Using Rails Migration on different database than standard “production” or “development”

Question

I have a rails project running that defines the standard production:, :development and :test DB-connections in config/database.yml

In addition I have a quiz_developm

Answer 1

You could use this version, which also supports rake db:rollback:

class ChangeQuiz < ActiveRecord::Migration
  def connection
    ActiveRecord::Base.establish_connection("quiz_#{Rails.env}").connection
  end

  def reset_connection
    ActiveRecord::Base.establish_connection(Rails.env)
  end

  def up
    # make changes

    reset_connection
  end

  def self.down
    # reverse changes

    reset_connection
  end
end