的SQLite3 :: BusyException錯誤

我收到此錯誤是越來越創建一個新的用戶帳戶時：的SQLite3 :: BusyException錯誤

ActiveRecord::StatementInvalid in SessionsController#create 

SQLite3::SQLException: cannot start a transaction within a transaction: begin transaction

我使用的考拉和omniauth寶石autenticate並獲取用戶的朋友。爲什麼不能啓動兩個事務，爲什麼它會回滾朋友遷移？

如何解決這個問題？

這是我SessionController：

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

這是我的用戶模型：

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

來源

2012-07-01 SHUMAcupcake

Sqlite3不能嵌套事務。 – ergosys

是的，我忘了提及.. – SHUMAcupcake

的事情是，當用戶打了創建方法，該方法from_omniauth（AUTH）正在檢查是否用戶存在，如果用戶dosent存在它開始創建用戶並從Facebook提供的auth哈希中獲取所有信息。但是，在保存用戶之前，它調用add_friends方法，但用戶仍然存在錯誤！

所以，你必須先保存用戶，然後調用add_friends方法

而且SQLITE3是不能嵌套事務的！

乾杯！

來源

2012-07-02 20:41:18 SHUMAcupcake

bundle exec rake db:reset

鍵入上述命令。

來源

2013-08-01 11:30:17

請提供一些解釋以及..將幫助... – NREZ

的SQLite3 :: BusyException錯誤

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