'ListSerializer' object is not callable Request Method

Question

Unfortunately I'm facing the same problem as mentioned in this post. But it didn't solve the problem in my case.

My model:

class AppointmentCategory(models.Model):
    name = models.CharField(max_length=100, default='General')

My Serializer:

class AppointmentCategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = AppointmentCategory
        fields = ('id', 'name',)

My View:

class AppointmentCategoryViewSet(viewsets.ModelViewSet):
    queryset = AppointmentCategory.objects.all()
    serializer_class = AppointmentCategorySerializer(many=True)

I'm passing the post data in this format:

 [
  {
    "name": "Emergency"
  },
  {
    "name": "General"   
  }
 ]

It does work when I send only one element. However the above mentioned list fails to create two objects in the database. The error says:

'ListSerializer' object is not callable

I'm not sure how to solve this. Any ideas?

The very best way to solve this is to override the `def create(self, request):` method of your `AppointmentCategoryViewSet` if you want to pass a list of dictionaries. — Shift 'n Tab, May 30 '17 at 04:46

score 1 · Answer 1 · answered May 29 '17 at 22:10

1

You shouldn't be instantiating the serialiser in the viewset definition. Just do:

serializer_class = AppointmentCategorySerializer

Note, this is exactly the same solution as recommended in the question you linked to.

answered May 29 '17 at 22:10

Daniel Roseman

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That gives me the following error: {"non_field_errors":["Invalid data. Expected a dictionary, but got list."]} – QuestionEverything May 29 '17 at 22:15
@HasanIqbalAnik of course it wont work since the serialzier is expecting a post data of a dictionary form and you are trying to pass a list of dictionary which is obviously wont work – Shift 'n Tab May 30 '17 at 04:45

'ListSerializer' object is not callable Request Method

1 Answers1