新しいユーザー アカウントを作成するときに、次のエラーが発生します。
ActiveRecord::StatementInvalid in SessionsController#create
SQLite3::SQLException: cannot start a transaction within a transaction: begin transaction
私はkoalaとomniauth gemを使用して、ユーザーの友達を認証して取得しています。2 つのトランザクションを開始できないのはなぜですか? フレンドの移行がロールバックされるのはなぜですか?
これをどのように修正しますか？
これは私のSessionControllerです：
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
これは私のユーザーモデルです:
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"] unless auth["info"].blank?
user.first_name = auth["info"]["first_name"] unless auth["info"].blank?
user.last_name = auth["info"]["last_name"] unless auth["info"].blank?
user.image = auth["info"]["image"] unless auth["info"].blank?
user.email = auth["info"]["email"] unless auth["info"].blank?
user.gender = auth["extra"]["raw_info"]["gender"] if (!auth["extra"].blank? && !auth["extra"]["raw_info"].blank?)
user.location = auth["extra"]["raw_info"]["location"]["name"] if (!auth["extra"].blank? && !auth["extra"]["raw_info"].blank? && !auth["extra"]["raw_info"]["location"].blank?)
user.token = auth["credentials"]["token"] unless auth["credentials"].blank?
# highschool data
user.highschool_name = auth["extra"]["raw_info"]["education"][0]["school"]["name"] if (!auth["extra"].blank? && !auth["extra"]["raw_info"]["education"][0]["school"].blank?)
user.highschool_year = auth["extra"]["raw_info"]["education"][0]["year"]["name"] if (!auth["extra"].blank? && !auth["extra"]["raw_info"]["education"][0]["year"].blank?)
# graduate school data
user.graduateschool_name = auth["extra"]["raw_info"]["education"][1]["school"]["name"] if (!auth["extra"].blank? && !auth["extra"]["raw_info"]["education"][1]["school"].blank?)
user.graduateschool_year = auth["extra"]["raw_info"]["education"][1]["year"]["name"] if (!auth["extra"].blank? && !auth["extra"]["raw_info"]["education"][1]["year"].blank?)
user.add_friends
user.save!
user
end
end
def add_friends
facebook.get_connections("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