Question

我有以下视图功能，可以创建一个zip文件并将其发送到客户端。除了zip文件，我还想使用django.contrib.messages向用户显示成功消息。我的问题是如果我使用HttpResponseRedirect客户端获取消息但不获取zip文件。另一方面，如果我使用HttpResponse客户端获取zip文件但不获取消息。有没有办法实现这两种功能？

import os
from StringIO import StringIO
from zipfile import ZipFile
from django.contrib import messages
from django.http import HttpResponseNotAllowed, HttpResponse, HttpResponseRedirect
...

def export_all(request):
    """
        Create a zip file and return it for download.
    """
    in_memory = StringIO()
    zip = ZipFile(in_memory, "a")
    exported_date = datetime.datetime.now().strftime('%d-%h-%Y')
    zip_file_name = 'my_files_' + exported_date

    a_to_export = A.objects.all().order_by('name')
    b_to_export = B.objects.all().order_by('name')

    # add relevant content to the zip file
    export_a(a_to_export, zip)
    export_b(b_to_export, zip)

    zip.close()

    response = HttpResponse(mimetype="application/zip")
    response["Content-Disposition"] = "attachment; filename=" + zip_file_name + '.zip'

    in_memory.seek(0)
    response.write(in_memory.read())

    messages.success(request, 'All files exported successfully.')

    # If I use HttpResponseRedirect client gets the message but not the zip file.
    return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))

    # If I use HttpResponse client gets the zip file but not the message.
    return response

如何将一个zip文件和一条消息一起发送到Django中的客户端？

0 个答案: