Question

我有2个模特

father.rb：

class Father < ActiveRecord::Base
    has_many :sons, dependent: :destroy
end

son.rb

class Son < ActiveRecord::Base
    belongs_to :father
end

的routes.rb

Family::Application.routes.draw do
  resources :fathers do
    resources :sons
  end
end

rake路线输出：

father_sons GET    /fathers/:father_id/sons(.:format)          sons#index
                POST   /fathers/:father_id/sons(.:format)          sons#create
 new_father_son GET    /fathers/:father_id/sons/new(.:format)      sons#new
edit_father_son GET    /fathers/:father_id/sons/:id/edit(.:format) sons#edit
     father_son GET    /fathers/:father_id/sons/:id(.:format)      sons#show
                PATCH  /fathers/:father_id/sons/:id(.:format)      sons#update
                PUT    /fathers/:father_id/sons/:id(.:format)      sons#update
                DELETE /fathers/:father_id/sons/:id(.:format)      sons#destroy
        fathers GET    /fathers(.:format)                          fathers#index
                POST   /fathers(.:format)                          fathers#create
     new_father GET    /fathers/new(.:format)                      fathers#new
    edit_father GET    /fathers/:id/edit(.:format)                 fathers#edit
         father GET    /fathers/:id(.:format)                      fathers#show
                PATCH  /fathers/:id(.:format)                      fathers#update
                PUT    /fathers/:id(.:format)                      fathers#update
                DELETE /fathers/:id(.:format)                      fathers#destroy

schema.rb

ActiveRecord::Schema.define(version: 20130626013724) do

  create_table "fathers", force: true do |t|
    t.string   "name"
    t.integer  "age"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "sons", force: true do |t|
    t.string   "name"
    t.integer  "age"
    t.integer  "father_id"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  add_index "sons", ["father_id"], name: "index_sons_on_father_id"

end

问题是我应该为下面标有 AA，BB，CC和DD 的地方指定哪些路径和参数？这是app / views / sons / index.html.erb文件的一部分：

 <% @sons.each do |son| %>
      <tr>
        <td><%= son.name %></td>
        <td><%= son.age %></td>
         <td><%= link_to 'Show', AA %></td>
        <td><%= link_to 'Edit', BB(CC) %></td>
        <td><%= link_to 'Destroy', DD, method: :delete, data: { confirm: 'Are you sure?' } %></td>
      </tr>
    <% end %>

我可以添加一个资源子。问题是指定它的显示和编辑路径。

代码也可用on github。

Answer 1

阅读Nested Rsources和creating-nested-resources

<td><%= link_to 'Show', father_son_path(@father, son) %></td>
<td><%= link_to 'Edit', edit_father_son_path(@father, son) %></td>
<td><%= link_to 'Destroy', [@father, son], confirm: 'Are you sure?', method: :delete %></td>

Answer 2

用于修改edit_father_son(son.father, son) for show father_son(son.father, son) 我是在记忆中说话，也许是（儿子，儿子，父亲），但你现在应该有这个想法。

为嵌套资源的“显示”和“编辑”操作指定正确的路径

2 个答案: