def to_representation(self, instance):
if 'request' in self._context:
params = self._context['request'].query_params
if 'lon' in params and 'lat' in params:
lon = float(params['lon'])
lat = float(params['lat'])
p = GEOSGeometry('POINT(%f %f)' % (lon, lat), srid=4326)
instance.origin = p
if 'tags' in params and params['tags']:
from tag.models import Tag
tags = Tag.tags_from_param(params['tags'])
instance.search_tags = tags
return super(UserPlaceSerializer, self).to_representation(instance)
