DRF throws 500 if we raise Django ValidationError from validate_unique

[JD Solanki]

Hi, I have been wondering doesn't DRF convert Django's ValidationError raised from `validate_unique` or from `clean` method of the model?

I have ModelViewSet:

```python

class UpvoteViewSet(ModelViewSet):

    queryset = Upvote.objects.all()

    serializer_class = UpvoteSerializer

```

and I have added `validate_unique` method to model:

```python

    def validate_unique(self, *args, **kwargs):

        super().validate_unique(*args, **kwargs)

        upvote_model = self.__class__

        if upvote_model.objects.filter(upvoted_item=self.upvoted_item, upvoted_user=self.upvoted_user).exists():

            raise ValidationError(['This user already upvoted this item.', ])

```

The problem is `ValidationError` is from Django and if I use DRF's ValidationError then I get an error in Django Admin. So, what's happening. Does DRF handle this??

[wenlu han]

HEHE

JD Solanki <jdsola...@gmail.com> 于2020年7月21日周二 下午7:11写道：

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[Ryoma Han]

As you said,  you get an error in Django Admin, not DRF Admin!