Django下载文件为空 [英] Django download file empty

问题描述

我正在写一个简单的功能，用于从服务器下载某个文件到我的机器。
该文件由其id代表。该文件是locatd corectly，下载完成，但下载的文件（虽然在服务器上命名为空）是空的。
我的下载功能如下所示：

I am writing a simple function for downloading a certain file, from the server, to my machine. The file is unique represented by its id. The file is locatd corectly, and the download is done, but the downloaded file (though named as the one on the server) is empty. my download function looks like this:

def download_course(request, id):
    course = Courses.objects.get(pk = id).course
    path_to_file = 'root/cFolder'
    filename = __file__ # Select your file here.                                
    wrapper = FileWrapper(file(filename))
    content_type = mimetypes.guess_type(filename)[0]
    response = HttpResponse(wrapper, content_type = content_type)
    response['Content-Length'] = os.path.getsize(filename)
    response['Content-Disposition'] = 'attachment; filename=%s/' % smart_str(course)

    return response

我在哪里可以错？谢谢！

where can i be wrong? thanks!

推荐答案

我回答了这个问题这里，希望它有帮助。

I answered this question here, hope it helps.

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