设计如何将当前用户关联到帖子?

时间:2011-05-15 15:24:44

标签: ruby-on-rails ruby-on-rails-3 devise

如何将我登录的当前用户与我的帖子关联?

我的帖子模型:

before_create :owner
belongs_to :user
def owner
    self.user_id = current_user.id
end

但是这种因为我不能在模型中使用current_user方法而起作用。

这是我的控制器:

class PostsController < ApplicationController
before_filter :authenticate_user!

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

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

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

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @post }
    end
  end

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

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

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

  # POST /posts
  # POST /posts.xml
  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.xml  { render :xml => @post, :status => :created, :location => @post }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @post.errors, :status => :unprocessable_entity }
      end
    end
  end

  # PUT /posts/1
  # PUT /posts/1.xml
  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.xml  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @post.errors, :status => :unprocessable_entity }
      end
    end
  end

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

    respond_to do |format|
      format.html { redirect_to(posts_url) }
      format.xml  { head :ok }
    end
  end
end

如何建立关联?因此,post user_id coloumn被赋予current_user.id

2 个答案:

答案 0 :(得分:31)

添加

@post.user = current_user

在您的创建操作中。

或者如果has_many :posts模型上有User关联,请执行:

@post = current_user.posts.new(params[:post])

if @post.save
  ...

答案 1 :(得分:22)

我建议您通过用户创建帖子:

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

这会自动为您填写user_id