Ruby on rails 验证时出错

我的Ruby on Rails代码中有一个问题：

 class SessionsController < ApplicationController
      def new
    @title = "Sign in"
    end
    def destroy
    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
    sign_in user
    redirect_to user
    end
    end
    def destroy
    sign_out
    redirect_to root_path
    end
    end

class sessioncontroller

错误消息：

private method `has_password?' called for #<User:0xb729d558>
app/models/user.rb:72:in `authenticate'
app/controllers/sessions_controller.rb:8:in `create'

private方法'has_password'已被调用#
app/models/user.rb:72:in'authenticate'
app/controllers/sessions\u controller.rb:8:in'create'

---

我该如何解决这个问题？

对于用户身份验证，我建议您使用gems。下面是我在开发中更喜欢的gems。朋友，我认为这会有所帮助

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