使用omniauth（微博）登录时更新用户数据

Question

我不知道如何管理更新通过Omniauth注册的用户数据 - 例如，如果我在twitter上更新我的profil图片，则会显示profil图片我的网络应用程序未更新，并会显示损坏。

我的用户模型设置如下：

应用程序/模型/ user.rb

class User < ActiveRecord::Base 
    has_merit 

    # Include default devise modules. Others available are: 
    # :confirmable, :lockable, :timeoutable and :omniauthable 
extend FriendlyId 
    friendly_id :name, use: :slugged 
    def should_generate_new_friendly_id? 
    new_record? 
    end 


    devise :database_authenticatable, :registerable,:omniauthable, 
     :recoverable, :rememberable, :trackable, :validatable 

    validates :email, presence: true, 
        uniqueness: true 

    has_many :pins, :dependent => :destroy 
    has_many :comments, :dependent => :destroy 
    has_many :votes, dependent: :destroy 
    has_many :upvoted_pins, through: :votes, source: :pin 

    has_many :rewards, dependent: :destroy 
    has_many :rewarded_pins, through: :rewards, source: :pin 

    has_many :badges 






    def self.from_omniauth(auth) 
    where(auth.slice(:provider, :uid)).first_or_create do |user| 
    user.provider = auth.provider 
    user.uid = auth.uid 
    user.name = auth.info.nickname 
    user.image = auth["info"]["image"] 
    user.description = auth.info.description 
    end 
end 

def self.new_with_session(params, session) 
    if session["devise.user_attributes"] 
    new(session["devise.user_attributes"]) do |user| 
     user.attributes = params 
     user.valid? 
    end 
    else 
    super 
    end 
end 

def password_required? 
    super && provider.blank? 
end 

def update_with_password(params, *options) 
    if encrypted_password.blank? 
    update_attributes(params, *options) 
    else 
    super 
    end 
end 

end 

Answer 1

在你的控制器，你可以随时检查，看看是否需要更新的数据。例如：

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController 
    def twitter_oauth2 
    @user = User.from_omniauth(request.env["omniauth.auth"]) 

    if @user.image != request.env["omniauth.auth"]["info"]["image"] 
     @user.image = request.env["omniauth.auth"]["info"]["image"] 
     @user.save 
    ... 
    end 
end