XLSX Export vereinheitlicht.

Spieler Hanchanlisten können nun als XLSX exportiert werden.
Anpassungen in den Einstellungen für die parametisierten Kyu/Dan Berechnung.

src/mahjong_ranking/management/commands/updateranking.py

@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+
+"""
+Recalculate Mahjong Rankings...
+"""
+
+from datetime import date, datetime, time
+
+from django.core.management.base import BaseCommand
+from django.utils import timezone
+from django.utils.dateparse import parse_date
+
+from mahjong_ranking import models
+
+
+class Command(BaseCommand):
+    """ Recalculate all Kyu/Dan Rankings """
+
+    help = "Recalculate the Kyu/Dan Rankings"
+
+    def add_arguments(self, parser):
+        parser.add_argument('-s', '--since', nargs='?', type=parse_date,
+                            metavar='YYYY-MM-DD',
+                            help='Use all Hanchans since the given date.')
+        parser.add_argument('-u', '--until', nargs='?', type=parse_date,
+                            metavar='YYYY-MM-DD',
+                            help='Only use Hanchans until the given date.')
+        parser.add_argument('-f', '--force', action='store_true',
+                            help="Force the recalculation of all Hanchans.")
+
+    def handle(self, *args, **options):
+        since = options.get('since', None)
+        until = options.get('until', None)
+        force_recalc = options.get('force')
+        if isinstance(since, date):
+            since = datetime.combine(since, time(0, 0, 0))
+            since = timezone.make_aware(since)
+        if isinstance(until, date):
+            until = datetime.combine(until, time(23, 59, 59))
+            until = timezone.make_aware(until)
+        models.KyuDanRanking.objects.update(since=since, until=until,
+                                            force_recalc=force_recalc)