def near(self, request, pk=None):
signal = self.get_object()
signals_for_geography_qs = Signal.objects.annotate(
distance_from_point=Distance(
'location__geometrie', signal.location.geometrie), ).filter(
(Q(parent__isnull=True) & Q(children__isnull=True))
| Q(parent__isnull=False),
distance_from_point__lte=app_settings.
SIGNAL_CONTEXT_GEOGRAPHY_RADIUS,
category_assignment__category_id=signal.
category_assignment.category.pk,
created_at__gte=(timezone.now() - timezone.timedelta(
weeks=app_settings.
SIGNAL_CONTEXT_GEOGRAPHY_CREATED_DELTA_WEEKS)),
).exclude(pk=signal.pk)
paginator = LinkHeaderPagination(page_query_param='geopage',
page_size=4000)
page = paginator.paginate_queryset(signals_for_geography_qs,
self.request,
view=self)
if page is not None:
serializer = SignalContextGeoSerializer(
page, many=True, context=self.get_serializer_context())
return paginator.get_paginated_response(serializer.data)
serializer = SignalContextGeoSerializer(
page, many=True, context=self.get_serializer_context())
return Response(serializer.data)
def geography(self, request):
filtered_qs = self.filter_queryset(self.get_queryset())
paginator = LinkHeaderPagination(page_query_param='geopage')
page = paginator.paginate_queryset(filtered_qs, self.request, view=self)
if page is not None:
serializer = AreaGeoSerializer(page, many=True)
return paginator.get_paginated_response(serializer.data)
serializer = AreaGeoSerializer(filtered_qs, many=True)
return Response(serializer.data)
def geography(self, request):
# Makes use of the optimised queryset
filtered_qs = self.filter_queryset(
self.geography_queryset.filter_for_user(
user=self.request.user
)
).order_by(
'id' # Oldest Signals first
)
paginator = LinkHeaderPagination(page_query_param='geopage', page_size=4000) # noqa page_size = 2.5 times the average signals made in a day, at this moment the highest average is 1600
page = paginator.paginate_queryset(filtered_qs, self.request, view=self)
if page is not None:
serializer = SignalGeoSerializer(page, many=True)
return paginator.get_paginated_response(serializer.data)
serializer = SignalGeoSerializer(filtered_qs, many=True)
return Response(serializer.data)