【发布时间】:2014-01-19 20:00:05
【问题描述】:
我是 RoR 的新手,我正在按照本教程从头开始制作用户身份验证系统:http://railscasts.com/episodes/250-authentication-from-scratch。我整个周末都被这个错误消息挂断了:
ArgumentError in SessionsController#create: wrong number of arguments (1 for 2).
这是我的会话控制器的代码:
class SessionsController < ApplicationController
def new
end
def create
user = User.authenticate(:email => params[:email], :password => params[:password])
if user
session[:user_id] = user.id
redirect_to root_url, :notice => "Logged in!"
else
flash.now.alert = "Invalid email or password"
render "new"
end
end
end
这是来自我的 user.rb 模型的代码(错误消息在第 10 行给出了提取的源代码 => def self.authenticate (email, password)
class User < ActiveRecord::Base
attr_accessor :password
validates_confirmation_of :password
validates_presence_of :email
validates_uniqueness_of :email
validates_presence_of :password, :on => :create # needed to move line up from below to. Cannot encrypt password without validating password
before_save :encrypt_password
def self.authenticate (email, password)
user = find_by_email(email)
if user && user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt)
user
else
nil
end
end
def encrypt_password
if password.present?
self.password_salt = BCrypt::Engine.generate_salt
self.password_hash = BCrypt::Engine.hash_secret(password, password_salt)
end
end
结束
【问题讨论】:
-
下次确保提供更多上下文。发生错误的行号会很有帮助。
标签: ruby-on-rails ruby ruby-on-rails-4 parameter-passing