need help on multiple file uploads

[Robb Rodirguez Jr.]

im having to with multiple file uploads, when i tried to upload files only 1 file will be saved..

here's my code:

views.py

def attachments(request):
    to = TravelOrder.objects.order_by('-date_filling').last()
    if request.method == 'POST':
        form = AttachmentsForm(request.POST, request.FILES)
        if form.is_valid():
            for f in request.FILES.getlist('attachment'):
                instance = form.save(commit=False)
                instance.travel_order = to
                instance.attachment = f
                instance.save()
                print('YEW')
                return redirect('attach')

    else:
        form = AttachmentsForm()

    context = {
        'form': form
    }
    return render(request, 'employee/attachments.html', context)

models.py

class TravelOrder(models.Model):
    created_by = models.CharField(max_length=255)
    start_date = models.DateField(auto_now=False)
    end_date = models.DateField(auto_now=False)
    wfp = models.CharField(max_length=255, verbose_name='Wfp Where to be charged')
    purpose_of_travel = models.CharField(max_length=255)
    region = models.ForeignKey(Region, on_delete=models.CASCADE)
    venue = models.CharField(max_length=255)
    date_filling = models.DateTimeField(auto_now_add=True)
    status = models.CharField(max_length=15)

    def __str__(self):
        return self.purpose_of_travel

class Attachements(models.Model):
    at_id = models.AutoField(primary_key=True)
    travel_order = models.ForeignKey(TravelOrder, on_delete=models.CASCADE)
    attachment = models.FileField(upload_to='attachment/')

forms.py
class AttachmentsForm(forms.ModelForm):
    class Meta:
        model = Attachements
        exclude = ['travel_order']
        fields = ('attachment',)
        widgets = {
            'attachment': forms.ClearableFileInput(attrs={'multiple':True})
        }


hope you can help me guys. thank you..