--- /dev/null
+class RmDefaultSizeOnComic < ActiveRecord::Migration
+ def up
+ remove_column :comics, :width
+ remove_column :comics, :height
+ end
+
+ def down
+ add_column :comics, :width, :integer , :null => false, :default => 0
+ add_column :comics, :height, :integer , :null => false, :default => 0
+ end
+end