## config/database.yml [plain_text]
development:
  adapter: sqlite3
  database: db/development.sqlite3
  timeout: 5000

...

# do this for each of your environments (if you want)
firebird_development:
  adapter: firebird
  database: firebird_development
  host: localhost
  username: rails
  password: rails

## app/models/firebird/base.rb
class Firebird::Base < ActiveRecord::Base
  set_table_name :firebird_bases
  establish_connection "firebird_#{RAILS_ENV}".intern

  def self.inherited(subclass)
    subclass.send :set_table_name, undecorated_table_name(subclass.name.split(/::/).last)
  end
end

## app/models/firebird/widget.rb
class Firebird::Widget < Firebird::Base
  # table name is set automatically to "widgets", or you can set
  # it explicitly with:
  # set_table_name 'firebird_widgets'
end