Ruby on rails ：0xc104ef4>

我有3个嵌套资源：sources、twitter\u source和twitter\u aggregation\u方法

其各自模型的关系如下所示：

resources :sources do
 resources :rss_sources
   resources :twitter_sources do
     resources :twitter_aggregation_methods
     resources :influencer_trends do
       resources :trends
     end
   end
end

<%= form_for([@twitter_source, @twitter_aggregation_method]) do |f| %>
  <% if @twitter_aggregation_method.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@twitter_aggregation_method.errors.count, "error") %> prohibited this twitter_aggregation_method from being saved:</h2>

  <ul>
  <% @twitter_aggregation_method.errors.full_messages.each do |msg| %>
    <li><%= msg %></li>
  <% end %>
  </ul>
</div>
<% end %>

<div class="field">
  <%= f.label :twitter_source_id %><br>
  <%= f.text_field :twitter_source_id, value: @twitter_source.id %>
</div>
<div class="field">
  <%= f.label :aggregation_method %><br>
  <%= f.text_field :aggregation_method %>
</div>
<div class="actions">
<%= f.submit %>

资料来源.rb

twitter_source.rb

twitter_聚合_方法.rb

config/routes.rb的设置如下：

resources :sources do
 resources :rss_sources
   resources :twitter_sources do
     resources :twitter_aggregation_methods
     resources :influencer_trends do
       resources :trends
     end
   end
end

<%= form_for([@twitter_source, @twitter_aggregation_method]) do |f| %>
  <% if @twitter_aggregation_method.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@twitter_aggregation_method.errors.count, "error") %> prohibited this twitter_aggregation_method from being saved:</h2>

  <ul>
  <% @twitter_aggregation_method.errors.full_messages.each do |msg| %>
    <li><%= msg %></li>
  <% end %>
  </ul>
</div>
<% end %>

<div class="field">
  <%= f.label :twitter_source_id %><br>
  <%= f.text_field :twitter_source_id, value: @twitter_source.id %>
</div>
<div class="field">
  <%= f.label :aggregation_method %><br>
  <%= f.text_field :aggregation_method %>
</div>
<div class="actions">
<%= f.submit %>

当我尝试添加一个新的twitter\u aggregation\u方法时，出现以下错误：

NoMethodError in TwitterAggregationMethods#new

Showing /home/notebook/work/abacus/app/views/twitter_aggregation_methods/_form.html.erb where line #1 raised:

undefined method `twitter_source_twitter_aggregation_methods_path' for #<#<Class:0xb982e10>:0xc104ef4>

---

错误指向此部分的第一行

查看定义的资源，twitter\u source\u twitter\u aggregation\u methods\u path不存在。因此，出现了错误。 您可以执行rake路由并检查前缀，以了解所有路由都存在

从TwitterAggregationMethodsnew，您将期望转到TwitterAggregationMethodscreate，以便以以下形式传递源的实例：

替换

<%= form_for([@twitter_source, @twitter_aggregation_method]) do |f| %>

与

---

并在TwitterAggregationMethodsnew中设置@source。

我已经按照建议更改了我的twitter\u aggregation\u方法的部分和创建操作的形式，并且成功了。我已经使用rake路由的前缀纠正了twitter\u aggregation\u方法视图中的一些路由问题

<%= form_for([@twitter_source, @twitter_aggregation_method]) do |f| %>

<%= form_for([@source, @twitter_source, @twitter_aggregation_method]) do |f| %>