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fpdb/pyfpdb/Database.py

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#!/usr/bin/env python
"""Database.py
Create and manage the database objects.
"""
# Copyright 2008, Ray E. Barker
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
########################################################################
# ToDo: - rebuild indexes / vacuum option
# - check speed of get_stats_from_hand() - add log info
# - check size of db, seems big? (mysql)
# - investigate size of mysql db (200K for just 7K hands? 2GB for 140K hands?)
# postmaster -D /var/lib/pgsql/data
# Standard Library modules
import os
import sys
import traceback
from datetime import datetime, date, time, timedelta
from time import time, strftime, sleep
from decimal import Decimal
import string
import re
import Queue
import codecs
# pyGTK modules
# FreePokerTools modules
import fpdb_db
import Configuration
import SQL
import Card
import Tourney
import Charset
from Exceptions import *
log = Configuration.get_logger("logging.conf")
encoder = codecs.lookup('utf-8')
class Database:
MYSQL_INNODB = 2
PGSQL = 3
SQLITE = 4
hero_hudstart_def = '1999-12-31' # default for length of Hero's stats in HUD
villain_hudstart_def = '1999-12-31' # default for length of Villain's stats in HUD
# Data Structures for index and foreign key creation
# drop_code is an int with possible values: 0 - don't drop for bulk import
# 1 - drop during bulk import
# db differences:
# - note that mysql automatically creates indexes on constrained columns when
# foreign keys are created, while postgres does not. Hence the much longer list
# of indexes is required for postgres.
# all primary keys are left on all the time
#
# table column drop_code
indexes = [
[ ] # no db with index 0
, [ ] # no db with index 1
, [ # indexes for mysql (list index 2) (foreign keys not here, in next data structure)
# {'tab':'Players', 'col':'name', 'drop':0} unique indexes not dropped
# {'tab':'Hands', 'col':'siteHandNo', 'drop':0} unique indexes not dropped
#, {'tab':'Tourneys', 'col':'siteTourneyNo', 'drop':0} unique indexes not dropped
]
, [ # indexes for postgres (list index 3)
{'tab':'Gametypes', 'col':'siteId', 'drop':0}
, {'tab':'Hands', 'col':'gametypeId', 'drop':0} # mct 22/3/09
#, {'tab':'Hands', 'col':'siteHandNo', 'drop':0} unique indexes not dropped
, {'tab':'HandsActions', 'col':'handsPlayerId', 'drop':0}
, {'tab':'HandsPlayers', 'col':'handId', 'drop':1}
, {'tab':'HandsPlayers', 'col':'playerId', 'drop':1}
, {'tab':'HandsPlayers', 'col':'tourneysPlayersId', 'drop':0}
, {'tab':'HudCache', 'col':'gametypeId', 'drop':1}
, {'tab':'HudCache', 'col':'playerId', 'drop':0}
, {'tab':'HudCache', 'col':'tourneyTypeId', 'drop':0}
, {'tab':'Players', 'col':'siteId', 'drop':1}
#, {'tab':'Players', 'col':'name', 'drop':0} unique indexes not dropped
, {'tab':'Tourneys', 'col':'tourneyTypeId', 'drop':1}
#, {'tab':'Tourneys', 'col':'siteTourneyNo', 'drop':0} unique indexes not dropped
, {'tab':'TourneysPlayers', 'col':'playerId', 'drop':0}
#, {'tab':'TourneysPlayers', 'col':'tourneyId', 'drop':0} unique indexes not dropped
, {'tab':'TourneyTypes', 'col':'siteId', 'drop':0}
]
, [ # indexes for sqlite (list index 4)
# {'tab':'Players', 'col':'name', 'drop':0} unique indexes not dropped
# {'tab':'Hands', 'col':'siteHandNo', 'drop':0} unique indexes not dropped
{'tab':'Hands', 'col':'gametypeId', 'drop':0}
, {'tab':'HandsPlayers', 'col':'handId', 'drop':0}
, {'tab':'HandsPlayers', 'col':'playerId', 'drop':0}
, {'tab':'HandsPlayers', 'col':'tourneyTypeId', 'drop':0}
, {'tab':'HandsPlayers', 'col':'tourneysPlayersId', 'drop':0}
#, {'tab':'Tourneys', 'col':'siteTourneyNo', 'drop':0} unique indexes not dropped
]
]
foreignKeys = [
[ ] # no db with index 0
, [ ] # no db with index 1
, [ # foreign keys for mysql (index 2)
{'fktab':'Hands', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
, {'fktab':'HandsPlayers', 'fkcol':'handId', 'rtab':'Hands', 'rcol':'id', 'drop':1}
, {'fktab':'HandsPlayers', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':1}
, {'fktab':'HandsPlayers', 'fkcol':'tourneyTypeId', 'rtab':'TourneyTypes', 'rcol':'id', 'drop':1}
, {'fktab':'HandsPlayers', 'fkcol':'tourneysPlayersId','rtab':'TourneysPlayers','rcol':'id', 'drop':1}
, {'fktab':'HandsActions', 'fkcol':'handsPlayerId', 'rtab':'HandsPlayers', 'rcol':'id', 'drop':1}
, {'fktab':'HudCache', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
, {'fktab':'HudCache', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':0}
, {'fktab':'HudCache', 'fkcol':'tourneyTypeId', 'rtab':'TourneyTypes', 'rcol':'id', 'drop':1}
]
, [ # foreign keys for postgres (index 3)
{'fktab':'Hands', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
, {'fktab':'HandsPlayers', 'fkcol':'handId', 'rtab':'Hands', 'rcol':'id', 'drop':1}
, {'fktab':'HandsPlayers', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':1}
, {'fktab':'HandsActions', 'fkcol':'handsPlayerId', 'rtab':'HandsPlayers', 'rcol':'id', 'drop':1}
, {'fktab':'HudCache', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
, {'fktab':'HudCache', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':0}
, {'fktab':'HudCache', 'fkcol':'tourneyTypeId', 'rtab':'TourneyTypes', 'rcol':'id', 'drop':1}
]
, [ # no foreign keys in sqlite (index 4)
]
]
