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A Ruby gem to avoid reinventing the wheel every time you want to use ActiveRecord in a WeaselDiesel app backed by Sinatra (wd_sinatra).

Use this gem to easily get connected to one or multiple databases and to enjoy some of the common ActiveRecord Rake tasks available in Rails.


Add this line to your application's Gemfile:

gem 'wd_sinatra_active_record'

And then execute:

$ bundle

Or install it yourself as:

$ gem install wd_sinatra_active_record

Don't forget to set a gem dependency for the DB adapter you need. For instance:



Add an ActiveRecord database.yml file in your config folder and then require this gem in your app.rb file and connect to the DB:

require 'wd_sinatra_active_record'
WdSinatraActiveRecord::DBConnector.connect_to_db unless ENV['DONT_CONNECT']

The DB settings can be accessed via:


If you need a secondary DB connection (to another DB for instance), add a new entry to your database.yml config file:

  adapter: mysql2
  encoding: utf8
  reconnect: true
  database: app_development
  pool: 5
  username: root
  socket: /tmp/mysql.sock

    adapter: mysql2
    encoding: utf8
    reconnect: true
    database: secondary_development
    pool: 5
    username: root
    socket: /tmp/mysql.sock

Then in your app.rb after requiring this gem:

class SecondaryConnection < ActiveRecord::Base
  self.abstract_class = true
secondary_config = DBConnector::DB_CONFIG[RACK_ENV]['secondary']
SecondaryConnection.establish_connection(secondary_config) unless ENV['DONT_CONNECT']

Then whichever ActiveRecord that needs to connect to the secondary DB can inherit from SecondaryConnection instead of ActiveRecord::Base.

Rake tasks

A Rake task file is also provided so you can load ActiveRecord specific tasks. To do that, create a new rake file in your lib/tasks folder, load WDSinatra and the rake task file:

$ echo "require 'wd_sinatra_active_record'
load WdSinatraActiveRecord.task_path" > lib/tasks/db.rake

The tasks are very basic and mainly copied from Rails, feel free to send patches and improvements.

(Note: WDSinatra version 1.0.4 or newer required)


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