belongs_to :changeset
validates :changeset, :presence => true, :associated => true
- validates :k, :v, :allow_blank => true, :length => { :maximum => 255 }, :invalid_chars => true
+ validates :k, :v, :allow_blank => true, :length => { :maximum => 255 }, :characters => true
validates :k, :uniqueness => { :scope => :changeset_id }
end