# MySQL Notes:
# "FOREIGN KEY (handId) REFERENCES Hands(id)" - requires index on Hands.id
# - creates index handId on <thistable>.handId
# alter table t drop foreign key fk
# alter table t add foreign key (fkcol) references tab(rcol)
# alter table t add constraint c foreign key (fkcol) references tab(rcol)
# (fkcol is used for foreigh key name)
# mysql to list indexes:
# SELECT table_name, index_name, non_unique, column_name
# FROM INFORMATION_SCHEMA.STATISTICS
# WHERE table_name = 'tbl_name'
# AND table_schema = 'db_name'
# ORDER BY table_name, index_name, seq_in_index
#
# ALTER TABLE Tourneys ADD INDEX siteTourneyNo(siteTourneyNo)
# ALTER TABLE tab DROP INDEX idx
# mysql to list fks:
# SELECT constraint_name, table_name, column_name, referenced_table_name, referenced_column_name
# FROM information_schema.KEY_COLUMN_USAGE
# WHERE REFERENCED_TABLE_SCHEMA = (your schema name here)
# AND REFERENCED_TABLE_NAME is not null
# ORDER BY TABLE_NAME, COLUMN_NAME;
# this may indicate missing object
# _mysql_exceptions.OperationalError: (1025, "Error on rename of '.\\fpdb\\hands' to '.\\fpdb\\#sql2-7f0-1b' (errno: 152)")
# PG notes:
# To add a foreign key constraint to a table:
# ALTER TABLE tab ADD CONSTRAINT c FOREIGN KEY (col) REFERENCES t2(col2) MATCH FULL;
# ALTER TABLE tab DROP CONSTRAINT zipchk
#
# Note: index names must be unique across a schema
# CREATE INDEX idx ON tab(col)
# DROP INDEX idx
# SQLite notes:
# To add an index:
# create index indexname on tablename (col);
def __init__(self, c, sql = None):
log.info("Creating Database instance, sql = %s" % sql)
self.config = c
self.__connected = False
self.fdb = fpdb_db.fpdb_db() # sets self.fdb.db self.fdb.cursor and self.fdb.sql
self.do_connect(c)
if self.backend == self.PGSQL:
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT, ISOLATION_LEVEL_READ_COMMITTED, ISOLATION_LEVEL_SERIALIZABLE
#ISOLATION_LEVEL_AUTOCOMMIT = 0
#ISOLATION_LEVEL_READ_COMMITTED = 1
#ISOLATION_LEVEL_SERIALIZABLE = 2
# where possible avoid creating new SQL instance by using the global one passed in
if sql is None:
self.sql = SQL.Sql(db_server = self.db_server)
else:
self.sql = sql
if self.backend == self.SQLITE and self.database == ':memory:' and self.wrongDbVersion:
log.info("sqlite/:memory: - creating")
self.recreate_tables()
self.wrongDbVersion = False
self.pcache = None # PlayerId cache
self.cachemiss = 0 # Delete me later - using to count player cache misses
self.cachehit = 0 # Delete me later - using to count player cache hits
# config while trying out new hudcache mechanism
self.use_date_in_hudcache = True
#self.hud_hero_style = 'T' # Duplicate set of vars just for hero - not used yet.
#self.hud_hero_hands = 2000 # Idea is that you might want all-time stats for others
#self.hud_hero_days = 30 # but last T days or last H hands for yourself
# vars for hand ids or dates fetched according to above config:
self.hand_1day_ago = 0 # max hand id more than 24 hrs earlier than now
self.date_ndays_ago = 'd000000' # date N days ago ('d' + YYMMDD)
self.h_date_ndays_ago = 'd000000' # date N days ago ('d' + YYMMDD) for hero
self.date_nhands_ago = {} # dates N hands ago per player - not used yet
self.cursor = self.fdb.cursor
self.saveActions = False if self.import_options['saveActions'] == False else True
self.connection.rollback() # make sure any locks taken so far are released
#end def __init__
# could be used by hud to change hud style
def set_hud_style(self, style):
self.hud_style = style
def do_connect(self, c):
try:
self.fdb.do_connect(c)
except:
# error during connect
self.__connected = False
raise
self.connection = self.fdb.db
self.wrongDbVersion = self.fdb.wrongDbVersion
db_params = c.get_db_parameters()
self.import_options = c.get_import_parameters()
self.backend = db_params['db-backend']
self.db_server = db_params['db-server']
self.database = db_params['db-databaseName']
self.host = db_params['db-host']
self.__connected = True
def commit(self):
self.fdb.db.commit()
def rollback(self):
self.fdb.db.rollback()
def connected(self):
return self.__connected
def get_cursor(self):
return self.connection.cursor()
def close_connection(self):
self.connection.close()
def disconnect(self, due_to_error=False):
"""Disconnects the DB (rolls back if param is true, otherwise commits"""
self.fdb.disconnect(due_to_error)
def reconnect(self, due_to_error=False):
"""Reconnects the DB"""
self.fdb.reconnect(due_to_error=False)
def get_backend_name(self):
"""Returns the name of the currently used backend"""
if self.backend==2:
return "MySQL InnoDB"
elif self.backend==3:
return "PostgreSQL"
elif self.backend==4:
return "SQLite"
else:
raise FpdbError("invalid backend")
def get_table_name(self, hand_id):
c = self.connection.cursor()
c.execute(self.sql.query['get_table_name'], (hand_id, ))
row = c.fetchone()
return row
def get_table_info(self, hand_id):
c = self.connection.cursor()
c.execute(self.sql.query['get_table_name'], (hand_id, ))
row = c.fetchone()
l = list(row)
if row[3] == "ring": # cash game
l.append(None)
l.append(None)
return l
else: # tournament
tour_no, tab_no = re.split(" ", row[0])
l.append(tour_no)
l.append(tab_no)
return l
def get_last_hand(self):
c = self.connection.cursor()
c.execute(self.sql.query['get_last_hand'])
row = c.fetchone()
return row[0]
def get_xml(self, hand_id):
c = self.connection.cursor()
c.execute(self.sql.query['get_xml'], (hand_id))
row = c.fetchone()
return row[0]
def get_recent_hands(self, last_hand):
c = self.connection.cursor()
c.execute(self.sql.query['get_recent_hands'], {'last_hand': last_hand})
return c.fetchall()
def get_hand_info(self, new_hand_id):
c = self.connection.cursor()
c.execute(self.sql.query['get_hand_info'], new_hand_id)
return c.fetchall()
def get_actual_seat(self, hand_id, name):
c = self.connection.cursor()
c.execute(self.sql.query['get_actual_seat'], (hand_id, name))
row = c.fetchone()
return row[0]
def get_cards(self, hand):
"""Get and return the cards for each player in the hand."""
