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我有一个简单的博客应用程序。添加帖子时，我希望将用户 ID 添加到帖子中，以便当用户登录时，他只能看到他的帖子。我要添加到帖子中的 id 是当前登录用户的 id。
如何以及在何处将 id 属性添加到帖子模型中？

会话控制器：

    class SessionsController < ApplicationController
  def new

  end

  def create
    user = User.authenticate(params[:username], params[:password])
    if user
      session[:user_id] = user.id
      redirect_to blog_url, :notice => "Logged in!"
    else
      flash.now.alert = "Invalid email or password"
      render "new"
    end
  end

  def destroy
    session[:user_id] = nil
    redirect_to root_url, :notice => "Logged out!"
  end
end


应用控制器：

class ApplicationController < ActionController::Base
  protect_from_forgery

  before_filter :authenticate

  helper_method :current_user

  private

  def current_user
    @current_user ||= User.find(session[:user_id]) if session[:user_id]
  end
   def authenticate
     redirect_to log_in_path unless session != nil
   end
end


帖子控制器：

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])
    post.user_id = session

    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

提前致谢！

4

1 回答 1

5

在PostsController

def create
  @post = current_user.posts.build(params[:post])
  ...
end
于 2013-05-16T02:17:52.720 回答