Added download url handler

spa/audio.py

@@ -10,9 +10,23 @@ class AudioHandler(object):
     def urls(self):
         pattern_list = [
             url(r'^stream/(?P<mix_id>\d+)/$', 'spa.audio.start_streaming', name='audio_start_streaming'),
+            url(r'^download/(?P<mix_id>\d+)/$', 'spa.audio.download', name='audio_download'),
         ]
         return pattern_list
 
+def download(request, mix_id):
+    try:
+        mix = Mix.objects.get(pk=mix_id)
+        if mix is not None:
+            filename = mix.local_file.path   # Select your file here.
+            file, ext = os.path.splitext(filename)
+            response = sendfile(request, filename, attachment=True, attachment_filename="%s.%s" % (mix.title, ext))
+            return response
+    except Exception, ex:
+        print ex
+
+    raise Http404("Mix not found")
+
 def start_streaming(request, mix_id):
     try:
         mix = Mix.objects.get(pk=mix_id)