cards = {} # dict of cards, the key is the seat number,
# the value is a tuple of the players cards
# example: {1: (0, 0, 20, 21, 22, 0 , 0)}
c = self.connection.cursor()
c.execute(self.sql.query['get_cards'], [hand])
for row in c.fetchall():
cards[row[0]] = row[1:]
return cards
def get_common_cards(self, hand):
"""Get and return the community cards for the specified hand."""
cards = {}
c = self.connection.cursor()
c.execute(self.sql.query['get_common_cards'], [hand])
# row = c.fetchone()
cards['common'] = c.fetchone()
return cards
def get_action_from_hand(self, hand_no):
action = [ [], [], [], [], [] ]
c = self.connection.cursor()
c.execute(self.sql.query['get_action_from_hand'], (hand_no,))
for row in c.fetchall():
street = row[0]
act = row[1:]
action[street].append(act)
return action
def get_winners_from_hand(self, hand):
"""Returns a hash of winners:amount won, given a hand number."""
winners = {}
c = self.connection.cursor()
c.execute(self.sql.query['get_winners_from_hand'], (hand,))
for row in c.fetchall():
winners[row[0]] = row[1]
return winners
def init_hud_stat_vars(self, hud_days, h_hud_days):
"""Initialise variables used by Hud to fetch stats:
self.hand_1day_ago handId of latest hand played more than a day ago
self.date_ndays_ago date n days ago
self.h_date_ndays_ago date n days ago for hero (different n)
"""
self.hand_1day_ago = 1
try:
c = self.get_cursor()
c.execute(self.sql.query['get_hand_1day_ago'])
row = c.fetchone()
except: # TODO: what error is a database error?!
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "*** Database Error: " + err[2] + "(" + str(err[1]) + "): " + str(sys.exc_info()[1])
else:
if row and row[0]:
self.hand_1day_ago = int(row[0])
d = timedelta(days=hud_days)
now = datetime.utcnow() - d
self.date_ndays_ago = "d%02d%02d%02d" % (now.year - 2000, now.month, now.day)
d = timedelta(days=h_hud_days)
now = datetime.utcnow() - d
self.h_date_ndays_ago = "d%02d%02d%02d" % (now.year - 2000, now.month, now.day)
def init_player_hud_stat_vars(self, playerid):
# not sure if this is workable, to be continued ...
try:
# self.date_nhands_ago is used for fetching stats for last n hands (hud_style = 'H')
# This option not used yet - needs to be called for each player :-(
self.date_nhands_ago[str(playerid)] = 'd000000'
# should use aggregated version of query if appropriate
c.execute(self.sql.query['get_date_nhands_ago'], (self.hud_hands, playerid))
row = c.fetchone()
if row and row[0]:
self.date_nhands_ago[str(playerid)] = row[0]
c.close()
print "Database: date n hands ago = " + self.date_nhands_ago[str(playerid)] + "(playerid "+str(playerid)+")"
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "*** Database Error: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
# is get_stats_from_hand slow?
def get_stats_from_hand( self, hand, type # type is "ring" or "tour"
, hud_params = {'hud_style':'A', 'agg_bb_mult':1000
,'seats_style':'A', 'seats_cust_nums':['n/a', 'n/a', (2,2), (3,4), (3,5), (4,6), (5,7), (6,8), (7,9), (8,10), (8,10)]
,'h_hud_style':'S', 'h_agg_bb_mult':1000
,'h_seats_style':'A', 'h_seats_cust_nums':['n/a', 'n/a', (2,2), (3,4), (3,5), (4,6), (5,7), (6,8), (7,9), (8,10), (8,10)]
}
, hero_id = -1
, num_seats = 6
):
hud_style = hud_params['hud_style']
agg_bb_mult = hud_params['agg_bb_mult']
seats_style = hud_params['seats_style']
seats_cust_nums = hud_params['seats_cust_nums']
h_hud_style = hud_params['h_hud_style']
h_agg_bb_mult = hud_params['h_agg_bb_mult']
h_seats_style = hud_params['h_seats_style']
h_seats_cust_nums = hud_params['h_seats_cust_nums']
stat_dict = {}
if seats_style == 'A':
seats_min, seats_max = 0, 10
elif seats_style == 'C':
seats_min, seats_max = seats_cust_nums[num_seats][0], seats_cust_nums[num_seats][1]
elif seats_style == 'E':
seats_min, seats_max = num_seats, num_seats
else:
seats_min, seats_max = 0, 10
print "bad seats_style value:", seats_style
if h_seats_style == 'A':
h_seats_min, h_seats_max = 0, 10
elif h_seats_style == 'C':
h_seats_min, h_seats_max = h_seats_cust_nums[num_seats][0], h_seats_cust_nums[num_seats][1]
elif h_seats_style == 'E':
h_seats_min, h_seats_max = num_seats, num_seats
else:
h_seats_min, h_seats_max = 0, 10
print "bad h_seats_style value:", h_seats_style
log.info("opp seats style %s %d %d hero seats style %s %d %d"
% (seats_style, seats_min, seats_max
,h_seats_style, h_seats_min, h_seats_max) )
if hud_style == 'S' or h_hud_style == 'S':
self.get_stats_from_hand_session(hand, stat_dict, hero_id
,hud_style, seats_min, seats_max
,h_hud_style, h_seats_min, h_seats_max)
if hud_style == 'S' and h_hud_style == 'S':
return stat_dict
if hud_style == 'T':
stylekey = self.date_ndays_ago
elif hud_style == 'A':
stylekey = '0000000' # all stylekey values should be higher than this
elif hud_style == 'S':
stylekey = 'zzzzzzz' # all stylekey values should be lower than this
else:
stylekey = '0000000'
log.info('hud_style: %s' % hud_style)
#elif hud_style == 'H':
