How to take input of ManyToManyField of django? - django

Question

I have 2 models - Rooms and Modules. A module can contain many rooms and a room can be contained by many different modules. below are the models -
Rooms model -
class Rooms(models.Model):
room_id = models.AutoField(primary_key=True)
title = models.CharField(max_length=100)
desc = models.TextField()
level = models.CharField(max_length=100)
Module model -
class Module(models.Model):
module_id = models.AutoField(primary_key=True)
title = models.CharField(max_length=100)
desc = models.TextField()
is_deleted = models.BooleanField(default=False)
rooms = models.ManyToManyField(Rooms)
Module serializer -
class ModuleSerializer(serializers.ModelSerializer):
rooms = RoomSerializer(read_only=True, many=True)
class Meta:
model = Module
fields = "__all__"
Module view.py file -
class add_module(APIView):
def post(self, request, format=None):
module_serializer = ModuleSerializer(data=request.data)
if module_serializer.is_valid():
module_serializer.save()
return Response(module_serializer.data['module_id'], status = status.HTTP_201_CREATED)
return Response("response":module_serializer.errors, status = status.HTTP_400_BAD_REQUEST)
How do I take multiple rooms as input in views.py file while creating my module object. Also if i want to test my API in postman, then how can i take multiple inputs in postman.

Answer 1

You can use a similar construction:
class ModuleSerializer(serializers.ModelSerializer):
rooms = RoomSerializer(read_only=True, many=True)
class Meta:
model = Module
fields = "__all__"
def create(self, validated_data):
rooms = validated_data.pop('rooms')
...
for room in rooms:
...
return Response(...)