validates :height, :presence => true, :numericality => true, :natural_number => true
# validates :settings, :presence => true
+ before_validation :valid_encode
+
+ def valid_encode
+ ['content', 'settings'].each do |a|
+ next if attributes[a] == nil
+ raise Pettanr::BadRequest unless attributes[a].valid_encoding?
+ end
+ end
+
def visible? roles
if MagicNumber['run_mode'] == 0
return false unless guest_role_check(roles)