models.py

from __future__ import unicode_literals, print_function
from django.db import models


class UniqueTogetherModel(models.Model):
    foo = models.IntegerField()
    bar = models.IntegerField()

    class Meta(object):
        unique_together = ('foo', 'bar')

result.sh

❯❯❯ ipython test.py
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
/Volumes/Data/Users/miki725/Development/libs/django-rest-framework-bulk/test.py in <module>()
     35
     36 if __name__ == '__main__':
---> 37     example()

/Volumes/Data/Users/miki725/Development/libs/django-rest-framework-bulk/test.py in example()
     31     )
     32
---> 33     s.is_valid(raise_exception=True)
     34
     35

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/serializers.py in is_valid(self, raise_exception)
    184         if not hasattr(self, '_validated_data'):
    185             try:
--> 186                 self._validated_data = self.run_validation(self.initial_data)
    187             except ValidationError as exc:
    188                 self._validated_data = {}

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/serializers.py in run_validation(self, data)
    513             return data
    514
--> 515         value = self.to_internal_value(data)
    516         try:
    517             self.run_validators(value)

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/serializers.py in to_internal_value(self, data)
    543         for item in data:
    544             try:
--> 545                 validated = self.child.run_validation(item)
    546             except ValidationError as exc:
    547                 errors.append(exc.detail)

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/serializers.py in run_validation(self, data)
    364         value = self.to_internal_value(data)
    365         try:
--> 366             self.run_validators(value)
    367             value = self.validate(value)
    368             assert value is not None, '.validate() should return the validated data'

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/fields.py in run_validators(self, value)
    380
    381             try:
--> 382                 validator(value)
    383             except ValidationError as exc:
    384                 # If the validation error contains a mapping of fields to

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/validators.py in __call__(self, attrs)
    137         self.enforce_required_fields(attrs)
    138         queryset = self.queryset
--> 139         queryset = self.filter_queryset(attrs, queryset)
    140         queryset = self.exclude_current_instance(attrs, queryset)
    141         if queryset.exists():

/Volumes/Data/Users/miki725/.virtualenvs/restbulk/lib/python3.4/site-packages/rest_framework/validators.py in filter_queryset(self, attrs, queryset)
    116             for field_name in self.fields:
    117                 if field_name not in attrs:
--> 118                     attrs[field_name] = getattr(self.instance, field_name)
    119
    120         # Determine the filter keyword arguments and filter the queryset.

AttributeError: 'QuerySet' object has no attribute 'bar'

test.py

# -*- coding: utf-8 -*-
from __future__ import print_function, unicode_literals

import django
django.setup()

from rest_framework.serializers import ModelSerializer
from rest_framework_bulk.tests.simple_app.models import UniqueTogetherModel


class ExampleSerializer(ModelSerializer):
    class Meta(object):
        model = UniqueTogetherModel


def example():
    UniqueTogetherModel.objects.all().delete()
    obj = UniqueTogetherModel.objects.create(foo=1, bar=2)

    s = ExampleSerializer(
        UniqueTogetherModel.objects.all(),
        data=[
            {
                'foo': 5,
                'id': obj.pk,
            }
        ],
        partial=True,
        many=True,
    )

    s.is_valid(raise_exception=True)


if __name__ == '__main__':
    example()