Question

我正在使用rails 3并使用koala gem来获取与facebook graph api的连接。我正在使用omniauth来验证用户。

因此，当新用户登录到站点时，session_controller将处理新用户：

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

create方法调用User.rb模型中的“from_omniauth”类metod，以创建新用户：

class User < ActiveRecord::Base
 has_many :friends

    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.first_name = auth["info"]["first_name"]
     user.last_name = auth["info"]["last_name"]
     user.image = auth["info"]["image"]
     user.email = auth["info"]["email"]
     user.gender = auth["extra"]["raw_info"]["gender"]
     user.location = auth["extra"]["raw_info"]["location"]["name"]          
     user.token = auth["credentials"]["token"]
    end
     user.save!
    end

我想保存用户的facebook朋友并将其存储在一个名为friends的单独的表格中，所以我做了这个朋友模型：

class Friend < ActiveRecord::Base
  attr_accessible :name
  belongs_to :user
  validates :user_id, presence: true

  def facebook
    @Facebook ||= Koala::Facebook::API.new(token)
  end

  def add_friends
    facebook { |fb| fb.get_connection("me", "friends") }
  end
end

但我对如何存储用户朋友感到迷茫，我想知道：

如何创建用户并将其存储为朋友
我应该在哪里调用add_friends方法？
fb.get_connection（“我”，“朋友”）返回一个哈希数组，如> [{"name"=>"Johan Gyllenspetz", "id"=>"3624556"}, {"name"=>"Gustaf Josefsson",。我想存储名称和uid。

Answer 1

我就是这样做的：

class User < ActiveRecord::Base
  has_many :friends

  def self.from_omniauth(auth)
    user = 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.first_name = auth["info"]["first_name"]
      user.last_name = auth["info"]["last_name"]
      user.image = auth["info"]["image"]
      user.email = auth["info"]["email"]
      user.gender = auth["extra"]["raw_info"]["gender"]
      user.location = auth["extra"]["raw_info"]["location"]["name"]          
      user.token = auth["credentials"]["token"]
    end
    user.add_friends
    user.save
    user
  end

  def add_friends
    @facebook.get_connection("me", "friends").each do |hash|
      self.friends.where(:name => hash['name'], :uid => hash['id']).first_or_create
    end
  end

  private

  def facebook
    @facebook ||= Koala::Facebook::API.new(token)
  end

end

保存Facebook好友？

1 个答案: