class MapSerializer < ActiveModel::Serializer embed :ids, include: true attributes :id, :name, :desc, :permission #has_one :author, serializer: UserSerializer, root: 'users' #has_one :group, serializer: GroupSerializer, root: 'groups' #has_one :active_proposal, serializer: MotionSerializer, root: 'proposals' #def author # object.author #end end