小编use*_*289的帖子

所以我按照"从头开始验证"的轨道进行了操作 - http://railscasts.com/episodes/250-authentication-from-scratch

我知道rails 4不使用attr_accessible.我在我的用户控制器中将user_params定义为私有方法.出于某种原因,rails给了我一个用户参数的未定义错误.我正在开发另一个rails应用程序,我检查了它中的post控制器.除了工作之外,它完全一样.知道这里的问题是什么吗？

users_controller.rb

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

  def create
    @user = User.create(user_params)
  if @user.save
   redirect_to root_url, :notice => "Signed up!"
 else
   render "new"
   end
private

def user_params
  params.require(:user).permit(:email, :password, :password_confirmation)
 end    

错误消息:未定义的局部变量或方法`user_params'for#

完整堆栈跟踪:

app/controllers/create' actionpack (4.1.1) lib/action_controller/metal/implicit_render.rb:4:inusers_controller.rb :7:在send_action'actionpack(4.1.1)lib/abstract_controller/base.rb:189:in process_action' actionpack (4.1.1) lib/action_controller/metal/rendering.rb:10:inprocess_action'actionpack(4.1.1)lib/abstract_controller/callbacks.rb:20:in block in process_action' activesupport (4.1.1) lib/active_support/callbacks.rb:113:incall 'activesupport(4.1.1)lib/active_support/callbacks.rb:113:在call' activesupport (4.1.1) lib/active_support/callbacks.rb:229:in块中停止'activesupport(4.1.1)lib/active_support/callbacks.rb:229:在call' activesupport (4.1.1) lib/active_support/callbacks.rb:229:in块中停止'activesupport(4.1.1)lib /active_support/callbacks.rb:166:in call' activesupport (4.1.1) lib/active_support/callbacks.rb:166:in 阻止'activesupport(4.1.1)lib/active_support/callbacks.rb:166:在call' activesupport …