LIL-622

apps/payment/views.py

@@ -109,12 +109,15 @@ class SchoolBuyView(TemplateView):
             messages.error(request, 'Ошибка выбора дней недели.')
             return redirect('school:summer-school')
         if add_days:
-            _school_payment = SchoolPayment.objects.get(
+            _school_payment = SchoolPayment.objects.filter(
                 user=request.user,
                 date_start__lte=now().date(),
                 date_end__gte=now().date(),
                 add_days=False,
-            )
+            ).first()
+            if not _school_payment:
+                add_days = False
+        if add_days:
             school_payment = SchoolPayment.objects.create(
                 user=request.user,
                 weekdays=weekdays,