RailsTutorial Sessions：登录不成功并注销导致路由错误

Question

跟随Hartl的railtutorial。当我尝试登录时，它会将我带到正确的页面，但是“成功登录！”不会在界面上闪烁。此外，当我尝试退出时，出现路由错误：No route matches [GET] "/sessions/1"。

任何帮助，将不胜感激！

这里是我的sessions_controller.rb：

类SessionsController < ApplicationController的

def new 
    @title = "Log in" 
end 

def create 
    user = User.authenticate(params[:session][:email], 
          params[:session [:password])  
    if user.nil? 
    flash.now[:error] = "Invalid email/password combination." 
    @title = "Sign in" 
    render 'new' 
    else 
    flash[:success] = "Successful login!" 
    sign_in user 
    redirect_back_or user 
    end 
end 

def destroy 
    sign_out 
    redirect_to root_path 
end 

end 

这里是我的routes.rb：

SampleApp::Application.routes.draw do 

    #resources :users this is the line I removed to get my code to work 
    resource :user #this is the lined I added to get my code to work 

    resources :sessions, :only => [:new, :create, :destroy] 


    match '/sessions', :to => 'users#show' 
    match '/signup', :to => 'users#new' 
    match '/login', :to => 'sessions#new' 
    match '/logout', :to => 'sessions#destroy' 

    root :to => 'pages#home' 

更改resources :users到resource :user似乎让我“登录“和”退出“，除了在用户界面上没有出现闪存成功。这导致我相信我的创建方法存在错误。

这里是我的sessions_helper.rb：

module SessionsHelper 

def sign_in(user) 
    cookies.permanent.signed[:remember_token] = [user.id, user.salt] 
    self.current_user = user 
end 


def signed_in? 
    !current_user.nil? 
end 

def current_user=(user) 
    @current_user = user 
end 

def current_user 
    @current_user ||= user_from_remember_token 
end 

def current_user?(user) 
    user == current_user 
end 

def sign_out 
    cookies.delete(:remember_token) 
    self.current_user = nil 
end 

def redirect_back_or(default) 
    redirect_to(session[:return_to] || default) 
    clear_return_to 
end 

private 

def user_from_remember_token 
    User.authenticate_with_salt(*remember_token) 
end 

def remember_token 
    cookies.signed[:remember_token] || [nil, nil] 
end 

def store_location 
    session[:return_to] = request.fullpath 
end 

def clear_return_to 
    session[:return_to] = nil 
end 
end 

编辑：解决方案张贴在代码。

Answer 1

我想你应该用户只需flash[:success]和flash[:error]而不是flash.now

和你有什么使用链接登录电子呢？