class RemoveEnumerationsOpt < ActiveRecord::Migration[4.2] def self.up remove_column :enumerations, :opt end def self.down add_column :enumerations, :opt, :string, :limit => 4, :default => '', :null => false Enumeration.where("type = 'IssuePriority'").update_all("opt = 'IPRI'") Enumeration.where("type = 'DocumentCategory'").update_all("opt = 'DCAT'") Enumeration.where("type = 'TimeEntryActivity'").update_all("opt = 'ACTI'") end end