class ChangeThumbnailSizesForDragonfly < ActiveRecord::Migration def self.up RefinerySetting.set(:image_thumbnails, { :dialog_thumb => '106x106#c', :grid => '135x135#c', :preview => '96x96#c' }) end def self.down RefinerySetting.set(:image_thumbnails, { :dialog_thumb => 'c106x106', :grid => 'c135x135', :preview => 'c96x96' }) end end