# stylekey = date_nhands_ago needs array by player here ...
if h_hud_style == 'T':
h_stylekey = self.h_date_ndays_ago
elif h_hud_style == 'A':
h_stylekey = '0000000' # all stylekey values should be higher than this
elif h_hud_style == 'S':
h_stylekey = 'zzzzzzz' # all stylekey values should be lower than this
else:
h_stylekey = '000000'
log.info('h_hud_style: %s' % h_hud_style)
#elif h_hud_style == 'H':
# h_stylekey = date_nhands_ago needs array by player here ...
query = 'get_stats_from_hand_aggregated'
subs = (hand
,hero_id, stylekey, agg_bb_mult, agg_bb_mult, seats_min, seats_max # hero params
,hero_id, h_stylekey, h_agg_bb_mult, h_agg_bb_mult, h_seats_min, h_seats_max) # villain params
#print "get stats: hud style =", hud_style, "query =", query, "subs =", subs
c = self.connection.cursor()
# now get the stats
c.execute(self.sql.query[query], subs)
colnames = [desc[0] for desc in c.description]
for row in c.fetchall():
playerid = row[0]
if (playerid == hero_id and h_hud_style != 'S') or (playerid != hero_id and hud_style != 'S'):
t_dict = {}
for name, val in zip(colnames, row):
t_dict[name.lower()] = val
# print t_dict
stat_dict[t_dict['player_id']] = t_dict
return stat_dict
# uses query on handsplayers instead of hudcache to get stats on just this session
def get_stats_from_hand_session(self, hand, stat_dict, hero_id
,hud_style, seats_min, seats_max
,h_hud_style, h_seats_min, h_seats_max):
"""Get stats for just this session (currently defined as any play in the last 24 hours - to
be improved at some point ...)
h_hud_style and hud_style params indicate whether to get stats for hero and/or others
- only fetch heros stats if h_hud_style == 'S',
and only fetch others stats if hud_style == 'S'
seats_min/max params give seats limits, only include stats if between these values
"""
query = self.sql.query['get_stats_from_hand_session']
if self.db_server == 'mysql':
query = query.replace("<signed>", 'signed ')
else:
query = query.replace("<signed>", '')
subs = (self.hand_1day_ago, hand, hero_id, seats_min, seats_max
, hero_id, h_seats_min, h_seats_max)
c = self.get_cursor()
# now get the stats
#print "sess_stats: subs =", subs, "subs[0] =", subs[0]
c.execute(query, subs)
colnames = [desc[0] for desc in c.description]
n = 0
row = c.fetchone()
if colnames[0].lower() == 'player_id':
# Loop through stats adding them to appropriate stat_dict:
while row:
playerid = row[0]
seats = row[1]
if (playerid == hero_id and h_hud_style == 'S') or (playerid != hero_id and hud_style == 'S'):
for name, val in zip(colnames, row):
if not playerid in stat_dict:
stat_dict[playerid] = {}
stat_dict[playerid][name.lower()] = val
elif not name.lower() in stat_dict[playerid]:
stat_dict[playerid][name.lower()] = val
elif name.lower() not in ('hand_id', 'player_id', 'seat', 'screen_name', 'seats'):
#print "DEBUG: stat_dict[%s][%s]: %s" %(playerid, name.lower(), val)
stat_dict[playerid][name.lower()] += val
n += 1
if n >= 10000: break # todo: don't think this is needed so set nice and high
# prevents infinite loop so leave for now - comment out or remove?
row = c.fetchone()
else:
log.error("ERROR: query %s result does not have player_id as first column" % (query,))
#print " %d rows fetched, len(stat_dict) = %d" % (n, len(stat_dict))
#print "session stat_dict =", stat_dict
#return stat_dict
def get_player_id(self, config, site, player_name):
c = self.connection.cursor()
p_name = Charset.to_utf8(player_name)
c.execute(self.sql.query['get_player_id'], (p_name, site))
row = c.fetchone()
if row:
return row[0]
else:
return None
def get_player_names(self, config, site_id=None, like_player_name="%"):
"""Fetch player names from players. Use site_id and like_player_name if provided"""
if site_id is None:
site_id = -1
c = self.get_cursor()
p_name = Charset.to_utf8(like_player_name)
c.execute(self.sql.query['get_player_names'], (p_name, site_id, site_id))
rows = c.fetchall()
return rows
def get_site_id(self, site):
c = self.get_cursor()
c.execute(self.sql.query['getSiteId'], (site,))
result = c.fetchall()
return result
def get_last_insert_id(self, cursor=None):
ret = None
try:
if self.backend == self.MYSQL_INNODB:
ret = self.connection.insert_id()
if ret < 1 or ret > 999999999:
log.warning("getLastInsertId(): problem fetching insert_id? ret=%d" % ret)
ret = -1
elif self.backend == self.PGSQL:
