带有文件错误的 Django REST Framework POST 数据(使用 ModelResource)

Question

我在尝试在 Django REST Framework 应用程序中使用文件发布数据时遇到了一个非常大的问题。我通过 djangorestframework 网站上的示例创建了一个简单的应用程序。所以我有 urls 文件:

class MyImageResource(ModelResource):
    model = Image

并在 urlpatters 中:

url(r'^image/$', ListOrCreateModelView.as_view(resource=MyImageResource)),
url(r'^image/(?P<pk>[^/]+)/$', InstanceModelView.as_view(resource=MyImageResource)),

图像模型很简单:

class Image(models.Model):
    image = models.ImageField(upload_to=get_file_path)
    name = models.CharField(max_length=256, blank=True)
    description = models.TextField(blank=True)

在浏览器中测试 REST 页面，效果完美。甚至用文件发布数据。

我的问题是我想创建一个简单的 python 应用程序来发布数据。我使用了简单的 urllib2，但我收到 500 内部错误或 400 错误请求:

poza = open('poza.jpg', 'rb')


initial_data = (    
    {'name', 'Imagine de test REST'},
    {'description', 'Dude, this is awesome'},
    {'image', poza},
)

d = urllib.urlencode(initial_data)
r = urllib2.Request('http://localhost:8000/api/image/', data=d,
                headers={'Content-Type':'multipart/form-data'})
resp = urllib2.urlopen(r)
code = resp.getcode()
data = resp.read()

我也尝试过 MultipartPostHandler:

import MultipartPostHandler, urllib2, cookielib
cookies = cookielib.CookieJar()

opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookies),
                          MultipartPostHandler.MultipartPostHandler)

params = {
    "name":"bob",
    "description":"riviera",
    "content" : open("poza.jpg", "rb")
}

opener.open("http://localhost:8000/api/image/", params)

但相同:500 或 400 错误，服务器 (python manage.py runserver) 因以下错误而停止:

Exception happened during processing of request from ('127.0.0.1', 64879)
Traceback (most recent call last):
  File "C:\Python27\lib\SocketServer.py", line 284, in _handle_request_noblock
    self.process_request(request, client_address)
  File "C:\Python27\lib\SocketServer.py", line 310, in process_request
    self.finish_request(request, client_address)
  File "C:\Python27\lib\SocketServer.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "C:\Python27\lib\site-packages\django\core\servers\basehttp.py", line 570
, in __init__
    BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
  File "C:\Python27\lib\SocketServer.py", line 641, in __init__
    self.finish()
  File "C:\Python27\lib\SocketServer.py", line 694, in finish
    self.wfile.flush()
  File "C:\Python27\lib\socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 10053] An established connection was aborted by the software in yo
ur host machine

如果有人有，请给我一个使用文件发布数据的示例，或者告诉我发布 python 代码有什么问题。我找不到更多的例子。

服务器看起来不错，我可以在浏览器中 POST 数据。非常感谢。

Answer 1

它看起来好像不是在读取文件，而是传递文件指针？

尝试:

initial_data = (    
    {'name', 'Imagine de test REST'},
    {'description', 'Dude, this is awesome'},
    {'image', poza.read()},
)