87 lines
3.3 KiB
Python
87 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Created on 23.05.2011
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@author: christian
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"""
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from django.core.cache import cache
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from django.db import transaction
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from mahjong_ranking import models
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from . import logger
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class DenormalizationUpdateMiddleware(object):
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"""
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This Class deferres the recalculation for the Otaku XP at the end of a
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response.
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"""
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def process_response(self, request, response):
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if request.method != 'POST':
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# We only do this in POST request, to speedup the responsetime.
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return response
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# Start an SQL Transaction
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transaction.enter_transaction_management()
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transaction.managed(True)
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# recalculate tournament (event) rankings:
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event_ranking_queue = cache.get('event_ranking_queue', set())
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if len(event_ranking_queue) > 0:
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while len(event_ranking_queue) > 0:
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event_id, user_id = event_ranking_queue.pop()
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logger.info("recalculate %d tournament Ranking in %s", user_id,
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event_id)
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ranking = models.EventRanking.objects.get_or_create(
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event_id=event_id, user_id=user_id)[0]
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ranking.recalculate()
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self.recalculate_event_placement(event_id)
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cache.set('event_ranking_queue', event_ranking_queue, 360)
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transaction.commit()
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# recalculate dirty kyu/dan rankings:
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kyu_dan_ranking_queue = cache.get('kyu_dan_ranking_queue', set())
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while len(kyu_dan_ranking_queue) > 0:
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user_id = kyu_dan_ranking_queue.pop()
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ranking = models.KyuDanRanking.objects.get_or_create(
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user_id=user_id)[0]
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ranking.recalculate()
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cache.set('kyu_dan_ranking_queue', kyu_dan_ranking_queue, 360)
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transaction.commit()
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# Recaluclate Dirty LadderRankings:
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ladder_ranking_queue = cache.get('ladder_ranking_queue', set())
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while len(ladder_ranking_queue) > 0:
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season_id, user_id = ladder_ranking_queue.pop()
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if season_id and user_id:
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ranking = models.LadderRanking.objects.get_or_create(
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user_id=user_id, season_id=season_id)[0]
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ranking.recalculate()
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else:
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logger.error('Season: %i; Benutzer Nr. %i - existiert nicht!',
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season_id, user_id)
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cache.set('ladder_ranking_queue', ladder_ranking_queue, 360)
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transaction.commit()
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# Recaluclate Dirty Season Placements:
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ladder_season_queue = cache.get('ladder_season_queue', set())
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for season_id in ladder_season_queue:
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season = models.LadderSeason.objects.get_or_create(pk=season_id)[0]
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season.recalculate()
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cache.set('ladder_season_queue', ladder_season_queue, 360)
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transaction.commit()
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transaction.leave_transaction_management()
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return response
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def recalculate_event_placement(self, event_id):
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eventranking_set = models.EventRanking.objects.filter(
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event_id=event_id).order_by('avg_placement', '-avg_score')
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eventranking_set.update(placement=None)
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placement = 1
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for ranking in eventranking_set:
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ranking.placement = placement
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placement += 1
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ranking.save(force_update=True)
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