Fixed Hanchan count and filter from last merge.

src/mahjong_ranking/managers.py

@@ -23,8 +23,8 @@ class HanchanManager(models.Manager):
         :return: QuerySet Object
         """
         if user:
-            return self.user_hanchans(user, confirmed=True, until=until,
-                                      **filter_args)
+            return self.user_hanchans(
+                user, confirmed=True, since=since, until=until, **filter_args)
         hanchans = self.filter(confirmed=True, **filter_args)
         if since:
             hanchans = hanchans.filter(start__gt=since)
@@ -101,7 +101,7 @@ class HanchanManager(models.Manager):
         )
         queryset = queryset.filter(**filter_args)
         if since:
-            queryset = queryset.filter(start__gte=since)
+            queryset = queryset.filter(start__gt=since)
         if until:
             queryset = queryset.filter(start__lte=until)
         queryset = queryset.select_related().order_by('-start')

src/mahjong_ranking/models.py

@@ -475,6 +475,11 @@ class KyuDanRanking(models.Model):
             "recalculating Kyu/Dan points for %(user)s since %(since)s...",
             {'user': self.user, 'since': str(since)}
         )
+        if since:
+            valid_hanchans = valid_hanchans.filter(start__gt=since)
+        if until:
+            valid_hanchans = valid_hanchans.filter(start__lte=until)
+
         self.hanchan_count += valid_hanchans.count()
         for hanchan in valid_hanchans:
             hanchan.get_playerdata(self.user)
@@ -583,7 +588,7 @@ class KyuDanRanking(models.Model):
             self.kyu = 10
         elif self.kyu_points > 50:
             self.dan = 1
-            self.kyu = None
+            self.kyu = 0
             self.dan_points = 0
             self.kyu_points = 0
         else: