創建設計用戶在兩個數據庫同時記錄相同的兩個數據庫

我正在使用rails 4，並希望集成一些外部API，爲此我有一個情況，我必須創建用戶在兩個數據庫同時具有相同的記錄。創建設計用戶在兩個數據庫同時記錄相同的兩個數據庫

我使用設計這個Rails應用程序，到目前爲止，我還做了以下保存用戶記錄在另一個數據庫：

config/database.yml

development: 
    adapter: mysql2 
    encoding: utf8 
    database: test_openmeetings_development 
    pool: 5 
    username: root 
    password: root 
    socket: /var/run/mysqld/mysqld.sock 

openmeetings_dev: 
    adapter: mysql2 
    encoding: utf8 
    database: openmeetings 
    pool: 5 
    username: root 
    password: root 
    socket: /var/run/mysqld/mysqld.sock

models/User.rb

class User < ActiveRecord::Base 
    # Include default devise modules. Others available are: 
    # :confirmable, :lockable, :timeoutable and :omniauthable 
    devise :database_authenticatable, :registerable, 
    :recoverable, :rememberable, :trackable, :validatable, :confirmable 

    # Setup accessible (or protected) attributes for your model 
    attr_accessible :new_password, :firstname, :lastname, :username, :email, :password, :password_confirmation, :remember_me, :confirmation_token 
    attr_accessor :new_password 

    # creating user record to another database just after Devise user is created 
    after_create :save_to_openmeetings 


    def save_to_openmeetings  
    user = last_user 

    ActiveRecord::Base.establish_connection("openmeetings_dev").connection 
    sql = "INSERT INTO users (firstname, lastname, login) VALUES ('#{user.firstname}', '#{user.lastname}', '#{user.email}')" 
    connection.execute(sql) 

    # reconnect database to original state 
    ActiveRecord::Base.establish_connection("#{Rails.env}").connection 
    end 

    def last_user 
    User.last 
    end 
end

PROBLE M 1.雖然它正在兩個數據庫（從控制檯日誌）中正確創建用戶，但我面臨的問題是，Data存在另一個數據庫（openmeetings）中，但該數據不存在在我的原始數據庫（test_openmeetings_development）中

連接還沒有重新回到原來的數據庫（test_openmeetings_development）

可能是什麼我做的是不是一個好主意，所以，請分享我能解決我的問題的邏輯。（？爲什麼它不工作），或請讓我知道什麼，我在此代碼是缺少

感謝

來源

2014-06-06 przbadu

這似乎是對我來說完全是錯誤的做法。您應該考慮1.主從複製或2.定期快照從一個移動到另一個。你需要兩個數據庫的原因是什麼？ –

謝謝黑暗獵鷹給你的建議。還有什麼建議？ – przbadu

@przbadu你是如何解決這個問題的？我需要完成類似的場景 – MicFin

所有其他的配置是相同的，變化如下：

1）openmeeting數據庫中創建用戶在after_create回調

models/user.rb

class User < ActiveRecord::Base 
# Include default devise modules. Others available are: 
    # :confirmable, :lockable, :timeoutable and :omniauthable 
    devise :database_authenticatable, :registerable, 
    :recoverable, :rememberable, :trackable, :validatable, :confirmable 

    # Setup accessible (or protected) attributes for your model 
    attr_accessible :new_password, :firstname, :lastname, :username, :email, :password, :password_confirmation, :remember_me, :confirmation_token 
    attr_accessor :new_password 

    # creating user record to another database just after Devise user is created 
    after_create :save_to_openmeetings 

    def save_to_openmeetings 
    OpenMeeting.create_user(self) 
    end 
end

2）創建models/open_meeting.rb

class OpenMeeting < ActiveRecord::Base 

    # override establish_connection method 
    def self.establish_connection 
    super(:openmeetings_dev) 
    end 

    # create connection to your new database for me ```:openmeetings_dev``` 
    establish_connection 


    def self.create_user(user) 
    firstname = "#{ActiveRecord::Base::sanitize(user.firstname)}" # escape sql injection 
    lastname = "#{ActiveRecord::Base::sanitize(user.lastname)}" # escape sql injection 
    login = "#{ActiveRecord::Base::sanitize(user.email)}" # escape sql injection 
    password = "#{ActiveRecord::Base::sanitize(user.new_password)}" # escape sql injection 

    sql = ("INSERT INTO users (firstname, lastname, login, password) VALUES ('#{firstname}', '#{lastname}', '#{login}', '#{password}')") 
    connection.execute(sql) # execute create sql statement 
    end 

end

該解決方案爲我工作，但我認爲，可能有比這更好的解決辦法，那麼，請後，如果有任何新的辦法解決這個問題

感謝

來源

2014-06-30 13:19:42 przbadu

創建設計用戶在兩個數據庫同時記錄相同的兩個數據庫

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