为什么ActiveModel :: ForbiddenAttributesError错误?

时间:2014-11-24 13:21:51

标签: ruby-on-rails sqlite omniauth omniauth-facebook

这是我的模特

class User < ActiveRecord::Base
  def self.from_omniauth(auth)
    where(auth.slice(:provider, :uid)).first_or_initialize.tap do |user|
      user.provider = auth.provider
      user.uid = auth.uid
      user.name = auth.info.name
      user.oauth_token = auth.credentials.token
      user.oauth_expires_at = Time.at(auth.credentials.expires_at)
      user.save!
    end
  end
end

这是我的控制器

class SessionsController < ApplicationController
  def create
    user = User.from_omniauth(env["omniauth.auth"])
    session[:user_id] = user.id
    redirect_to root_url
  end

 def destroy
   session[:user_id] = nil
   redirect_to root_url
 end
 end

如果有任何重复条目,我尝试查看数据库。但不是。如果你能提供帮助,请告诉我。

1 个答案:

答案 0 :(得分:0)

只需将where(条件)更改为:

where(provider: auth.provider, uid: auth.uid)

由于方法#permitted,第一种方法失败了? AR调用(如果已定义)来清理属性。

> h = auth.slice(:provider, :uid)
> h.class
=> OmniAuth::AuthHash < Hashie::Mash
> h.permmitted?
> false

但是,一个简单的Hash不会有#permitted?定义,因此它将继续:

> h = { provider: auth.provider, uid: auth.uid }
> h2.permitted?
NoMethodError: undefined method `permitted?' for {:provider=>"facebook", :uid=>"XXXX"}:Hash

参考:https://github.com/rails/rails/blob/master/activemodel/lib/active_model/forbidden_attributes_protection.rb#L19