def request(request):
today = date.today()
book = Book.objects.get(pk=int(request.GET.get("book")))
cardowner = Cardowner.objects.get(user=request.user)
if (
len(
LendRequest.objects.filter(
requester=cardowner, book=book, date__year=today.year, date__month=today.month, date__day=today.day
)
)
>= 10
):
return HttpResponse(status=403)
lend_request = LendRequest()
lend_request.requester = cardowner
lend_request.book = book
book_requests = LendRequest.objects.filter(book=book, status=LendRequest.WAITING)
if len(book_requests) == 0:
lend_request.status = LendRequest.FOR_LEND
mailer.send_borrow_invite(cardowner, book)
else:
lend_request.status = LendRequest.WAITING
lend_request.save()
return HttpResponse(status=200)
def save_model(self, request, obj, form, change):
if obj.handback and 'handback' in form.changed_data:
book_requests = LendRequest.objects.filter(book=obj.borrowed_item, status=LendRequest.WAITING).order_by('date')
if len(book_requests) > 0:
lend_request = book_requests[0]
lend_request.status = LendRequest.FOR_LEND
mailer.send_borrow_invite(lend_request.requester, obj.borrowed_item)
lend_request.save()
obj.save()