相关疑难解决方法(0)

我在views.py中有以下视图 -

class FilterView(generics.ListAPIView):
    model = cdx_composites_csv

    def get(self, request, format=None):
        vendor = self.request.GET.get('vendor')
        filename = self.request.GET.get('filename')
        tablename = filename.replace(".","_")
        model = get_model(vendor, tablename)
        filedate = self.request.GET.get('filedate')        
        snippets = model.objects.using('markitdb').filter(Date__contains=filedate)
        serializer = cdx_compositesSerializer(snippets, many=True)
        if format == 'raw':
            zip_file = open('C:\temp\core\files\CDX_COMPOSITES_20140626.zip', 'rb')
            response = HttpResponse(zip_file, content_type='application/force-download')
            response['Content-Disposition'] = 'attachment; filename="%s"' % 'CDX_COMPOSITES_20140626.zip'
            return response

        else:
            return Response(serializer.data)

它适用于xml,json,csv,但是当我尝试使用raw时,它不会返回文件,而是提供""详细信息":"未找到""为什么会发生这种情况？

我正在点击的URL如下 -

有效的json示例 -

http://dt-rpittom:8000/testfilter/?vendor=markit&filename=cdx_composites.csv&filedate=2014-06-26&format=json

这应该返回一个zip文件供下载.

http://dt-rpittom:8000/testfilter/?vendor=markit&filename=cdx_composites.csv&filedate=2014-06-26&format=raw