使用rails 4，以简单的形式设计多态关联嵌套属性 [英] Devise polymorphic association nested attributes with simple form using rails 4

问题描述

这是我的代码：

用户：

  class User< ActiveRecord :: Base 
 devise：database_authenticatable，
：rememberable，：trackable，，validatable 
 
 belongs_to：loginable，polymorphic：true 
 end 
  

设计师：

 设计师& ActiveRecord :: Base 
 has_one：user，as：：loginable 
 acceptance_nested_attributes_for：user 
 
 end 
  

布局：

 <％= simple_form_for [：admin，@designer] ：html => {：class => 'form-horizo​​ntal'} do | f | ％GT; 
<％if f.error_notification％> 
< div class =alert alert-error淡入> 
< a class =closedata-dismiss =alerthref =＃>& times;< / a> 
<％= f.error_notification％> 
<％if @ designer.errors.any？ ％GT; 
< ul> 
<％@ designer.errors.full_messages.each do | msg | ％GT; 
< li><％= msg％>< / li> 
<％end％> 
< / ul> 
<％end％> 
 
< / div> 
<％end％> 
 
< div class =control-group> 
<％= f.label：profile_name，：class => 'control-label'％> 
< div class =controls> 
<％= f.text_field：profile_name，：class => 'text_field'％> 
< / div> 
< / div> 
 
<％= f.simple_fields_for users do | u | ％GT; 
 
< div class =control-group> 
<％= u.label：email，：class => 'control-label'％> 
< div class =controls> 
<％= u.text_field：email，：class => 'text_field'％> 
< / div> 
< / div> 
 
< div class =control-group> 
<％= u.label：password，：class => 'control-label'％> 
< div class =controls> 
<％= u.password_field：password，：class => 'text_field'％> 
< / div> 
< / div> 
 
< div class =control-group> 
<％= u.label：type，：class => 'control-label'％> 
< div class =controls> 
<％= u.input：role，：label => false do％> 
<％= u.select：role_id，Role.all.map {| r | [r.name，r.id]}％> 
<％end％> 
< / div> 
< / div> 
 
< div class =control-group> 
<％= u.label：firstname，：class => 'control-label'％> 
< div class =controls> 
<％= u.text_field：firstname，：class => 'text_field'％> 
< / div> 
< / div> 
<％end％> 
 
 
< div class =form-actions> 
<％= f.submit nil，：class => 'btn btn-primary'％> 
< / div> 
<％end％> 
  

控制器：

 code> def create 
 @user = User.new（designer_params）
 @designer = Designer.new（designer_params）
 @ user.loginable = @designer 
 
 respond_to do | format | 
如果@ user.save！ &安培;&安培; @ designer.save！ 
 format.html {redirect_to admin_designers_path，notice：'Designer was successfully created。'} 
 format.json {render action：'show'，status：：created，location：admin_designer_path（@designer）} 
 else 
 format.html {render action：'new'} 
 format.json {render json：[designer：@ designer.errors，user：@ user.errors]，status：：unprocessable_entity } 
 end 
 end 
 end 
 
 def designer_params 
 params.permit（：profile_name，：user，user_attributes：[：email，，password，密码，：firstname，：lastname，：address，：邮政编码，：城市，国家，：角色，角色]] 
 end 
  

我的参数似乎忽略了用户属性，我只是因为某些原因看到个人资料名称。

有关如何修复的任何想法这将非常感谢

谢谢！

解决方案

我设法解决我自己的问题。所以我发布的答案希望拯救别人很多时间。

我最终为用户参数创建另一个私有方法

  def designer_params 
 params.require（：designer）.permit（：profile_name，user_attributes：[：email，：password，：password，：firstname， lastname，：address，：postalcode，：city，：country，，role，，role_id] 
 end 
 def user_params 
 params [：designer] [：user_attributes]。 ，：password，：password，：firstname，：lastname，：address，：postalcode，：city，：country，，role，，role_id）
 end 
  

然后使用这些来创建我的关系

  def create 
 @designer = Designer.new（designer_params）
 @user = User.new（user_params）
 @ user.loginable = @designer 
 @ designer.save！ 
 end 
  

