Mapping a 1 - many relation in a Django Rest Framework View

Question

In my DRF i want to map a customers/sercvices relation in the view. So one Customer can have 0 - many services inside of it

My serializer class appears to be fine as inspired by How to join two models in django-rest-framework


class CustomerSerializer(serializers.ModelSerializer):

    class Meta:

        model = Customer 
        fields = ['name' , 'phone' ,'email1' ... , 'service_id'] 


class ServiceSerializer(serializers.ModelSerializer):
    class Meta:
        model = Service 
        fields = ['service_name', 'product_name', ...]


class Customer_ServiceSerializer(serializers.ModelSerializer):

    service = ServiceSerializer(many=True, read_only=True)
    class Meta:
        model = Customer
        fields = ['name' , 'phone1' , 'email1' ... 'service']

My Customer_ServiceSerializer class seems to be nested correctly

Im stuck on how i would show these combined models in the view as i have tried multiple things and come up stuck


class Customer_serviceListAPIView(generics.ListAPIView):
...

def get(self, request, *args, **kwargs):

Above is how i started my views but i am stuck on how to solve this problem

tried for example this Serialize multiple models in a single view / https://simpleisbetterthancomplex.com/tips/2016/06/20/django-tip-5-how-to-merge-querysets.html

but i get Customer objects arent iterable so how would i go about this

Thanks in advance

Edit


class Customer_serviceListAPIView(generics.ListAPIView):
    permission_classes = (IsAuthenticated,)
    queryset = Customer.objects.all()
    serializer_class = Customer_ServiceSerializer
    lookup_field= "name"

Need to do something in the views no? as currently as it is it will just display the customers with the service_id not the service details So i need to do something extra to make it work like that

Why do you think you need to do anything in the view? The serializer should just handle it. — Daniel Roseman, Jul 15 '19 at 14:25
But you've done the "something extra", which is to define Customer_ServiceSerializer with `service = ServiceSerializer`. — Daniel Roseman, Jul 15 '19 at 15:29
Wouldnt i need that step to join the serializer classes but i cant map that structure in the views — stackoverflow1234, Jul 15 '19 at 15:43
I do not understand what you are saying. What step? You are *already* joining the serializer classes. — Daniel Roseman, Jul 15 '19 at 15:45
In the views it only displays the customer data only not the service data aswell — stackoverflow1234, Jul 15 '19 at 15:47
What view? The Customer_serviceListAPIView is serializing to JSON based on the Customer_ServiceSerializer, which includes `service` as a sub-serializer. Are you sure you are actually going to a URL which points at Customer_serviceListAPIView? — Daniel Roseman, Jul 15 '19 at 15:53
yes i am doing that and navigating to that url returns customer with the respective services — stackoverflow1234, Jul 15 '19 at 15:56

Mapping a 1 - many relation in a Django Rest Framework View

0 Answers0