def add_match(self, match):
"""
Called on each participant after a match ends.
"""
# update cache results with game result
if self.cached_results:
results = json.loads(self.cached_results)
else:
results = []
winner = match.winner == self
opponent = match.loser if winner else match.winner
new_rating = match.winner_rating_after if winner else \
match.loser_rating_after
results.append({
'winner': winner,
'opponent_name': opponent.name,
'played_time': str(match.played_time),
'played_timestamp': get_timestamp(match.played_time)
})
self.cached_results = json.dumps(results[-CACHED_RATING_LIMIT:])
# update player with new rating
self.update_rating(new_rating, match)
# save the player in the database
self.save()
def update_rating(self, new_rating, match):
"""Called to update the player's rating after a match."""
self.rating = new_rating
# update cached ratings with rating change
if self.cached_rating_changes:
rating_changes = json.loads(self.cached_rating_changes)
else:
rating_changes = []
rating_changes.append({
"rating": new_rating,
"played_time": str(match.played_time),
"played_timestamp": get_timestamp(match.played_time)
})
self.cached_rating_changes = json.dumps(
rating_changes[-CACHED_RATING_LIMIT:])
def update_rank(self, new_rank, match):
"""
Called to update the player's rank. This can be caused
by OTHER player's matches in a rank stealing ladder.
"""
self.rank = new_rank
# update cached ranks with rank change
if self.cached_rank_changes:
rank_changes = json.loads(self.cached_rank_changes)
else:
rank_changes = []
rank_changes.append({
"rank": new_rank,
"played_time": str(match.played_time),
"played_timestamp": get_timestamp(match.played_time)
})
self.cached_rank_changes = json.dumps(
rank_changes[-CACHED_RANK_LIMIT:])
self.save()