ruby-on-rails - 未知属性 `user_id'

Question

我正在尝试将我使用 Devise 创建的用户与帖子相关联。但是每当我尝试创建以用户身份登录的帖子时，我都会收到标题中提到的错误。非常感谢:)

 class PostsController < ApplicationController
  def index
    @posts = Post.all
  end

  def new
    @post = Post.new
  end

  def create
    @post = Post.new(params.require(:post).permit(:task))
    @post.user = current_user
    if @post.save
        redirect_to @post, alert:"Post created successfully."
    else
        redirect_to new_post_path, alert: "Error creating post."
    end
  end

  def show
    @post = Post.find(params[:id])
  end

end

用户模型

class User < ActiveRecord::Base

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  has_many :posts
end

后模型

class Post < ActiveRecord::Base

validates_presence_of :task
belongs_to :user

end

Answer 1

对于添加用户 id 以固定以下对我有用

rails g migration add_user_to_pin user_id:integer