ruby - ActiveRecord in Rails 4 without environment specific databases -

i want know if there way of using activerecord without environment specific databases (development, test, production).

the reason using mongodb main database (mongoid), need access external oracle database , use active record.

the problem when enable active record in application.rb:

require 'active_record/railtie' 

it tries connect development database (which won't exist).

is there way around this? thanks

try requiring active record, this:

require "active_record" 

and load database.yml file manually this:

activerecord::base.configurations = yaml.load_file(file.expand_path('../database.yml', __file__)) 

then can remove development, test , production databases database.yml.