在Ruby on Rails中創建登錄表單

Question

我正在嘗試開發一個允許用戶爲其個人集合創建，修改和添加類別的系統。用戶可以查看個人收藏列表，但要添加或修改要創建的個人收藏的個人收藏，並且用戶必須登錄。

決定從RailsCasts的https://github.com/ryanb/railscasts-episodes/tree/master/episode-250/revised/blog-after/app這裏的文件中註冊登錄部分的源代碼。

除登錄和註冊表單外的其他所有工作。

當試圖加載我收到以下消息的頁面：

NoMethodError in UsersController#create 

undefined method `password_digest=' for #<User:0x007fd8540db770> 
Rails.root: /Users/laurens14/collections 

Application Trace | Framework Trace | Full Trace 
app/controllers/users_controller.rb:14:in `new' 
app/controllers/users_controller.rb:14:in `create' 
Request 

Parameters: 

{"utf8"=>"✓", 
"authenticity_token"=>"rqrGlYSK5eSl9+P3WHkSgazwi2zyQyJUiB/G9G6UOU4=", 
"user"=>{"email"=>"laurens14@icloud.com", 
"password"=>"[FILTERED]", 
"password_confirmation"=>"[FILTERED]"}, 
"commit"=>"Sign Up"} 

這是所使用的控制器的源代碼。

users_controllers：

class UsersController < ApplicationController 
def new 
    @user = User.new 
end 

def create 
    @user = User.new(params[:user]) 
    if @user.save 
     session[:user_id] = @user.id 
     redirect_to root_url, notice: "Thank you for signing up!" 
     else 
     render "new" 
    end 
end 
end 

Sessions_controller：

class SessionsController < ApplicationController 
def new 
end 

def create 
    user = User.find_by_email(params[:email]) 
    if user && user.authenticate(params[:password]) 
     session[:user_id] = user.id 
     redirect_to root_url, notice: "Logged in!" 
     else 
     flash.now.alert = "Email or password is invalid" 
     render "new" 
    end 
    end 

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

application_controller：

class ApplicationController < ActionController::Base 
protect_from_forgery 

private 

def current_user 
    @current_user ||= User.find(session[:user_id]) if session[:user_id] 
end 
helper_method :current_user 

def authorize 
    redirect_to login_url, alert: "Not authorized" if current_user.nil? 
end 
end 

Collections_controller

class CollectionsController < ApplicationController 
    # GET /collections 
    # GET /collections.json 
    def index 
    @collections = Collection.all 

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

    def list 
    end 

    # GET /collections/1 
    # GET /collections/1.json 
    def show 
    @collection = Collection.find(params[:id]) 

    respond_to do |format| 
    format.html # show.html.erb 
    format.json { render json: @collection } 
    end 
end 

    # GET /collections/new 
    # GET /collections/new.json 
    def new 
    @collection = Collection.new 

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

    # GET /collections/1/edit 
    def edit 
    @collection = Collection.find(params[:id]) 
    end 

def search 
    @collections = Collection.find(:all, :conditions => ["title LIKE ?", "%#{params[:key]}%"]) 
end 


    # POST /collections 
    # POST /collections.json 
    def create 
@collection = Collection.new(params[:collection]) 

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

# PUT /collections/1 
# PUT /collections/1.json 
def update 
    @collection = Collection.find(params[:id]) 

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

    # DELETE /collections/1 
# DELETE /collections/1.json 
def destroy 
    @collection = Collection.find(params[:id]) 
    @collection.destroy 

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

爲模特的源代碼：

user.rb 

     class User < ActiveRecord::Base 
     has_secure_password 

     attr_accessible :email, :password, :password_confirmation 

     validates_uniqueness_of :email 
     end 


collection.rb 

     class Collection < ActiveRecord::Base 
     attr_accessible :date, :description, :instructions, :title, :category_id 
     belongs_to :category 
    end 


catergory.rb 

      class Category < ActiveRecord::Base 
      attr_accessible :name 
      has_many :Collection 
     end 

這是這是在瑞克路徑文件夾中的代碼：

Collections::Application.routes.draw do 
get 'signup', to: 'users#new', as: 'signup' 
get 'login', to: 'sessions#new', as: 'login' 
get 'logout', to: 'sessions#destroy', as: 'logout' 

resources :users 
resources :sessions 

#resources :collections 

resources :collections do 
    post 'search', :on => :collection 
    get 'list', :on => :collection 


end 

有什麼建議？

感謝

Answer 1

檢查您的用戶模型遷移。它是否有password_digest的列？ （列類型應爲string）

Answer 2

新的DEF塊中添加以下代碼行，然後看看它是否工作：

的respond_to做|格式|

format.html # new.html.erb 
    format.json { render json: @user } 
end