def filter(self, qs, value):
try:
longitude = float(value[0])
latitude = float(value[1])
ahjs_to_search=qs.values_list('AHJID', flat=True)
return ahj_gis_utils.filter_ahjs_by_location(longitude, latitude,
ahjs_to_search=ahjs_to_search)
except ValueError:
return qs
def filter(self, qs, value):
try:
longitude = float(value[0])
latitude = float(value[1])
return ahj_gis_utils.filter_ahjs_by_location(longitude,
latitude,
ahjs_to_search=qs)
except ValueError:
return qs
def filter(self, qs, value):
address = ''
for string in value:
address += string
geocode_result = gmaps.geocode(address)
if len(geocode_result) == 0:
return qs
ahj_qs = AHJ.objects.none()
for x in range(len(geocode_result)):
coordinates = geocode_result[x]['geometry']['location']
longitude = coordinates['lng']
latitude = coordinates['lat']
ahjs_to_search=qs.values_list('AHJID', flat=True)
ahj_qs |= ahj_gis_utils.filter_ahjs_by_location(longitude, latitude,
ahjs_to_search=ahjs_to_search)
return ahj_qs
def list(self, request, *args, **kwargs):
"""
ListModelMixin: https://www.django-rest-framework.org/api-guide/generic-views/#listmodelmixin
sends a response of a paginated list of AHJs with this JSON structure:
- count: number of AHJs across all pages
- next: the link to get the next page of AHJs (value null if no next page)
- prev: the link to get the previous page (value null if no prev page)
- results: list (or object containing the list) of serialized AHJ objects
Default implementation: https://github.com/encode/django-rest-framework/blob/8351747d98b97907e6bb096914bf287a22c5314b/rest_framework/mixins.py#L33
Filtering of AHJs by address happens here; other filtering is done in filters.py
This method was overridden to include latlng results of the address provided.
"""
queryset = self.filter_queryset(self.get_queryset())
location = get_location(request)
# filter by latlng if given
if location['Latitude']['Value'] is not None and location['Longitude'][
'Value'] is not None:
# mpoly of an AHJ refers to a Polygon object; mpoly of a Polygon refers to a MULTIPOLYGON
# mpoly__mpoly__intersects looks for what AHJ's Polygon's MULTIPOLYGONS contain this point
queryset = filter_ahjs_by_location(
location['Longitude']['Value'],
location['Latitude']['Value'],
ahjs_to_search=queryset.values_list('AHJID', flat=True))
# construct the paginated response
page = self.paginate_queryset(queryset)
if page is not None:
serializer = self.get_serializer(page, many=True)
# passing data object including latlng for results
return self.get_paginated_response({
'Location': location,
'ahjlist': serializer.data
})
serializer = self.get_serializer(queryset, many=True)
return Response(serializer.data)
