Fix individual cost for logged in users

aleksis/apps/paweljong/models.py

@@ -192,11 +192,10 @@ class Event(ExtensibleModel):
         return reverse("event_by_name", kwargs={"slug": self.slug})
 
     def individual_cost(self, request=None):
-        if request and request.user.is_authenticated:
-            if Voucher.objects.filter(event=self, person=request.user.person, used=False).exists():
-                voucher = Voucher.objects.get(event=self, person=request.user.person, used=False)
-                individual_cost = voucher.discount * self.cost / 100
-                return individual_cost
+        if request and request.user.is_authenticated and Voucher.objects.filter(event=self, person=request.user.person, used=False).exists():
+            voucher = Voucher.objects.get(event=self, person=request.user.person, used=False)
+            individual_cost = voucher.discount * self.cost / 100
+            return individual_cost
         else:
             return self.cost