我正在尝试创建一个接受(键/值)数据和多个文件的端点。用户可以随请求一起发送serial
和多个文件。上载的文件必须保存在FileModel
中,并向RequestModel
添加一个关系。问题是当我发送请求时,RequestSerializer
无法解析files
,并且我得到一个关于缺少files
字段的错误
#tests.py
def test_create_request_with_files(self):
with tempfile.NamedTemporaryFile() as file:
file.write(b"SomeFakeData")
file.seek(0)
request = {
'files': [file],
'serial': "SomeSerial",
}
res = self.client.post(
'/CreateRequest/', request, format='multipart')
print(res.data)
self.assertEqual(res.status_code, status.HTTP_201_CREATED)
#---------------------------------------------------------------------------
# models.py
class FileModel(models.Model):
file = models.FileField(upload_to='upload_files')
class RequestModel(models.Model):
serial = models.CharField(max_length=100)
files = models.ManyToManyField('FileModel', blank=True)
def __str__(self):
return str(self.id)
#---------------------------------------------------------------------------
# serializers.py
class FileSerializer(serializers.ModelSerializer):
class Meta:
model = FileModel
fields = '__all__'
read_only_fields = ('id',)
class RequestSerializer(serializers.ModelSerializer):
files = FileSerializer(many=True)
def create(self, validated_data):
files = validated_data.pop('files')
request_model = RequestModel.objects.create(**validated_data)
for file in files:
file_model = FileModel.objects.create(file=file)
request_model.files.add(file_model)
request_model.save()
return request_model
class Meta:
model = RequestModel
fields = '__all__'
read_only_fields = ('id')
#---------------------------------------------------------------------------
#views.py
class RequestList(generics.ListCreateAPIView):
queryset = RequestModel.objects.all()
serializer_class = RequestSerializer
parser_classes = (FormParser, MultiPartParser)
def post(self, request, *args, **kwargs):
serializer = RequestSerializer(data=request.data)
if serializer.is_valid():
request_model = serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
测试的输出:
{'files': [ErrorDetail(string='This field is required.', code='required')]}
Fs
======================================================================
FAIL
----------------------------------------------------------------------
Traceback (most recent call last):
File ".tests.py", line 95, in test_create_request_with_files
self.assertEqual(res.status_code, status.HTTP_201_CREATED)
AssertionError: 400 != 201
这不是django的问题。使用
multipart/form-data
时无法传递对象。列表将转换为[object Object]
字符串。 相反,试试:file1
,file2
等等我会使用动态解析器,比如:
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