Geojson example
from django.contrib.gis.serializers import geojson
def get_category_poi(request):
category = request.GET.get('category')
poi = Poi.objects.filter(category_id=category)
g = geojson.Serializer()
data = g.serialize(poi, geometry_field='geom', fields=('name', 'category'))
return HttpResponse(data, content_type='application/json')
