Support PostgreSQL JSONField

[ghost]

hi thank you very much
,
DRF not support JSONField, but Django 1.9 support JSONField

url: https://docs.djangoproject.com/en/dev/ref/contrib/postgres/fields/#jsonfield

i use django 1.9 ,DRF 3.13 ,Postgresql 9.4

My database table fields: [i use postgresql]

 id<int> , jsonInfo<jsonb>

1,{"username": "dddd","pass":"fffff"}
2,{"username": "1111","pass":"22222"}
3,{"username": "33333","pass":"444444"}

---

i created custom JSONField in DRF

---

class JSONField(serializers.ReadOnlyField):

    def to_native(self, obj):
        return json.dumps(obj)

    def from_native(self, value):
        return json.loads(value)

---

My Serializer:

---

class tradeSerializer(serializers.HyperlinkedModelSerializer):
    id = serializers.IntegerField(read_only=True)
    username= JSONField(source='jsonInfo__username')

---

then :

i run

curl -H 'Accept: application/json; indent=4' -u admin:password http://127.0.0.1:8000/tr/

i can get 'id' field value, but i canot get username value, it's return null

---

if i changed My Serializer code like this:

---

class tradeSerializer(serializers.HyperlinkedModelSerializer):
    id = serializers.IntegerField(read_only=True)
    username= JSONField(source='jsonInfo')

---

i run

curl -H 'Accept: application/json; indent=4' -u admin:password http://127.0.0.1:8000/tr/

is it ok!
but it's return all jsonInfo field value

i hope , i can use JSONField(source='jsonInfo__username')

i only want get username

can you help me ?

thank you very much

:)

[carltongibson]

According to the Roadmap https://code.djangoproject.com/wiki/Version1.9Roadmap the alpha for 1.9 is not due for another two months. Final release is a while after that. DRF support for JSONField will be in line with that.

[ghost]

@carltongibson thank you :)

[tomchristie]

There's still at least some work to do here...

• We probably want to validate that only valid JSON native datatypes are present in the data structure.
• We may want to treat string and binary inputs as raw JSON and parse them.
• We need to map the JSONField model field onto a serializer field by default.

But yes, using DictField will give you 90% of what you need already.