using django rest framework to return info by name

Question

I am using Django rest framework and I create this class to return all the name of project

class cpuProjectsViewSet(viewsets.ViewSet):
  serializer_class = seri         


        

Answer 1

One does not use raw queries unless absolutely needed and even then, there isn't a need to manually connect to the database because you have easy access to a connection object. Overall, your retrieve method can be improved as follows:

def retrieve(self, request, pk=None):
    queryset = CpuProject.objects.all()
    cpu = get_object_or_404(queryset, pk=pk)
    serializer = serializers.cpuProjectsSerializer(cpu)
    return Response(serializer.data)

Much shorter and easier to read. But Even this is not really needed If you use a ModelViewset! Then the default retrieve method will take care of this for you. So your viewset reduces to

class cpuProjectsViewset(viewsets.ModelViewSet):
    serializer_class =serializer = serializers.cpuProjectsSerializer
    queryset = CpuProject.objects.all()

You don't need a retrieve method here!!

But I see that you are trying to retrieve a particular CpuProject item by it's name (rather than using it's PK). For that you need to add a route

from rest_framework.decorators import detail_route, list_route
@detail_route(url_path='(?P[\w-]+)')
def get_by_name(self, request, pk=None,slug=None):

    queryset = CpuProject.objects.all()
    cpu = get_object_or_404(queryset, name=slug)
    serializer = serializers.cpuProjectsSerializer(cpu)
    return Response(serializer.data)