise model with attributes muscle_group and grade_level. I've defined the following route with dynamic segments for it in config/routes.rb:

# config/routes.rb
match "/:muscle_group/grade-:grade_level/:id" => "exercises#show"

正在运行 bundle exec耙路径确认路线确实存在：

Running bundle exec rake routes confirms that the route does indeed exist:

/:muscle_group/grade-:grade_level/:id(.:format) exercises#show

数据库包含带有以下内容的运动记录：

The database contains an Exercise record with:

• id = 5


• muscle_group =腹部


• grade_level = 1

但是当我将浏览器指向 http：// localhost：3000 / abdominal / grade-1 / 5 ，我得到：

And yet when I point my browser to http://localhost:3000/abdominal/grade-1/5, I get:

Routing Error
No route matches [GET] "/abdominal/grade-1/5"
Try running rake routes for more information on available routes.

如何获得具有动态细分的这条路线？

How can I get this route with dynamic segments to work?

推荐答案

我使用的路由声明几乎可以正常工作。出于某些原因，使用连字符而不将 grade_level 作为自己的 / 分隔的子字符串不存在问题。当我切换到使用路由声明时：

The route declaration I was using was almost functional. For some reason there is an issue with using a hyphen and not having grade_level as its own /-separated substring. When I switched to using the route declaration:

match "/:muscle_group/grade/:grade_level/:id" => "exercises#show"

而不是原始版本：

match "/:muscle_group/grade-:grade_level/:id" => "exercises#show"

http：// localhost：3000 / abdominal / grade / 1/5 是有效的路由。

我宁愿使用连字符这条路线，并希望我知道如何进行此工作，但这不是重中之重。如果有人知道如何使其与连字符一起使用，请告诉我。

I would prefer to have this route with the hyphen and wish I knew how to make that work, but it is not a top priority. If anyone knows how to make it work with the hyphen, please let me know.

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