I have a APIView class for showing all the rents and posting and delete etc. Now i want search feature so i tried to use DjangoFilterBackend but it is not working. I see in documentation, it has been used with ListAPIView but how can i use it in APIView.
class Rent(APIView):
"""
List all the rents if token is not provided else a token specific rent
"""
serializer_class = RentSerializer
filter_backends = (DjangoFilterBackend,)
filter_fields = ('city', 'place', 'property_category',)
search_fields = ('=city', '=place')
def get(self, request, token=None, format=None):
reply={}
try:
rents = Rental.objects.all()
if token:
rent = Rental.objects.get(token=token)
reply['data'] = self.serializer_class(rent).data
else:
reply['data'] = self.serializer_class(rents, many=True).data
except Rental.DoesNotExist:
return error.RequestedResourceNotFound().as_response()
except:
return error.UnknownError().as_response()
else:
return Response(reply, status.HTTP_200_OK)
when i search the rent with the following parameters in the url, i get all the rents, instead i should get only those rents that lies in city Kathmandu and place koteshwor
http://localhost:8000/api/v1/rents?city=Kathmandu&place=Koteshwor
The simplest way to filter the queryset of any view that subclasses GenericAPIView is to override the . get_queryset() method. Overriding this method allows you to customize the queryset returned by the view in a number of different ways.
The filter() method is used to filter you search, and allows you to return only the rows that matches the search term.
query_params is a more correctly named synonym for request. GET . For clarity inside your code, we recommend using request. query_params instead of the Django's standard request.
To use the functionality of DjangoFilterBackend, you could incorporate the filter_queryset
method from GenericViewSet
, which is the DRF class that inherits from APIView
and leads to all specific 'generic' view classes in DRF. It looks like this:
def filter_queryset(self, queryset):
"""
Given a queryset, filter it with whichever filter backend is in use.
You are unlikely to want to override this method, although you may need
to call it either from a list view, or from a custom `get_object`
method if you want to apply the configured filtering backend to the
default queryset.
"""
for backend in list(self.filter_backends):
queryset = backend().filter_queryset(self.request, queryset, self)
return queryset
https://github.com/encode/django-rest-framework/blob/master/rest_framework/generics.py
Here If you are using APIView
, There is nothing to do with filters.So you have to do like
get_data = request.query_params #or request.GET check both
Then
Rental.objects.filter(city=get_data['city'], place=get_data['place'])
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