How to write custom validation on django rest framework?-CodePudding

How to write custom validations on drf. I have validate function on serializer. Can someone help whats wrong with my code? my views:

class MyCustomView(ListCreateAPIView):
    def create(self, request, *args, **kwargs):
        serializer = MyCustomSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)

my serializer:

class MyCustomView(serializers.Serializer):
    name = serializers.CharField(required=True, max_length=64)
    address = serializers.CharField(required=True, max_length=64)

    def validate(self, attrs):
        if not attrs.get('name'):
            raise serializers.ValidationError('Name field is required.')

when i request with blank name and address it shows default drf error. How to override this function?

CodePudding user response：

remove required=True from both of your fields.

but it's better you don't bother your backend with empty data and have your frontend handle it.

CodePudding user response：

You forgot to return attrs after validation.

def validate(self, attrs):
    if not attrs.get('name'):
        raise serializers.ValidationError('Name field is required.')
    return attrs