# some options:
# currval(hands_id_seq) - use name of implicit seq here
# lastval() - still needs sequences set up?
# insert ... returning is useful syntax (but postgres specific?)
# see rules (fancy trigger type things)
c = self.get_cursor()
ret = c.execute ("SELECT lastval()")
row = c.fetchone()
if not row:
log.warning("getLastInsertId(%s): problem fetching lastval? row=%d" % (seq, row))
ret = -1
else:
ret = row[0]
elif self.backend == self.SQLITE:
ret = cursor.lastrowid
else:
log.error("getLastInsertId(): unknown backend: %d" % self.backend)
ret = -1
except:
ret = -1
err = traceback.extract_tb(sys.exc_info()[2])
print "*** Database get_last_insert_id error: " + str(sys.exc_info()[1])
print "\n".join( [e[0]+':'+str(e[1])+" "+e[2] for e in err] )
raise
return ret
def prepareBulkImport(self):
"""Drop some indexes/foreign keys to prepare for bulk import.
Currently keeping the standalone indexes as needed to import quickly"""
stime = time()
c = self.get_cursor()
# sc: don't think autocommit=0 is needed, should already be in that mode
if self.backend == self.MYSQL_INNODB:
c.execute("SET foreign_key_checks=0")
c.execute("SET autocommit=0")
return
if self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow table/index operations to work
for fk in self.foreignKeys[self.backend]:
if fk['drop'] == 1:
if self.backend == self.MYSQL_INNODB:
c.execute("SELECT constraint_name " +
"FROM information_schema.KEY_COLUMN_USAGE " +
#"WHERE REFERENCED_TABLE_SCHEMA = 'fpdb'
"WHERE 1=1 " +
"AND table_name = %s AND column_name = %s " +
"AND referenced_table_name = %s " +
"AND referenced_column_name = %s ",
(fk['fktab'], fk['fkcol'], fk['rtab'], fk['rcol']) )
cons = c.fetchone()
#print "preparebulk find fk: cons=", cons
if cons:
print "dropping mysql fk", cons[0], fk['fktab'], fk['fkcol']
try:
c.execute("alter table " + fk['fktab'] + " drop foreign key " + cons[0])
except:
print " drop failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
# DON'T FORGET TO RECREATE THEM!!
print "dropping pg fk", fk['fktab'], fk['fkcol']
try:
# try to lock table to see if index drop will work:
# hmmm, tested by commenting out rollback in grapher. lock seems to work but
# then drop still hangs :-( does work in some tests though??
# will leave code here for now pending further tests/enhancement ...
c.execute( "lock table %s in exclusive mode nowait" % (fk['fktab'],) )
#print "after lock, status:", c.statusmessage
#print "alter table %s drop constraint %s_%s_fkey" % (fk['fktab'], fk['fktab'], fk['fkcol'])
try:
c.execute("alter table %s drop constraint %s_%s_fkey" % (fk['fktab'], fk['fktab'], fk['fkcol']))
print "dropped pg fk pg fk %s_%s_fkey, continuing ..." % (fk['fktab'], fk['fkcol'])
except:
if "does not exist" not in str(sys.exc_value):
print "warning: drop pg fk %s_%s_fkey failed: %s, continuing ..." \
% (fk['fktab'], fk['fkcol'], str(sys.exc_value).rstrip('\n') )
except:
print "warning: constraint %s_%s_fkey not dropped: %s, continuing ..." \
% (fk['fktab'],fk['fkcol'], str(sys.exc_value).rstrip('\n'))
else:
print "Only MySQL and Postgres supported so far"
return -1
for idx in self.indexes[self.backend]:
if idx['drop'] == 1:
if self.backend == self.MYSQL_INNODB:
print "dropping mysql index ", idx['tab'], idx['col']
try:
# apparently nowait is not implemented in mysql so this just hangs if there are locks
# preventing the index drop :-(
c.execute( "alter table %s drop index %s;", (idx['tab'],idx['col']) )
except:
print " drop index failed: " + str(sys.exc_info())
# ALTER TABLE `fpdb`.`handsplayers` DROP INDEX `playerId`;
# using: 'HandsPlayers' drop index 'playerId'
elif self.backend == self.PGSQL:
# DON'T FORGET TO RECREATE THEM!!
print "dropping pg index ", idx['tab'], idx['col']
try:
# try to lock table to see if index drop will work:
c.execute( "lock table %s in exclusive mode nowait" % (idx['tab'],) )
#print "after lock, status:", c.statusmessage
try:
# table locked ok so index drop should work:
#print "drop index %s_%s_idx" % (idx['tab'],idx['col'])
c.execute( "drop index if exists %s_%s_idx" % (idx['tab'],idx['col']) )
#print "dropped pg index ", idx['tab'], idx['col']
except:
if "does not exist" not in str(sys.exc_value):
print "warning: drop index %s_%s_idx failed: %s, continuing ..." \
% (idx['tab'],idx['col'], str(sys.exc_value).rstrip('\n'))
except:
print "warning: index %s_%s_idx not dropped %s, continuing ..." \
% (idx['tab'],idx['col'], str(sys.exc_value).rstrip('\n'))
else:
print "Error: Only MySQL and Postgres supported so far"
return -1
if self.backend == self.PGSQL:
self.connection.set_isolation_level(1) # go back to normal isolation level
self.commit() # seems to clear up errors if there were any in postgres
ptime = time() - stime
print "prepare import took", ptime, "seconds"
#end def prepareBulkImport
def afterBulkImport(self):
"""Re-create any dropped indexes/foreign keys after bulk import"""
stime = time()
c = self.get_cursor()
if self.backend == self.MYSQL_INNODB:
c.execute("SET foreign_key_checks=1")
c.execute("SET autocommit=1")
return
if self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow table/index operations to work
for fk in self.foreignKeys[self.backend]:
if fk['drop'] == 1:
if self.backend == self.MYSQL_INNODB:
c.execute("SELECT constraint_name " +
"FROM information_schema.KEY_COLUMN_USAGE " +
#"WHERE REFERENCED_TABLE_SCHEMA = 'fpdb'
"WHERE 1=1 " +
"AND table_name = %s AND column_name = %s " +
"AND referenced_table_name = %s " +
"AND referenced_column_name = %s ",
(fk['fktab'], fk['fkcol'], fk['rtab'], fk['rcol']) )
cons = c.fetchone()
#print "afterbulk: cons=", cons
if cons:
pass
else:
print "creating fk ", fk['fktab'], fk['fkcol'], "->", fk['rtab'], fk['rcol']
try:
c.execute("alter table " + fk['fktab'] + " add foreign key ("
+ fk['fkcol'] + ") references " + fk['rtab'] + "("
+ fk['rcol'] + ")")
except:
print " create fk failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
print "creating fk ", fk['fktab'], fk['fkcol'], "->", fk['rtab'], fk['rcol']
try:
c.execute("alter table " + fk['fktab'] + " add constraint "
+ fk['fktab'] + '_' + fk['fkcol'] + '_fkey'
+ " foreign key (" + fk['fkcol']
+ ") references " + fk['rtab'] + "(" + fk['rcol'] + ")")
except:
print " create fk failed: " + str(sys.exc_info())
else:
print "Only MySQL and Postgres supported so far"
return -1
for idx in self.indexes[self.backend]:
if idx['drop'] == 1:
if self.backend == self.MYSQL_INNODB:
print "creating mysql index ", idx['tab'], idx['col']
try:
s = "alter table %s add index %s(%s)" % (idx['tab'],idx['col'],idx['col'])
c.execute(s)
except:
