tracks/app/models/tagging.rb
Reinier Balt f79c28231b remove unused and unneccesary user_id from taggings table.
this way we can stay closer to the defaults of has_many_polymorphs thus making upgrading easier
2009-01-08 10:18:03 +01:00

16 lines
687 B
Ruby

# The Tagging join model. This model is automatically generated and added to your app if you run the tagging generator included with has_many_polymorphs.
class Tagging < ActiveRecord::Base
belongs_to :tag
belongs_to :taggable, :polymorphic => true
# If you also need to use <tt>acts_as_list</tt>, you will have to manage the tagging positions manually by creating decorated join records when you associate Tags with taggables.
# acts_as_list :scope => :taggable
# This callback makes sure that an orphaned <tt>Tag</tt> is deleted if it no longer tags anything.
def after_destroy
tag.destroy_without_callbacks if tag and tag.taggings.count == 0
end
end