oauth_multi_db

OauthMultiDb

Switch rails app's db based on incoming oauth client

Installation

Add this line to your application's Gemfile:

gem 'oauth_multi_db'

And then execute:

$ bundle

Or install it yourself as:

$ gem install oauth_multi_db

Usage

For each request, if oauth client is found. it retrieves client.client_symbol value (from notes field), and uses it to switch to corresponding db.

To set client_symbol value on Oauth2 client, do it when your register it:

    Rack::OAuth2::Server.register(
      :display_name => 'oauth client 1',
      :notes => {'client_symbol' => 'client_1'}.to_json
    )

Setup

1. In rails app, create config/initializers/oauth_multi_db_config.rb, with code below:

require 'oauth_multi_db'

OauthMultiDb.configure do |config|
  config.domain_models = [User, Article]    # models that will have db changed.

  # your custom way to change db, or anything based on client_symbol
  config.db_switcher  = lambda {|client_symbol| 
                          new_db = "db_" + client_symbol.to_s 

                          OauthMultiDb.config.domain_models.each do |klass|
                            # change klass's db to new_db
                          end
                        }
end

1. in your controller, use the macro

class ApplicationController
  oauth_db_switch
  # or
  oauth_db_swith, :only => [:create, :update]   # or any before_filter options
end

This gem requires rack-oauth2-server gem. see https://github.com/assaf/rack-oauth2-server for more info.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request