Ruby on rails 嵌套属性并在一个控制器（父控制器）中创建两个独立模型的实例

我的应用程序有两种模式，租户（公寓）和用户（设计）。我已经这样做了，所以两个模型的属性都可以通过一个表单设置，使用嵌套属性。问题在于提交表单时只创建了租户实例，而不是用户实例

user.rb

class User < ApplicationRecord
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable

  belongs_to :tenant
  # attr_accessible :tenant
end

tenants/new.html.erb（实际上是_form.html.erb，但其在tenants/new中呈现）

---

您允许用户_属性，但将用户作为参数获取，因此

更新

<%= form.fields_for :user do |f| %>

与

因此，在更新期间不会创建新记录

def new
    @tenant = Tenant.new
    @user = User.new
    render layout: false
end

def create
    @tenant = Tenant.new(tenant_params)
    @tenant.update_attribute :subdomain, @tenant.company.downcase
    respond_to do |format|
      if @tenant.save 
        format.html { redirect_to "http://#{@tenant.subdomain}.lvh.me:3000/users/sign_in", notice: 'Domain was successfully created.' }
        #format.html { redirect_to new_user_registration_path, notice: 'Tenant was successfully created.' }
        @user = @tenant.users.create(params[:user])
        format.json { render :show, status: :created, location: @tenant }
      else
        format.html { render :new }
        format.json { render json: @tenant.errors, status: :unprocessable_entity }
      end
    end
  end


private

def tenant_params
      params.require(:tenant).permit(:company, :subdomain,
        user_attributes: [ :email, :first_name, :last_name, :password, :password_confirmation ])
end

<%= form_with(model: tenant, local: true) do |form| %>
  <% if tenant.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(tenant.errors.count, "error") %> prohibited this tenant from being saved:</h2>

      <ul>
      <% tenant.errors.full_messages.each do |message| %>
        <li><%= message %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <%= form.fields_for :user do |f| %>
    <div class="field">
      <%= f.label :first_name %>
      <%= f.text_field :first_name %>
    </div>

    <div class="field">
      <%= f.label :last_name %>
      <%= f.text_field :last_name %>
    </div>

    <div class="field">
      <%= f.label :email %>
      <%= f.text_field :email %>
    </div>

    <div class="field">
      <%= form.label :company %>
      <%= form.text_field :company %>
    </div>

    <%= f.label :password %>
    <%= f.password_field :password %>

    <%= f.label :password_confirmation %>
    <%= f.password_field :password_confirmation %>
  <% end %>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>

Processing by TenantsController#create as HTML
Parameters: {"utf8"=>"V", "authenticity_token"=>"a6YvYm/RcMI8phxTmOPD4Vi43ooqE
v0piV5tGvucMK4f7FZSWPmlAGcme+f6Wq+S26+m9ni6fmGBW6t6wZ/yFw==", "tenant"=>{"user"=
>{"first_name"=>"John", "last_name"=>"Smith", "email"=>"jsmith@gmail.com", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}, "company"=>"Pepsi"},
"commit"=>"Create Tenant"}
Unpermitted parameter: :user

<%= form.fields_for :user do |f| %>

<%= form.fields_for :users do |f| %>

 params.require(:tenant).permit(:company, :subdomain,
            user_attributes: [ :email, :first_name, :last_name, :password, :password_confirmation ])

params.require(:tenant).permit(:company, :subdomain,
            user_attributes: [:id, :email, :first_name, :last_name, :password, :password_confirmation ])