Generate an activity feed from several ActiveRecord models, without the need for extra activity tables!
I always find myself creating "activity" tables to log recently created objects (from multiple tables), so I can display them in a feed somewhere. This gem removes the need for the extra table/hooks, so you can build rails apps even faster!
Ruby and ActiveRecord
Requires Ruby version >= 1.9.2 and ActiveRecord version >= 3.0
Feedable should be installed as a gem in your app.
Include the gem in your Gemfile:
Or, if you like to live on the bleeding-edge:
gem "feedable", :git => "https://github.com/cavis/feedable"
In your models, indicate a datetime column to sort by:
class Alligator < ActiveRecord::Base feedable :created_at end class Grizzly < ActiveRecord::Base feedable :last_fed_at end
In your controller, or wherever you want to sort these records:
def activity @recent_activity = feedable Alligator, Grizzly, :limit => 10 end
This will return an array of
ActiveRecords, ordered by the specified datetime columns. The most recent activity will
be first, with a limit of 10. Keep reading... the advanced options will explain more about this.
Ah, you made it. Welcome!
feedable, the first thing to pass is 1-or-more
ActiveRecord queries. Just make sure you don't pass in something like
Alligator.all, as this executes sql right away, and doesn't give
feedable a chance to interject ordering.
However, you can pass in some fancy shmancy
ActiveRecord conditions, includes, selects, and joins.
@recent = feedable Alligator.where('name = ?', 'charles').includes(:garden), Grizzly.select('name', 'height'), Walleye.joins(:guns).where('guns.type = "smart"'), :limit => 10
Note that if you don't pass a limit, you get the default limit of 100 things returned. Additionally, you can specify an offset to
@recent = feedable Alligator, Grizzly, :limit => 10, :offset => 20
Finally, even though you usually want activity in a descending datetime order, you can also flip that around:
@recent = feedable Alligator, Grizzly, :limit => 10, :order => 'desc' @oldest = feedable Alligator, Grizzly, :limit => 10, :order => 'asc'
Issues and Contributing
Please, let me know about any bugs/feature-requests via the issues tracker. And if you'd like to contribute, send me a note! Thanks.
Feedable is free software, and may be redistributed under the MIT-LICENSE.
Thanks for listening!