app/serializers/geo_data_serializer.rb
class GeoDataSerializer < ActiveModel::Serializer
include BaseSerializer
attributes :id, :name, :description, :location, :additional_info, :contacts,
:tags, :relations, :created_at, :updated_at
def relations
object.relations_values(splitted_type: true)
end
def location
# some times we don't get location from database
object.try(:location)
end
end