Django REST框架3.1-PUT即創建mixin類，自定義lookup_field

Question

利用此處提供的PUT-create-create mixin類（類AllowPUTAsCreateMixin ）：

class Tree(models.Model):   
   myfield = models.CharField(max_length=100,unique=True)
   species = models.CharField(max_length=100, blank=True, default='')

class TreeSerializer(serializers.ModelSerializer):
    class Meta:
        model = Tree
        fields = ('myfield', 'species')
        lookup_field = 'myfield'

class TreeView(viewsets.ModelViewSet, AllowPUTAsCreateMixin):

     queryset = Tree.objects.all()
     serializer_class = TreeSerializer
     lookup_field = 'myfield'

     def update(self, request, myfield=None):
        return AllowPUTAsCreateMixin.update(self, request, lookup_field='myfield')

class AllowPUTAsCreateMixin(object):

     def update(self, request, *args, **kwargs):
          lookup_field = kwargs.pop('lookup_field')

當將數據提交為JSON（使用httpie）時：

http PUT 127.0.0.1:8000/xxx/trees/123456 <tree.json

對象已創建並公開@ / ... / trees / {myfield}

做完了！

Answer 1

我的錯誤是由於對正確使用kwargs的理解不足。 我在問題帖中更正了我的代碼。

謝謝！