奇怪的Rails路由行为：在嵌套资源中交换了两个ID [英] Strange Rails Routing behaviour: two ids swapped around in nested resources

问题描述

我在我的应用中设置了以下路由（表单属于站点）：

I have the following routing set up in my app (forms belong to a site):

map.resources :sites do |site| 
 site.resources :forms
end 

但是，当我尝试去到使用助手进行表单编辑（或类似）的路径（例如

However, when I try to go to a path for edit (or such) for a form using the helpers (e.g.

edit_site_form_path(form)

或

<%= link_to 'Show', [:site, form] %>

我的网址即将到来换出ID（/ sites / 5 / forms / 1），其中5是表单ID，1是站点ID，来自/ sites / 1页面。

my URLs are coming out with the ID's swapped over ( /sites/5/forms/1 ) where 5 is the form Id, and 1 is the site id. This is from the page /sites/1.

Help（？）

推荐答案

edit_site_form_path 方法必须具有两个参数site_id和form_id，因此在您的示例中，您仅传递了form_id。第一个参数是模型中方法中第一个出现的参数，在这种情况下，它是 site 。第二个参数是form_id。

The edit_site_form_path method has to have two parameters, the site_id and the form_id. So in your example you are only passing in the form_id. The first parameter is what ever model comes first in the method, in this case it is site. The second parameter is the form_id.

经过修改的路径方法可能看起来像这样

A revamped path method might look like this

 edit_site_form_path(form.site, form)

（假设您有模型表格其中属于：site ）

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