I want to be able to UPDATE a user record by POST. However, the id is always NULL. Even if I pass the id it seems to be ignored

View Code:

JSON POSTED:

{"id": 1, "name": "Craig Champion", "profession": "Developer", "email": "[email protected]"
}@api_view(['POST'])
def get_purchase(request):"""Gets purchase records for a userPurchase collection is returned"""user = User();serializer = UserSerializer(user, data=request.DATA)if serializer.is_valid():#The object ALWAYS has ID = nothing at this pointserializer.save()return Response(serializer.data, status=status.HTTP_200_OK)else:return Response(serializer.errors,   status=status.HTTP_400_BAD_REQUEST)

ModelSerializer

class UserSerializer(serializers.ModelSerializer):class Meta:model = Userfields = ('id', 'name', 'profession', 'email', 'password', )write_only_fields = ('password' , )

Model

class User(models.Model):name = models.CharField(max_length=30, null=True, blank=True)profession = models.CharField(max_length=100, null=True, blank=True)email = models.EmailField()password = models.CharField(max_length=20, null=True, blank=True)def __unicode__(self):return self.name

How can I force the savechanges to update and see the ID?

You need to use partial=True to update a row with partial data:

serializer = UserSerializer(user, data=request.DATA, partial=True)

From docs:

By default, serializers must be passed values for all required fieldsor they will throw validation errors. You can use the partial argumentin order to allow partial updates.