Another Step in the Quest to clean up the code base.

src/mahjong_ranking/management/commands/update_ranking.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+
+"""
+Recalculate Mahjong Rankings...
+"""
+
+from django.core.management.base import BaseCommand
+from mahjong_ranking import models
+
+
+class Command(BaseCommand):
+    """ Recalculate all Kyu/Dan Rankings """
+
+    help = "Recalculate all Kyu/Dan Rankings"
+
+    def handle(self, *args, **options):
+        for ranking in models.KyuDanRanking.objects.all():
+            ranking.recalculate()