Chris@1517: class RemoveCustomFieldsMinMaxLengthDefaultValues < ActiveRecord::Migration
Chris@1517:   def up
Chris@1517:     change_column :custom_fields, :min_length, :int, :default => nil, :null => true
Chris@1517:     change_column :custom_fields, :max_length, :int, :default => nil, :null => true
Chris@1517:     CustomField.where(:min_length => 0).update_all(:min_length => nil)
Chris@1517:     CustomField.where(:max_length => 0).update_all(:max_length => nil)
Chris@1517:   end
Chris@1517: 
Chris@1517:   def self.down
Chris@1517:     CustomField.where(:min_length => nil).update_all(:min_length => 0)
Chris@1517:     CustomField.where(:max_length => nil).update_all(:max_length => 0)
Chris@1517:     change_column :custom_fields, :min_length, :int, :default => 0, :null => false
Chris@1517:     change_column :custom_fields, :max_length, :int, :default => 0, :null => false
Chris@1517:   end
Chris@1517: end