update link for buy school

apps/payment/views.py

@@ -50,11 +50,15 @@ class SchoolBuyView(TemplateView):
 
     def get(self, request, *args, **kwargs):
         host = request.scheme + '://' + request.get_host()
-        weekdays = request.GET.get('weekdays', [])
+        weekdays = set(request.GET.getlist('weekdays', []))
         if not weekdays:
             messages.error(request, 'Выберите несколько дней недели.')
             return redirect('index')
-        weekdays = [int(weekday) for weekday in weekdays]
+        try:
+            weekdays = [int(weekday) for weekday in weekdays]
+        except ValueError:
+            messages.error(request, 'Ошибка выбора дней недели.')
+            return redirect('index')
         school_payment = SchoolPayment.objects.create(
             user=request.user,
             weekdays=weekdays,

project/templates/lilcity/index.html

@@ -469,7 +469,10 @@
               </div>
             </div>
           </div>
-          <div class="buy__foot"><a class="buy__btn btn btn_md" href="#">ПЕРЕЙТИ К ОПЛАТЕ</a></div>
+          <div class="buy__foot">
+            {% comment %}В ссылке, в параметре запроса weekdays, нужно указать выбранные дни недели{% endcomment %}
+            <a class="buy__btn btn btn_md" href="{% url 'school-checkout' %}?weekdays=1&weekdays=2">ПЕРЕЙТИ К ОПЛАТЕ</a>
+          </div>
         </div>
       </div>
     </div>