如果您无法查看嵌套表单，请确保使用
build_方法

  def new 
 @designer = Designer.new 
 @user = @designer .build_user 
 end 
  

I am making a polymorphic association with devise and simple for but for some reason i cant get the params to work

here is my code:

User:

class User < ActiveRecord::Base
  devise :database_authenticatable,
         :rememberable, :trackable, :validatable

  belongs_to :loginable, polymorphic: true
end

Designer:

class Designer < ActiveRecord::Base
  has_one :user, as: :loginable
  accepts_nested_attributes_for :user

end

Layout:

<%= simple_form_for [:admin, @designer] , :html => { :class => 'form-horizontal' } do |f| %>
    <% if f.error_notification %>
        <div class="alert alert-error fade in">
          <a class="close" data-dismiss="alert" href="#">&times;</a>
          <%= f.error_notification %>
          <% if @designer.errors.any? %>
              <ul>
                <% @designer.errors.full_messages.each do |msg| %>
                    <li><%= msg %></li>
                <% end %>
              </ul>
          <% end %>

        </div>
    <% end %>

    <div class="control-group">
      <%= f.label :profile_name, :class => 'control-label' %>
      <div class="controls">
        <%= f.text_field :profile_name, :class => 'text_field' %>
      </div>
    </div>

    <%= f.simple_fields_for users do |u| %>

        <div class="control-group">
          <%= u.label :email, :class => 'control-label' %>
          <div class="controls">
            <%= u.text_field :email, :class => 'text_field' %>
          </div>
        </div>

        <div class="control-group">
          <%= u.label :password, :class => 'control-label' %>
          <div class="controls">
            <%= u.password_field :password, :class => 'text_field' %>
          </div>
        </div>

        <div class="control-group">
          <%= u.label :type, :class => 'control-label' %>
          <div class="controls">
            <%= u.input :role, :label => false do %>
                <%= u.select :role_id, Role.all.map { |r| [r.name, r.id] } %>
            <% end %>
          </div>
        </div>

        <div class="control-group">
          <%= u.label :firstname, :class => 'control-label' %>
          <div class="controls">
            <%= u.text_field :firstname, :class => 'text_field' %>
          </div>
        </div>
    <% end %>


    <div class="form-actions">
      <%= f.submit nil, :class => 'btn btn-primary' %>
    </div>
<% end %>

Controller:

  def create
    @user = User.new(designer_params)
    @designer = Designer.new(designer_params)
    @user.loginable = @designer

    respond_to do |format|
      if @user.save! && @designer.save!
        format.html { redirect_to admin_designers_path, notice: 'Designer was successfully created.' }
        format.json { render action: 'show', status: :created, location: admin_designer_path(@designer) }
      else
        format.html { render action: 'new' }
        format.json { render json: [designer: @designer.errors, user: @user.errors], status: :unprocessable_entity }
      end
    end
  end

  def designer_params
    params.permit(:profile_name, :user, user_attributes: [:email, :password, :password, :firstname, :lastname, :address, :postalcode, :city, :country, :role, :role_id])
  end

My params seems to ignore the user attributes, i only see profile name for some reason.

Any ideas on how to fix this would be greatly appreciated

Thanks!

解决方案

I managed to resolve my own issues. so i am posting the answer hoping to save someone else lots of time.

i ended up creating another private method for the user params

  def designer_params
    params.require(:designer).permit(:profile_name, user_attributes: [:email, :password, :password, :firstname, :lastname, :address, :postalcode, :city, :country, :role, :role_id])
  end
  def user_params
    params[:designer][:user_attributes].permit(:email, :password, :password, :firstname, :lastname, :address, :postalcode, :city, :country, :role, :role_id)
  end

and then using those to create my relationship

  def create
    @designer = Designer.new(designer_params)
    @user = User.new(user_params)
    @user.loginable = @designer
    @designer.save!
  end

also if you are having trouble viewing the nested form make sure to use the build_ method

  def new
    @designer = Designer.new
    @user = @designer.build_user
  end

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