Annotate models.

app/models/group_request.rb

@@ -2,3 +2,20 @@ class GroupRequest < ActiveRecord::Base
   belongs_to :group
   belongs_to :user
 end
+
+# == Schema Information
+#
+# Table name: group_requests
+#
+#  id         :bigint(8)        not null, primary key
+#  group_id   :integer
+#  user_id    :integer
+#  reason     :text
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+# Indexes
+#
+#  index_group_requests_on_group_id  (group_id)
+#  index_group_requests_on_user_id   (user_id)
+#