print " create fk failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
# pass
# mod to use tab_col for index name?
print "creating pg index ", idx['tab'], idx['col']
try:
s = "create index %s_%s_idx on %s(%s)" % (idx['tab'], idx['col'], idx['tab'], idx['col'])
c.execute(s)
except:
print " create index failed: " + str(sys.exc_info())
else:
print "Only MySQL and Postgres supported so far"
return -1
if self.backend == self.PGSQL:
self.connection.set_isolation_level(1) # go back to normal isolation level
self.commit() # seems to clear up errors if there were any in postgres
atime = time() - stime
print "After import took", atime, "seconds"
#end def afterBulkImport
def drop_referential_integrity(self):
"""Update all tables to remove foreign keys"""
c = self.get_cursor()
c.execute(self.sql.query['list_tables'])
result = c.fetchall()
for i in range(len(result)):
c.execute("SHOW CREATE TABLE " + result[i][0])
inner = c.fetchall()
for j in range(len(inner)):
# result[i][0] - Table name
# result[i][1] - CREATE TABLE parameters
#Searching for CONSTRAINT `tablename_ibfk_1`
for m in re.finditer('(ibfk_[0-9]+)', inner[j][1]):
key = "`" + inner[j][0] + "_" + m.group() + "`"
c.execute("ALTER TABLE " + inner[j][0] + " DROP FOREIGN KEY " + key)
self.commit()
#end drop_referential_inegrity
def recreate_tables(self):
"""(Re-)creates the tables of the current DB"""
self.drop_tables()
self.create_tables()
self.createAllIndexes()
self.commit()
log.info("Finished recreating tables")
#end def recreate_tables
def create_tables(self):
#todo: should detect and fail gracefully if tables already exist.
try:
log.debug(self.sql.query['createSettingsTable'])
c = self.get_cursor()
c.execute(self.sql.query['createSettingsTable'])
log.debug(self.sql.query['createSitesTable'])
c.execute(self.sql.query['createSitesTable'])
c.execute(self.sql.query['createGametypesTable'])
c.execute(self.sql.query['createPlayersTable'])
c.execute(self.sql.query['createAutoratesTable'])
c.execute(self.sql.query['createHandsTable'])
c.execute(self.sql.query['createTourneyTypesTable'])
c.execute(self.sql.query['createTourneysTable'])
c.execute(self.sql.query['createTourneysPlayersTable'])
c.execute(self.sql.query['createHandsPlayersTable'])
c.execute(self.sql.query['createHandsActionsTable'])
c.execute(self.sql.query['createHudCacheTable'])
# create unique indexes:
c.execute(self.sql.query['addTourneyIndex'])
c.execute(self.sql.query['addHandsIndex'])
c.execute(self.sql.query['addPlayersIndex'])
c.execute(self.sql.query['addTPlayersIndex'])
c.execute(self.sql.query['addTTypesIndex'])
self.fillDefaultData()
self.commit()
except:
#print "Error creating tables: ", str(sys.exc_value)
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error creating tables: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
self.rollback()
raise
#end def disconnect
def drop_tables(self):
"""Drops the fpdb tables from the current db"""
try:
c = self.get_cursor()
except:
print "*** Error unable to get cursor"
else:
backend = self.get_backend_name()
if backend == 'MySQL InnoDB': # what happens if someone is using MyISAM?
try:
self.drop_referential_integrity() # needed to drop tables with foreign keys
c.execute(self.sql.query['list_tables'])
tables = c.fetchall()
for table in tables:
c.execute(self.sql.query['drop_table'] + table[0])
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error dropping tables: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
self.rollback()
elif backend == 'PostgreSQL':
try:
self.commit()
c.execute(self.sql.query['list_tables'])
tables = c.fetchall()
for table in tables:
c.execute(self.sql.query['drop_table'] + table[0] + ' cascade')
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error dropping tables: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
self.rollback()
elif backend == 'SQLite':
try:
c.execute(self.sql.query['list_tables'])
for table in c.fetchall():
log.debug(self.sql.query['drop_table'] + table[0])
c.execute(self.sql.query['drop_table'] + table[0])
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error dropping tables: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
self.rollback()
try:
self.commit()
except:
print "*** Error in committing table drop"
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error dropping tables: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
self.rollback()
#end def drop_tables
def createAllIndexes(self):
"""Create new indexes"""
try:
if self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow table/index operations to work
for idx in self.indexes[self.backend]:
if self.backend == self.MYSQL_INNODB:
print "creating mysql index ", idx['tab'], idx['col']
try:
s = "create index %s on %s(%s)" % (idx['col'],idx['tab'],idx['col'])
self.get_cursor().execute(s)
except:
