belongs_to :author, :class_name => "User"
validates :id, :uniqueness => true, :presence => { :on => :update },
- :numericality => { :on => :update, :integer_only => true }
+ :numericality => { :on => :update, :only_integer => true }
validates :changeset, :presence => true, :associated => true
validates :author, :presence => true, :associated => true
validates :visible, :inclusion => [true, false]