Ruby on rails SessionController#create（未定义的方法`当前用户）第9章中的命名错误

当我登录到我在第9章末尾根据Hartl的rail教程制作的示例应用程序时，我得到了这个错误。我到处找，但找不出什么可能很明显

会话控制器中的NoMethodError#创建

会话“”的未定义方法“当前用户=”

错误发生在这2个文件中，代码如下

app/helpers/sessions\u helper.rb:7:in

登录'
app/controllers/sessions\u controller.rb:9:in

create'

app/helpers/sessions\u helper

  module SessionsHelper

  def sign_in(user)
    remember_token = User.new_remember_token
    cookies.permanent[:remember_token] = remember_token
    user.update_attribute(:remember_token, User.encrypt(remember_token))
    self.current_user = user
  end

  def signed_in?
    !current_user.nil?
  end

  def current_user
    remember_token = User.encrypt(cookies[:remember_token])
    @current_user ||= User.find_by(remember_token: remember_token)
  end

  def current_user?(user)
    user == current_user
  end

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

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

  def store_location
    session[:return_to] = request.url if request.get?
  end
end

class SessionsController < ApplicationController

  def new
  end

  def create
    user = User.find_by(email: params[:session][:email].downcase)
    if user && user.authenticate(params[:session][:password])
      sign_in user
      redirect_back_or user
    else
      flash.now[:error] = 'Invalid email/password combination'
      render 'new'
    end
  end

  def destroy
    sign_out
    redirect_to root_url
  end
end

应用程序/控制器/会话\u控制器

  module SessionsHelper

  def sign_in(user)
    remember_token = User.new_remember_token
    cookies.permanent[:remember_token] = remember_token
    user.update_attribute(:remember_token, User.encrypt(remember_token))
    self.current_user = user
  end

  def signed_in?
    !current_user.nil?
  end

  def current_user
    remember_token = User.encrypt(cookies[:remember_token])
    @current_user ||= User.find_by(remember_token: remember_token)
  end

  def current_user?(user)
    user == current_user
  end

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

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

  def store_location
    session[:return_to] = request.url if request.get?
  end
end

class SessionsController < ApplicationController

  def new
  end

  def create
    user = User.find_by(email: params[:session][:email].downcase)
    if user && user.authenticate(params[:session][:password])
      sign_in user
      redirect_back_or user
    else
      flash.now[:error] = 'Invalid email/password combination'
      render 'new'
    end
  end

  def destroy
    sign_out
    redirect_to root_url
  end
end

class sessioncontroller

查看上的清单8.20。您似乎错过了定义

current\u user=

方法的步骤

  def current_user=(user)
    @current_user = user
  end

---

谢谢你看，但我想不是这样的。清单9.16将“@current_user=user”更改为“user==current_user”@Abraham-Peter是正确的。在会话助手中的

sign\u In

方法中，您正在调用

self.current\u user=

，但该方法不存在。清单9.16引用了

当前用户？

方法。@Peter-你是对的，我错了。作为一个傻瓜，我没有正确理解你的意思。我完全错过了！谢谢veritas1帮我看。