/Python/Django/Django many to many post update method via rest

Django many to many post update method via rest

class GroupMembershipSerializer(ModelSerializer):
    class Meta:
        model = Membership
        fields = ('person',)

class GroupCreateSerializer(ModelSerializer):
     memberships = GroupMembershipSerializer(many=True, required=False)

    def create(self, validated_data):
        person_data = validated_data.pop('memberships')
        group = Group.objects.create(**validated_data)
        for person in person_data:
            d=dict(person)
            Membership.objects.create(group=group, person=d['person'])
        return group

    def update(self, instance, validated_data):
        person_data = validated_data.pop('memberships')
        for item in validated_data:
            if Group._meta.get_field(item):
                setattr(instance, item, validated_data[item])
        Membership.objects.filter(group=instance).delete()
        for person in person_data:
            d=dict(person)
            Membership.objects.create(group=instance, person=d['person'])
        instance.save()
        return instance

    class Meta:
        model = Group

class GroupCreateModelViewSet(ModelViewSet):
    serializer_class = GroupCreateSerializer
    queryset = Group.objects.all()

Source: stackoverflow.com

Similar codes

30 votes477 views3 answers
Django createsuperuser
Python Django
0 vote360 views1 answer
Adding extra fields to user model django
Python Django
-1 vote348 views1 answer
Import http response in django
Python Django
0 vote346 views1 answer
Django.db.utils.ProgrammingError: can't adapt type 'dict_keys'
Python Django
3 votes405 views3 answers
Django.db.utils.OperationalError: no such table:
Python Django
0 vote356 views1 answer
Access host database django docker
Python Django
0 vote350 views1 answer
Proper pagination django template
Python Django
1 vote357 views1 answer
How to redirect to previous page in django
Python Django
10 votes350 views1 answer
Https://docs.djangoproject.com/en/2.0/howto/static-files/
Python Django
8 votes361 views6 answers
Django filters
Python Django