Ok, Finally, I solve my issue: In UserViewSet:
def perform_create(self, serializer):
serializer.save(twitter_name='Blah Blah'
Em domingo, 14 de maio de 2017 20:44:42 UTC-3, Sidon escreveu:
>
> I am looking a way for insert a parameter in a data serializer before
> save, I have a model with only 2 fields, for stay easy, let's consider that
> both are of an API service on the internet, like twitter. For example.
>
> I have to accept a command line, via curl, like this:
> curl -X POST -F twitter_id=1399 http://localhost:8000/api/users/, then to
> consult the api service and, finally, save on my database.
>
> My problem is: There is just one parameter (twitter_id) on the query, how
> to insert a second parameter (twitter_name)?
>
> Below I show my code and my try (commented)
>
> model:
> class User(models.Model):
> twitter_id
> twitter_name
>
> view.py:
>
> class UserViewSet(viewsets.ModelViewSet):
> serializer_class = UserSerializer
> queryset = User.objects.all()
>
> def get_queryset(self):
> queryset = User.objects.all()
> twt_id = self.request.query_params.get('twitter_id', None)
> limit = self.request.query_params.get('limit', None)
>
> if tw_id is not None:
> queryset = queryset.filter(twitter_id=tw_id)
> elif limit is not None:
> queryset = queryset[:int(limit)]
> return queryset
>
> serializer.py
>
> class UserSerializer(serializers.ModelSerializer):
> links = serializers.SerializerMethodField()
> data_twt = {}
>
> class Meta:
> model = user
> fields = ('twitter_id', 'twitter_name')
>
> # ...
>
> def get_links(self, obj):
> request = self.context['request']
> links = {'self': reverse('person-detail', kwargs={'pk': obj.pk},
> request=request)}
>
> def validate(self, data):
> if bool(self.context['request'].POST):
> tw_id = str(data['twitter_id'])
> _tw_id = User.objects.filter(twitter_id=fb_id)
> if _tw_id.exists():
> raise serializers.ValidationError('User already
> registered')
> else:
> try:
> self.data_twt = get_twitter_person(fb_id)
> # Here I tried to modify data, but data is read
> only
> # data['twitter_name'] = self.data_twt['name']
> except:
> raise serializers.ValidationError('Id not in
> Twitter')
> return data
>
>
>
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