Using rest django rest framework for creating new object

Question

I have the following models

class Peri(models.Model):
    date = models.DateField()
    customer = models.ForeignKey(Customer)

class PeriTask(models.Model):
    #fields
    peri = models.ForeignKey(Peri)

My serializers are the following

class PeriSerializer(serializers.HyperlinkedModelSerializer):
    customer = serializers.PrimaryKeyRelatedField(read_only=True)

    class Meta:
        model = Peri
        fields = ('id', 'date', 'url', 'peritasks', 'customer')


class PeriTaskSerialiazer(serializers.HyperlinkedModelSerializer):
    tooth = serializers.PrimaryKeyRelatedField(read_only=True)

    class Meta:
        model = PeriTask
        fields = ('id', 'task_type', 'implant', 'furcation', 'bleeding1', 'bleeding2', 'bleeding3', 'plaque1', 'plaque2',
              'gingival_margin1', 'gingival_margin2', 'gingival_margin3', 'probing_depth1', 'probing_depth2',
              'probing_depth3', 'tooth', 'url', )

and my viewsets are

class PeriodontogrammaViewSet(ModelViewSet):
    serializer_class = PeriSerializer
    queryset = Peri.objects.all()


class PeriTaskViewSet(ModelViewSet):
    serializer_class = PeriTaskSerialiazer
    queryset = PeriTask.objects.all()

But when I try to create a new peri using the api it gives me the following integrity error

NOT NULL constraint failed: peri_peri.customer_id

My json data that beeing posted are

{"date": "2014-12-17",
 "customer": 27
}

I haven't created a serializer for customer since I am not interested in having api for my other models.

It's a standard view set...will include it in intial post

Apostolos
– Apostolos

2014-12-17 14:39:02 +00:00
Commented Dec 17, 2014 at 14:39 — Apostolos
– Apostolos, Commented Dec 17, 2014 at 14:39
Maybe you should post "customer_id": 27 ?

Mihai Zamfir
– Mihai Zamfir

2014-12-17 14:39:47 +00:00
Commented Dec 17, 2014 at 14:39 — Mihai Zamfir
– Mihai Zamfir, Commented Dec 17, 2014 at 14:39
No I get the same result with "customer_id"

Apostolos
– Apostolos

2014-12-17 14:43:54 +00:00
Commented Dec 17, 2014 at 14:43 — Apostolos
– Apostolos, Commented Dec 17, 2014 at 14:43
yes yes sorry editing right now

Apostolos
– Apostolos

2014-12-17 14:48:01 +00:00
Commented Dec 17, 2014 at 14:48 — Apostolos
– Apostolos, Commented Dec 17, 2014 at 14:48

Benjamin Toueg · Accepted Answer · 2014-12-17 14:57:24Z

1

In your serializer, you've set the customer key to read_only:

customer = serializers.PrimaryKeyRelatedField(read_only=True)

Try setting it to False or just simply removing this whole line (which seems superfluous to me)

answered Dec 17, 2014 at 14:57

Benjamin Toueg

11k7 gold badges50 silver badges81 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Apostolos Over a year ago

True...removing read_only did it. But is is it possible to make it read_only when on detail-view of peri's. I don't wan't this to be able to be edited with put request. Or is it all or nothing?

Benjamin Toueg Over a year ago

You are free to make as many serializer as you need. Why not having one read_only and not the other?

Apostolos Over a year ago

What do you mean? Could you be more specific if you please?

Collectives™ on Stack Overflow

Using rest django rest framework for creating new object

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related