Ruby on Rails修改參考

Question

所以我最初的問題是Association Ruby on Rails。然而，當提到一個帖子時，我所遇到的問題就是它的空白。沒有看到任何東西。經過研究，我相信是因爲當我創建我的測試帖時，我沒有定義與其相關的客戶。

class CustomersController < ApplicationController 

    before_filter :signed_in_customer, only: [:edit, :update] 
    before_filter :correct_customer, only: [:edit, :update] 


    def index 
    @customers = Customer.all 
    end 

    def show 
    @customer = Customer.find(params[:id]) 
    **@posts = @customer.posts** 
    end 

這裏的表單允許我創建一個帖子的時刻。

<%= form_for(@post) do |f| %> 
    <% if @post.errors.any? %> 
    <div id="error_explanation"> 
     <h2><%= pluralize(@post.errors.count, "error") %> prohibited this post from being saved:</h2> 

     <ul> 
     <% @post.errors.full_messages.each do |msg| %> 
     <li><%= msg %></li> 
     <% end %> 
     </ul> 
    </div> 
    <% end %> 
    <div class="field"> 
    <%= f.label :title %><br /> 
    <%= f.text_field :title %> 
    </div> 
    <div class="field"> 
    <%= f.label :description %><br /> 
    <%= f.text_field :description %> 
    </div> 
    <div class="field"> 
    <%= f.label :frienship_group_id %><br /> 
    <%= f.text_field :frienship_group_id %> 
    </div> 
    <div class="field"> 
    <%= f.label :post_size_id %><br /> 
    <%= f.text_field :post_size_id %> 
    </div> 
    <div class="actions"> 
    <%= f.submit %> 
    </div> 
<% end %> 

這是我在創建新表單時使用的。我如何讓自定義更新與customer_id字段中的當前用戶相關的字段？

這裏模型

class Post < ActiveRecord::Base 

    belongs_to :customer 

    validates :title, presence: true 
    validates :description, presence: true 
    validates :customer_id, presence: true 
    validates :frienship_group_id, presence: true 
    validates :Post_size_id, presence: true 

更新：

這裏我new.html.erb爲崗位

<h1>New post</h1> 
<%= render 'form' %> 
<%= link_to 'Back', posts_path %> 

這裏控制器

class PostsController < ApplicationController 

    # GET /posts 
    # GET /posts.json 
    def index 
    @posts = Post.all 

    respond_to do |format| 
     format.html # index.html.erb 
     format.json { render json: @posts } 
    end 
    end 

    # GET /posts/1 
    # GET /posts/1.json 
    def show 
    @post = Post.find(params[:id]) 
     respond_to do |format| 
      format.html # show.html.erb 
      format.json { render json: @post } 
     end 
    end 

    # GET /posts/new 
    # GET /posts/new.json 
    def new 
    @post = Post.new 

    respond_to do |format| 
     format.html # new.html.erb 
     format.json { render json: @post } 
    end 
    end 

    # GET /posts/1/edit 
    def edit 
    @post = Post.find(params[:id]) 
    end 

    # POST /posts 
    # POST /posts.json 
    def create 
    @post = Post.new(params[:post]) 

    respond_to do |format| 
     if @post.save 
     format.html { redirect_to @post, notice: 'Post was successfully created.' } 
     format.json { render json: @post, status: :created, location: @post } 
     else 
     format.html { render action: "new" } 
     format.json { render json: @post.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # PUT /posts/1 
    # PUT /posts/1.json 
    def update 
    @post = Post.find(params[:id]) 

    respond_to do |format| 
     if @post.update_attributes(params[:post]) 
     format.html { redirect_to @post, notice: 'Post was successfully updated.' } 
     format.json { head :no_content } 
     else 
     format.html { render action: "edit" } 
     format.json { render json: @post.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # DELETE /posts/1 
    # DELETE /posts/1.json 
    def destroy 
    @post = Post.find(params[:id]) 
    @post.destroy 

    respond_to do |format| 
     format.html { redirect_to posts_url } 
     format.json { head :no_content } 
    end 
    end 

end 

Answer 1

我相當Rails新手，但我認爲這一點是你如何做到的。我假設你當前登錄的用戶是current_user。

def create 
    @post = current_user.posts.build(params[:post]) 

    respond_to do |format| 
     if @post.save 
     format.html { redirect_to @post, notice: 'Post was successfully created.' } 
     format.json { render json: @post, status: :created, location: @post } 
     else 
     format.html { render action: "new" } 
     format.json { render json: @post.errors, status: :unprocessable_entity } 
     end 
    end 
    end