print " create idx failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
# mod to use tab_col for index name?
print "creating pg index ", idx['tab'], idx['col']
try:
s = "create index %s_%s_idx on %s(%s)" % (idx['tab'], idx['col'], idx['tab'], idx['col'])
self.get_cursor().execute(s)
except:
print " create idx failed: " + str(sys.exc_info())
elif self.backend == self.SQLITE:
log.debug("Creating sqlite index %s %s" % (idx['tab'], idx['col']))
try:
s = "create index %s_%s_idx on %s(%s)" % (idx['tab'], idx['col'], idx['tab'], idx['col'])
self.get_cursor().execute(s)
except:
log.debug("Create idx failed: " + str(sys.exc_info()))
else:
print "Only MySQL, Postgres and SQLite supported so far"
return -1
if self.backend == self.PGSQL:
self.connection.set_isolation_level(1) # go back to normal isolation level
except:
print "Error creating indexes: " + str(sys.exc_value)
raise FpdbError( "Error creating indexes " + str(sys.exc_value) )
#end def createAllIndexes
def dropAllIndexes(self):
"""Drop all standalone indexes (i.e. not including primary keys or foreign keys)
using list of indexes in indexes data structure"""
# maybe upgrade to use data dictionary?? (but take care to exclude PK and FK)
if self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow table/index operations to work
for idx in self.indexes[self.backend]:
if self.backend == self.MYSQL_INNODB:
print "dropping mysql index ", idx['tab'], idx['col']
try:
self.get_cursor().execute( "alter table %s drop index %s"
, (idx['tab'], idx['col']) )
except:
print " drop idx failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
print "dropping pg index ", idx['tab'], idx['col']
# mod to use tab_col for index name?
try:
self.get_cursor().execute( "drop index %s_%s_idx"
% (idx['tab'],idx['col']) )
except:
print " drop idx failed: " + str(sys.exc_info())
else:
print "Only MySQL and Postgres supported so far"
return -1
if self.backend == self.PGSQL:
self.connection.set_isolation_level(1) # go back to normal isolation level
#end def dropAllIndexes
def createAllForeignKeys(self):
"""Create foreign keys"""
try:
if self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow table/index operations to work
c = self.get_cursor()
except:
print " set_isolation_level failed: " + str(sys.exc_info())
for fk in self.foreignKeys[self.backend]:
if self.backend == self.MYSQL_INNODB:
c.execute("SELECT constraint_name " +
"FROM information_schema.KEY_COLUMN_USAGE " +
#"WHERE REFERENCED_TABLE_SCHEMA = 'fpdb'
"WHERE 1=1 " +
"AND table_name = %s AND column_name = %s " +
"AND referenced_table_name = %s " +
"AND referenced_column_name = %s ",
(fk['fktab'], fk['fkcol'], fk['rtab'], fk['rcol']) )
cons = c.fetchone()
#print "afterbulk: cons=", cons
if cons:
pass
else:
print "creating fk ", fk['fktab'], fk['fkcol'], "->", fk['rtab'], fk['rcol']
try:
c.execute("alter table " + fk['fktab'] + " add foreign key ("
+ fk['fkcol'] + ") references " + fk['rtab'] + "("
+ fk['rcol'] + ")")
except:
print " create fk failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
print "creating fk ", fk['fktab'], fk['fkcol'], "->", fk['rtab'], fk['rcol']
try:
c.execute("alter table " + fk['fktab'] + " add constraint "
+ fk['fktab'] + '_' + fk['fkcol'] + '_fkey'
+ " foreign key (" + fk['fkcol']
+ ") references " + fk['rtab'] + "(" + fk['rcol'] + ")")
except:
print " create fk failed: " + str(sys.exc_info())
else:
print "Only MySQL and Postgres supported so far"
try:
if self.backend == self.PGSQL:
self.connection.set_isolation_level(1) # go back to normal isolation level
except:
print " set_isolation_level failed: " + str(sys.exc_info())
#end def createAllForeignKeys
def dropAllForeignKeys(self):
"""Drop all standalone indexes (i.e. not including primary keys or foreign keys)
using list of indexes in indexes data structure"""
# maybe upgrade to use data dictionary?? (but take care to exclude PK and FK)
if self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow table/index operations to work
c = self.get_cursor()
for fk in self.foreignKeys[self.backend]:
if self.backend == self.MYSQL_INNODB:
c.execute("SELECT constraint_name " +
"FROM information_schema.KEY_COLUMN_USAGE " +
#"WHERE REFERENCED_TABLE_SCHEMA = 'fpdb'
"WHERE 1=1 " +
"AND table_name = %s AND column_name = %s " +
"AND referenced_table_name = %s " +
"AND referenced_column_name = %s ",
(fk['fktab'], fk['fkcol'], fk['rtab'], fk['rcol']) )
cons = c.fetchone()
#print "preparebulk find fk: cons=", cons
if cons:
print "dropping mysql fk", cons[0], fk['fktab'], fk['fkcol']
try:
c.execute("alter table " + fk['fktab'] + " drop foreign key " + cons[0])
except:
print " drop failed: " + str(sys.exc_info())
elif self.backend == self.PGSQL:
# DON'T FORGET TO RECREATE THEM!!
print "dropping pg fk", fk['fktab'], fk['fkcol']
try:
