trendable

Add management for ordering your models by a trending popularity value.

gem 'trendable'

$ bundle install

# Add a migration:
$ rails g trendable:migration widget
$ bundle exec rake db:migrate

# Update your model to include the concern
# app/models/widget.rb

include Trendable::Concern

Widget.first.boost_trending_power

Widget.order_by_trending

20.times{ Widget.first.fade_trending_power }

Widget.order_by_trending

You can use the FadeOutTrendPowerWorker to lower the trending power over time.

For example, you might run it once an hour to fade out the power of the widget. In this way, the more recent the boost, the more trending power.

Note that the FadeOutTrendingPowerWorker does not hit any callbacks. It's an update_all on the table (for performance).