SessionsController中的NoMethodError＃destroy

Question

尝试设置Logout操作时，我在Sessions_Controller中创建了Session＃destroy方法。以下是完整的控制器：

class SessionsController < ApplicationController
  before_action :set_session, only: [:show, :edit, :update, :destroy]
  helper_method :current_user

  def new
  end

  def create
    @user = User.find_by_email(params[:session][:email])
    if @user && @user.authenticate(params[:session][:password])
      session[:user_id] = @user.id
      redirect_to '/tasks'
    else
      redirect_to 'login'
    end 
  end

  def destroy
    log_out
    redirect_to '/login'
  end

log_out在sessions_helper.rb中显示如下：

    def log_out
        session.delete(:user_id)
        @current_user = nil
    end

尝试使用我已设置的注销按钮或导航到localhost：3000 / logout时收到以下错误。

错误消息

我甚至无法找到代码来更仔细地查看它。有任何想法吗？

Answer 1

class SessionsController < ApplicationController
  # move this to ApplicationController instead of duplicating it all over your app
  helper_method :current_user 

  def new
  end

  def create
    @user = User.find_by_email(params[:session][:email])
    if @user && @user.authenticate(params[:session][:password])
      session[:user_id] = @user.id
      redirect_to '/tasks'
    else
      redirect_to '/login'
    end 
  end

  def destroy
    log_out
    redirect_to '/login'
  end
end

def log_out
  reset_session
  @current_user = nil
end