Treat timestamp columns as state fields in a model.
Call timestamp_state_fields on timestamp columns that represents state of your model, e.g.
Class Order < ActiveRecord::Base
include TimestampStateFields
timestamp_state_fields :processed_at, :canceled_at
end
It will enable the following interactions on user model.
order = Order.new
# checks for presence of processed_at timestamp
order.processed?
# checks if canceled_at is nil
order.not_canceled?
# sets processed_at timestamp
order.mark_as_processed unless order.processed?
# unsets processed_at timestamp
order.mark_as_not_processed
# You can combine multiple scopes
Order.processed.not_canceled.count
Add this line to your application's Gemfile:
gem 'timestamps_state_fields'
And then execute:
$ bundle install
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request