Question

我是新手，并且遇到了一个难以克服的问题。

目标：

我有模型广告＆amp;表格
广告has_many形式| form belongs_to advert
我正在尝试显示广告
我已设法显示广告下的表单数量并将其设为链接
在我的图片示例中，我有一个（工作）广告＆＃34;软件工程师＆＃34;其中有2个表单（应用程序）作为链接提供
我希望用户点击链接（图中）并转到显示该广告下所有表单的页面

enter image description here

目前，当我点击链接（在应用程序下）时，我将被定向到路径forms_path，该路径根据表单控制器指示显示所有表单

可以告诉我如何在表单中编写索引方法控制器不显示所有创建的表单，而只显示a下的表单特定广告

advert_controller.rb

class AdvertsController < ApplicationController
  respond_to :html, :xml, :json
  before_action :set_advert, only: [:show, :edit, :update, :destroy]

  def index
    @userr = Userr.find(params[:userr_id])
    @adverts = @userr.adverts.order("created_at DESC")
    respond_with(@adverts)
  end
end

views / adverts / index.html

<table>
  <thead>
    <tr>
      <th>Title</th>
      <th>applications</th>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <% @adverts.each do |advert| %>
      <tr>
        <td><%= link_to advert.title, userr_advert_path(advert.userr, advert) %></td>
        <td><%= link_to advert.forms.count, forms_path %></td>
      </tr>
    <% end %>
  </tbody>
</table>
<br>

<%= link_to 'add new advert', new_userr_advert_path(current_userr) %>

form_controller.rb

class FormsController < ApplicationController
  respond_to :html, :xml, :json
  before_action :set_form, only: [:show, :edit, :update, :destroy]

  def index
    @forms = Form.all
    respond_with(@forms)
  end
end

的routes.rb

Rails.application.routes.draw do
  resources :forms
  devise_for :userrs
  resources :userrs do
    resources :adverts
  end
end

在我的rails控制台中 - 我设法显示广告下的所有表格：

2.1.2 :308 >   advert = Advert.first
  Advert Load (4.4ms)  SELECT  "adverts".* FROM "adverts"   ORDER BY "adverts"."id" ASC LIMIT 1
 => #<Advert id: 51, title: "software engineer", content: "Lorem ipsum dolor sit amet ac dapibus", category_jobtype_id: 67, category_positiontype_id: 81, salarystart: 1200, salaryend: 2000, category_country_id: 45, city: "accra", town: "tesano estates", postcode: "1206", category_editorialapproval_id: 34, category_applicationrequest_id: 34, created_at: "2015-05-21 21:05:09", updated_at: "2015-05-21 21:05:09", userr_id: 16, category_advert_id: 58> 
2.1.2 :309 > 
2.1.2 :310 >   
2.1.2 :311 >   advert.forms
  Form Load (0.2ms)  SELECT "forms".* FROM "forms"  WHERE "forms"."advert_id" = ?  [["advert_id", 51]]
 => #<ActiveRecord::Associations::CollectionProxy [#<Form id: 4, firstname: "akunorbea", lastname: "artloe", number: 2089587999, email: "akunorbea@gmail.com", currentJob: "developer", currentEmployer: "global reach", category_country_id: 2, advert_id: 51, userj_id: 3, workhere: false, created_at: "2015-05-29 09:09:33", updated_at: "2015-05-29 09:09:33">, #<Form id: 6, firstname: "curtis", lastname: "lewis", number: 208958, email: "curtis@gmail.com", currentJob: "security", currentEmployer: "megan fox", category_country_id: 2, advert_id: 51, userj_id: 4, workhere: false, created_at: "2015-05-29 17:14:41", updated_at: "2015-05-29 17:14:41">]> 
2.1.2 :312 >

所以在我的form_controller.rb索引操作中我输入了以下内容但是我收到了错误

class FormsController < ApplicationController
  respond_to :html, :xml, :json
  before_action :set_form, only: [:show, :edit, :update, :destroy]

  def index
    @advert = Advert.find(params[:id])
    @forms = @advert.forms
    respond_with(@forms)
  end
end

视图/形式/ index.html.erb

<h1>Listing forms</h1>

<table>
  <thead>
    <tr>
      <th>Firstname</th>
      <th>Lastname</th>
      <th>Number</th>
      <th>Email</th>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <% @forms.each do |form| %>
      <tr>
        <td><%= form.firstname %></td>
        <td><%= form.lastname %></td>
        <td><%= form.number %></td>
        <td><%= form.email %></td>
      </tr>
    <% end %>
  </tbody>
</table>

<br>

Answer 1

在routes.rb

中

resources :userrs do
  resources :adverts do
    resources :forms, only: [:index]
  end
end

in views / adverts / index.html.erb

<td><%= link_to advert.forms.count, userr_advert_forms_path(@userr, advert) %></td>

form_controller.rb中的

def index
  @advert = Advert.find(params[:advert_id])
  @forms = advert.forms
end

无法找到没有ID的[Model] - rails4

1 个答案: