Django文件上传和模型FileField

Question

我离成功很近了……但我还没有完全理解上传视图与模型之间的联系。当我在模型的FileField中使用回调时，上传可以正常工作，但是我不确定实际的文件复制发生在哪里。目标是确保chunking正在进行，但是文件复制操作似乎被隐藏在某个地方？

以下是我的代码： 模型：

def get_media_upload_dir(instance, filename):
    user_id  = instance.user.id
    upload_dir = "%s/%d/%s" % (settings.MEDIA_ROOT, user_id, filename)
    print "Upload dir set to: %s" % upload_dir
    return upload_dir

class MediaFile(models.Model):
    media_file     = models.FileField(upload_to=get_media_upload_dir)
    download_count = models.PositiveIntegerField(default=0)

视图：

def file_upload(request, course_id):    
    if request.method == 'POST':
        form = FileUploadForm(request.POST, request.FILES)
        if form.is_valid():
            uploaded = form.cleaned_data['file_upload']
            mediaFile = MediaFile(media_file=uploaded,
                                owner=request.user.profile,
                                creator=request.user.profile)
            mediaFile.save()

            return HttpResponseRedirect('/course/%s/' % course_id)
    else:
        form = FileUploadForm()
    return render_to_response('course/file_upload.html', {'form':form,'course':course}, context_instance=RequestContext(request))

- Scott

---

你读过 http://docs.djangoproject.com/en/dev/topics/http/file-uploads/?from=olddocs#handling-uploaded-files 吗？它看起来是你在寻找的内容。我不确定你实际上在问什么，所以不想回答。 - Bartek

Answer 1

存储过程发生在这里：http://code.djangoproject.com/browser/django/trunk/django/db/models/fields/files.py#L90。Django使用自己的API来访问文件存储：http://docs.djangoproject.com/en/dev/ref/files/storage/。但是，如果您需要分块处理，可以采用Bartek的建议！

- Bernhard Vallant