class TopicRevision < ActiveRecord::Base belongs_to :topic belongs_to :user serialize :modifications, Hash end # == Schema Information # # Table name: topic_revisions # # id :integer not null, primary key # user_id :integer # topic_id :integer # modifications :text # number :integer # created_at :datetime # updated_at :datetime # # Indexes # # index_topic_revisions_on_topic_id (topic_id) # index_topic_revisions_on_topic_id_and_number (topic_id,number) #