" resources：post，除了：：new"使Rails认为路线/ posts / new将指向帖子ID“ new”， [英] "resources :post, except: :new" makes Rails think the route /posts/new would point to a post ID "new"

问题描述

我有以下路线：

resources :success_criteria, except: :new

以下规范失败：

describe SuccessCriteriaController do
  describe 'routing' do
    it 'routes to #new' do
      expect(get('/success_criteria/new')).to_not be_routable
    end
  end
end

失败消息：

Failure/Error: expect(get('/posts/new')).to_not be_routable
expected {:get=>"/posts/new"} not to be routable, but it routes to {:controller=>"posts", :action=>"show", :id=>"new"}

控制器如下所示：

class SuccessCriteriaController < InheritedResources::Base
  load_and_authorize_resource
end

为什么Rails认为 posts / new 是否指向ID为 new 的帖子？那是不对的？

Why does Rails think that posts/new would point to a post with the ID new? That's not right, is it? Does it maybe have to do with InheritedResources?

推荐答案

我相信，如果不对<$ c添加约束，那可能与InheritedResources有关吗？ $ c> show 路线表示它将仅接受数字，您在帖子之后放置的所有内容均映射为 id 转到该路线。

I believe that if you don't add a constraint to your show route saying that it will only accept digits, everything you put after posts are mapped to be an id to that route.

这意味着，如果您尝试访问帖子/内容，则可能会抛出 ActiveRecord 错误，显示找不到带有 id = something 的 Post 。

That means that if your try to access posts/something it would probably throw an ActiveRecord error showing that it couldn't find the Post with id=something.

要添加约束，请添加 constraints ，例如：

To add a constraint, add constraints like this:

resources :success_criteria, except: :new, constraints: { id: /\d+/ }

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