fix: Handle no web seat case for syncing job (#4177)

* fix: Handle no web seat case on sync mobile seats job

ecommerce/extensions/iap/management/commands/sync_mobile_seats_price_and_expiry_with_web.py

@@ -43,9 +43,12 @@ def handle(self, *args, **options):
                 attribute_values__value_text=CertificateType.VERIFIED,
             ).exclude(stockrecords__partner_sku__icontains="mobile").first()
 
+            if not web_seat:
+                logger.info('While syncing could not find web seat for %s', product.title)
+                continue
+
             for mobile_seat in mobile_seats:
-                info = 'Syncing {} with {}'.format(mobile_seat.title, web_seat.title)
-                logger.info(info)
+                logger.info('Syncing %s with %s', mobile_seat.title, web_seat.title)
 
                 stock_record = mobile_seat.stockrecords.all()[0]
                 stock_record.price_excl_tax = web_seat.stockrecords.all()[0].price_excl_tax

ecommerce/extensions/iap/management/commands/tests/test_sync_mobile_seats_price_and_expiry_with_web.py

@@ -18,6 +18,10 @@ def setUp(self):
         self.course_with_audit_seat = self.create_course_and_seats(create_mobile_seats=False, create_web_seat=False)
         self.course_with_unsync_seats = self.create_course_and_seats(create_mobile_seats=True, create_web_seat=True)
         self.course_with_unsync_seats2 = self.create_course_and_seats(create_mobile_seats=True, create_web_seat=True)
+        self.course_with_mobile_seats = self.create_course_and_seats(create_mobile_seats=True, create_web_seat=True)
+        web_seat = self.get_web_seat_for_course(self.course_with_mobile_seats)
+        web_seat.delete()
+
         mobile_seats = self.get_mobile_seats_for_course(self.course_with_unsync_seats)
         mobile_seats = list(mobile_seats) + list(self.get_mobile_seats_for_course(self.course_with_unsync_seats2))