问Django上传多个媒体并保存

EN

forms.py
class FileFieldForm(forms.ModelForm):
stuff_image = forms.FileField(widget=forms.ClearableFileInput(attrs={'multiple': True}))
class Meta:
    model = Thing
    fields = ('title', 'description', 'quantity','stuff_image')

model.py
def generate_filename(instance, filename):
ext = filename.split('.')[-1]
return '' + str(int(time())) + '.' + ext

class Thing(models.Model):  
title = models.CharField(max_length=255)
description = models.TextField(blank = True)
quantity = models.IntegerField(blank =True) 
creation_date = models.DateTimeField(auto_now_add=True)
stuff_image = models.FileField(upload_to=generate_filename)

def __unicode__(self):
    return self.title

class Meta:
    ordering = ['title']

@receiver(post_delete, sender=Thing)
def stuff_post_delete_handler(sender, **kwargs):
Thing = kwargs['instance']
storage, path = Thing.stuff_image.storage, Thing.stuff_image.path
storage.delete(path)

view.py

def create_stuff(request):
if request.method == 'POST':
    form = FileFieldForm(request.POST, request.FILES)
    files = request.FILES.getlist('stuff_image')
    if form.is_valid():
        for f in files:
            form.save()
        return redirect('list-stuff')
else:
    form = FileFieldForm()
return render(request, 'stuffapp/create_stuff.html', {'form': form})