@permission_required('contact.change_attachment')
def attachment(request, contact_id, tag):
attachment = get_object_or_404(Attachment, contact_id=contact_id, tag=tag)
@permission_required('contact.change_attachment')
def attachment(request, contact_id, tag):
attachment = get_object_or_404(Attachment, contact_id=contact_id, tag=tag)