Make migration reversible (AgileVentures#741)

Xiaohong-Deng · May 15, 2018 · d34be4a · d34be4a
1 parent 2acc0b9
commit d34be4a
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/db/migrate/20171228144437_update_user_id_for_click_throughs.rb b/db/migrate/20171228144437_update_user_id_for_click_throughs.rb
@@ -1,5 +1,9 @@
 class UpdateUserIdForClickThroughs < ActiveRecord::Migration[4.2]
-  def change
+  def up
     change_column :click_throughs, :user_id, 'integer USING CAST(user_id AS integer)'
   end
+
+  def down
+    change_column :click_throughs, :user_id
+  end
 end