From 9920ef5713a86fc7559b3359ad37d6936dd5005a Mon Sep 17 00:00:00 2001
From: gzbender <gzbender74@gmail.com>
Date: Sun, 2 Sep 2018 21:28:48 +0500
Subject: [PATCH] LIL-650

---
 apps/payment/models.py | 37 ++++++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/apps/payment/models.py b/apps/payment/models.py
index 4645b68d..21e6171f 100644
--- a/apps/payment/models.py
+++ b/apps/payment/models.py
@@ -123,26 +123,29 @@ class Payment(PolymorphicModel):
         if course:
             price = course.price
         else:
-            school_payments = SchoolPayment.objects.filter(
-                user=user,
-                date_start__lte=now().date(),
-                date_end__gte=now().date(),
-                add_days=False,
-                status__in=[
-                    Pingback.PINGBACK_TYPE_REGULAR,
-                    Pingback.PINGBACK_TYPE_GOODWILL,
-                    Pingback.PINGBACK_TYPE_RISK_REVIEWED_ACCEPTED,
-                ],
-            )
-            school_schedules_purchased = school_payments.annotate(
-                joined_weekdays=Func(F('weekdays'), function='unnest', )
-            ).values_list('joined_weekdays', flat=True).distinct()
-            weekdays = set(map(int, weekdays)) - set(school_schedules_purchased)
+            if user:
+                school_payments = SchoolPayment.objects.filter(
+                    user=user,
+                    date_start__lte=now().date(),
+                    date_end__gte=now().date(),
+                    add_days=False,
+                    status__in=[
+                        Pingback.PINGBACK_TYPE_REGULAR,
+                        Pingback.PINGBACK_TYPE_GOODWILL,
+                        Pingback.PINGBACK_TYPE_RISK_REVIEWED_ACCEPTED,
+                    ],
+                )
+                school_schedules_purchased = school_payments.annotate(
+                    joined_weekdays=Func(F('weekdays'), function='unnest', )
+                ).values_list('joined_weekdays', flat=True).distinct()
+                weekdays = set(map(int, weekdays)) - set(school_schedules_purchased)
+                prev_school_payment = school_payments.last()
+                add_days = bool(prev_school_payment)
+            else:
+                add_days = False
             school_schedules = SchoolSchedule.objects.filter(
                 weekday__in=weekdays,
             )
-            prev_school_payment = school_payments.last()
-            add_days = bool(prev_school_payment)
             if add_days:
                 weekdays_count = weekdays_in_date_range(now().date(), prev_school_payment.date_end)
                 all_weekdays_count = weekdays_in_date_range(prev_school_payment.date_start, prev_school_payment.date_end)