Question

所以我想尝试建立用户个人资料的链接！所以我在用户的控制器中有这个：

class UsersController < ApplicationController

  def new
    #defining the "@user" object for the form_for
    @user = User.new    
  end

  #defining a function for the "show" html file
  def show
    #get user id by URL address
    @user = User.find(params[:id])
  end

  #handling user login succes or failure
  def create
    @user = User.new(params[:user])
    if @user.save

        #using "flash" variable Ruby
        #flash[:success] = "Welcome to the Sample App!" <<< use this !!

        #render success page
        redirect_to @user
    else
        #render failure page (using error partial page)
        render 'new'
    end
  end

  #mine to show user profile
  def show_user

    render 'show'

  end
end

在我的routes.rb中我得到了：

DemoApp::Application.routes.draw do

  get "intergration_test/authentication_pages"

  #Removed!
  #get "users/new"

  #ROOT page 
  root to: 'static_pages#home'

  #My routes
  match '/user_profile', to: 'users#show_user'

  #REST architecture for users
  resources :users

  #including the Sessions action
  resources :sessions, only: [:new, :create, :destroy]

  match '/signup',  to: 'users#new'
  match '/signin',  to: 'sessions#new'
  #Note the use of via: :delete for the signout route, which indicated that it should be invoked using an HTTP DELETE request
  match '/signout', to: 'sessions#destroy', via: :delete

end

那为什么呢

  #mine to show user profile
  def show_user

    render 'show'

  end

给我发错误：

undefined method `email' for nil:NilClass

就像用户是空的！我已经登录了！所以我应该有一个用户活跃。即使我使用redirect_to @user它也不起作用！帮助

Answer 1

我假设show模板可以通过@user实例变量访问'user'。如果是这样，那么您需要设置实例变量：

def show_user
 @user = current_user // Or other method for getting the logged in user. 
 render 'show'
end

Answer 2

假设您在索引页面中，并且您想创建一个链接以重定向到用户，您可以使用以下内容：

<%= link_to 'Show User', current_user %>

用户是用户对象，从默认的休息路径开始，您将显示页面的操作，因此无需在控制器“show_user”中创建操作

您可以提供控制器的视图以及如何调用show_user操作

随时重定向到用户的个人资料。 Ruby on Rails

2 个答案: