更新子節點屬性軌

Question

我在book_room控制器的創建方法是從它在客戶展示頁面父

class BookRoomsController < ApplicationController 
def create 
    @customer = Customer.find(params[:customer_id]) 
    @customer_room = @customer.book_rooms.create(book_rooms_params) 
    flash[:notice] = "Customer has been added to room" 
    redirect_to customer_path(@customer) 
end 
def destroy 
    @customer = Customer.find(params[:customer_id]) 
    @customer_room = @customer.book_rooms.find(params[:id]) 
    @customer_room.destroy 
    flash[:notice] = "Customer room has been deleted" 
    redirect_to customer_path(@customer) 
end 
def edit 
    @customer = Customer.find(params[:customer_id]) 
end 
def update 
    @customer = Customer.find(params[:customer_id]) 
    @customer.book_rooms.update(book_rooms_params) 
    flash[:notice] = "Customer has checked out" 
    redirect_to @customer 
end 
private 
def book_rooms_params 
    params.require(:book_room).permit(:room, :first_name, :last_name, :phone_number, :checked_out) 
end 

末

客戶模型和book_room模型

class Customer < ApplicationRecord 
    has_many :book_rooms 
    accepts_nested_attributes_for :book_rooms 
end 

class BookRoom < ApplicationRecord 
    belongs_to :customer 
end 

<%= form_for [@customer, @customer.book_rooms.build] do |f| %> 
<% @room = Room.all %> 
<%= f.label "Room: "%> 
<%= f.select(:room, @room.collect { |a| [a.room_number, a.id] }) %> 
<%= f.submit "Enter" %> 
<div class="col-md-12"><%= render @customer.book_rooms.order("created_at DESC") %></div> 

這很好地工作，所有的子對象被創建。現在，當我嘗試編輯子屬性不會在所有

繼承人在book_room編輯頁面編輯表單更新/動作

<%= form_for @customer do |f| %> 
<%= f.fields_for :book_rooms, @customer.book_rooms do |f| %> 
    <%= f.check_box :checked_out %> 
<% end %> 
<%= f.submit "Enter" %> 

是不是我做錯了什麼？爲什麼不更新？

客戶控制器

class CustomersController < ApplicationController 
before_action :set_customer, only: [:show, :edit, :update, :destroy] 
# POST /customers.json 
def create 
@customer = Customer.new(customer_params) 
respond_to do |format| 
    if @customer.save 
    format.html { redirect_to @customer, notice: 'Customer was successfully created.' } 
    format.json { render :show, status: :created, location: @customer } 
    else 
    format.html { render :new } 
    format.json { render json: @customer.errors, status: :unprocessable_entity } 
    end 
end 
end 
def update 
respond_to do |format| 
    if @customer.update(customer_params) 
    format.html { redirect_to @customer, notice: 'Customer was successfully updated.' } 
    format.json { render :show, status: :ok, location: @customer } 
    else 
    format.html { render :edit } 
    format.json { render json: @customer.errors, status: :unprocessable_entity } 
    end 
    end 
end 

private 
# Use callbacks to share common setup or constraints between actions. 
def set_customer 
    @customer = Customer.find(params[:id]) 
end 

# Never trust parameters from the scary internet, only allow the white list through. 
def customer_params 
    params.require(:customer).permit(:first_name, :last_name, :phone_number, :sex, :book_rooms_attributes => [:checked_out]) 
end 

Answer 1

在您的客戶控制器： 嘗試改變你的函數customer_params像：

def customer_params 
    params.require(:customer).permit(:first_name, :last_name, :phone_number, :sex, {:book_rooms => [:checked_out]}) 
end 

更多吃茶看here

Answer 2

更改update方法：

def update 
    @customer = Customer.find(params[:customer_id]) 
    if @customer.update_attributes(customer_params) 
    flash[:notice] = "Customer has checked out" 
    redirect_to @customer 
    else 
    ...redirect to edit page with a flash error message ... 
    end 

end 

您還需要修改您的編輯頁面。

<%= form_for(:customer, :url => {:action => 'update', :id => @customer.id}, :method => 'PUT') do |f| %>

Answer 3

嘗試更改URL更新和改變方法patch你會去更新方法。

<%= form_for :customer, url: customer_path(@customer),method: :patch do |f| %> 
    <%= f.fields_for :book_rooms, @customer.book_rooms do |f| %> 
     <%= f.check_box :checked_out %> 
    <% end %> 
<%= f.submit "Enter" %>