|  | class AddDescriptionToSessionActivations < ActiveRecord::Migration[5.1]
 | 
						
						
						
							|  |   def change
 | 
						
						
						
							|  |     add_column :session_activations, :user_agent, :string, null: false, default: ''
 | 
						
						
						
							|  |     add_column :session_activations, :ip, :inet
 | 
						
						
						
							|  |     add_foreign_key :session_activations, :users, on_delete: :cascade
 | 
						
						
						
							|  |   end
 | 
						
						
						
							|  | end
 |