Django Rest框架批量创建

Question

我正在尝试创建一个 API，您可以使用 django Rest 框架通过单个 Post 请求创建多个对象。但是，我的序列化器提供了一个我不明白的错误。首先这是我的代码的骨架

我的序列化器:

class MyModelSerializer(serializers.ModelSerializer):
# override the constructor to always use the many flag
def __init__(self, *args, **kwargs):
    many = kwargs.pop('many', True)
    super(MyModelSerializer, self).__init__(many=many, *args, **kwargs)

class Meta:
    model = MyModel
    fields = ('field1', 'field2')

我的 ListView

class MyModelListView(generics.ListCreateAPIView):
    queryset = MyModel.objects.all()
    serializer_class = MyModelSerializer

    def post(self, request, *args, **kwargs):
        if request.DATA['batch']:
            json = request.DATA['batchData']
            stream = StringIO(json)
            data = JSONParser().parse(stream)
            request._data = data
        return super(CharacterDatumList, self).post(request, *args, **kwargs)

我的ajax调用

$.ajax({
    type: "POST",
    url: '/characterDatum/',
    data: {
        'batch' : true,
        'batchData' : '[{"field1": "x", "field2": "y", },{"field1": "a", "field2": "b"}]'
    },
    success: function(response) {
        console.log('success');
    },
    datatype: 'json'
});

但是，在 django Rest 框架中，我在下面的行中收到序列化验证错误

class CreateModelMixin(object):
    """
    Create a model instance.
    """
    def create(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.DATA, files=request.FILES)
        if serializer.is_valid(): # returns not valid

有谁知道为什么会出现这种情况吗？

Answer 1

我找到了!序列化器实际上并未使用 Many 选项，因此我必须重写 MyModelListView 中的 get_serializer 方法

def get_serializer(self, instance=None, data=None,
                        files=None, many=True, partial=False):
        return super(MyModelListView, self).get_serializer(instance, data, files, many, partial)