# try to lock table to see if index drop will work:
# hmmm, tested by commenting out rollback in grapher. lock seems to work but
# then drop still hangs :-( does work in some tests though??
# will leave code here for now pending further tests/enhancement ...
c.execute( "lock table %s in exclusive mode nowait" % (fk['fktab'],) )
#print "after lock, status:", c.statusmessage
#print "alter table %s drop constraint %s_%s_fkey" % (fk['fktab'], fk['fktab'], fk['fkcol'])
try:
c.execute("alter table %s drop constraint %s_%s_fkey" % (fk['fktab'], fk['fktab'], fk['fkcol']))
print "dropped pg fk pg fk %s_%s_fkey, continuing ..." % (fk['fktab'], fk['fkcol'])
except:
if "does not exist" not in str(sys.exc_value):
print "warning: drop pg fk %s_%s_fkey failed: %s, continuing ..." \
% (fk['fktab'], fk['fkcol'], str(sys.exc_value).rstrip('\n') )
except:
print "warning: constraint %s_%s_fkey not dropped: %s, continuing ..." \
% (fk['fktab'],fk['fkcol'], str(sys.exc_value).rstrip('\n'))
else:
print "Only MySQL and Postgres supported so far"
if self.backend == self.PGSQL:
self.connection.set_isolation_level(1) # go back to normal isolation level
#end def dropAllForeignKeys
def fillDefaultData(self):
c = self.get_cursor()
c.execute("INSERT INTO Settings (version) VALUES (118);")
c.execute("INSERT INTO Sites (name,currency) VALUES ('Full Tilt Poker', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('PokerStars', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('Everleaf', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('Win2day', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('OnGame', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('UltimateBet', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('Betfair', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('Absolute', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('PartyPoker', 'USD')")
c.execute("INSERT INTO Sites (name,currency) VALUES ('Partouche', 'EUR')")
if self.backend == self.SQLITE:
c.execute("INSERT INTO TourneyTypes (id, siteId, buyin, fee) VALUES (NULL, 1, 0, 0);")
elif self.backend == self.PGSQL:
c.execute("""insert into TourneyTypes(siteId, buyin, fee, maxSeats, knockout
,rebuyOrAddon, speed, headsUp, shootout, matrix)
values (1, 0, 0, 0, False, False, null, False, False, False);""")
elif self.backend == self.MYSQL_INNODB:
c.execute("""insert into TourneyTypes(id, siteId, buyin, fee, maxSeats, knockout
,rebuyOrAddon, speed, headsUp, shootout, matrix)
values (DEFAULT, 1, 0, 0, 0, False, False, null, False, False, False);""")
#end def fillDefaultData
def rebuild_indexes(self, start=None):
self.dropAllIndexes()
self.createAllIndexes()
self.dropAllForeignKeys()
self.createAllForeignKeys()
def rebuild_hudcache(self, h_start=None, v_start=None):
"""clears hudcache and rebuilds from the individual handsplayers records"""
try:
stime = time()
# derive list of program owner's player ids
self.hero = {} # name of program owner indexed by site id
self.hero_ids = {'dummy':-53, 'dummy2':-52} # playerid of owner indexed by site id
# make sure at least two values in list
# so that tuple generation creates doesn't use
# () or (1,) style
for site in self.config.get_supported_sites():
result = self.get_site_id(site)
if result:
site_id = result[0][0]
self.hero[site_id] = self.config.supported_sites[site].screen_name
p_id = self.get_player_id(self.config, site, self.hero[site_id])
if p_id:
self.hero_ids[site_id] = int(p_id)
if h_start is None:
h_start = self.hero_hudstart_def
if v_start is None:
v_start = self.villain_hudstart_def
if self.hero_ids == {}:
where = ""
else:
where = "where ( hp.playerId not in " + str(tuple(self.hero_ids.values())) \
+ " and h.handStart > '" + v_start + "')" \
+ " or ( hp.playerId in " + str(tuple(self.hero_ids.values())) \
+ " and h.handStart > '" + h_start + "')"
rebuild_sql = self.sql.query['rebuildHudCache'].replace('<where_clause>', where)
self.get_cursor().execute(self.sql.query['clearHudCache'])
self.get_cursor().execute(rebuild_sql)
self.commit()
print "Rebuild hudcache took %.1f seconds" % (time() - stime,)
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "Error rebuilding hudcache:", str(sys.exc_value)
print err
#end def rebuild_hudcache
def get_hero_hudcache_start(self):
"""fetches earliest stylekey from hudcache for one of hero's player ids"""
try:
# derive list of program owner's player ids
self.hero = {} # name of program owner indexed by site id
self.hero_ids = {'dummy':-53, 'dummy2':-52} # playerid of owner indexed by site id
# make sure at least two values in list
# so that tuple generation creates doesn't use
# () or (1,) style
for site in self.config.get_supported_sites():
result = self.get_site_id(site)
if result:
site_id = result[0][0]
self.hero[site_id] = self.config.supported_sites[site].screen_name
p_id = self.get_player_id(self.config, site, self.hero[site_id])
if p_id:
self.hero_ids[site_id] = int(p_id)
q = self.sql.query['get_hero_hudcache_start'].replace("<playerid_list>", str(tuple(self.hero_ids.values())))
c = self.get_cursor()
c.execute(q)
tmp = c.fetchone()
if tmp == (None,):
return self.hero_hudstart_def
else:
return "20"+tmp[0][1:3] + "-" + tmp[0][3:5] + "-" + tmp[0][5:7]
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "Error rebuilding hudcache:", str(sys.exc_value)
print err
#end def get_hero_hudcache_start
def analyzeDB(self):
"""Do whatever the DB can offer to update index/table statistics"""
stime = time()
if self.backend == self.MYSQL_INNODB:
try:
self.get_cursor().execute(self.sql.query['analyze'])
except:
print "Error during analyze:", str(sys.exc_value)
elif self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow analyze to work
try:
self.get_cursor().execute(self.sql.query['analyze'])
except:
print "Error during analyze:", str(sys.exc_value)
self.connection.set_isolation_level(1) # go back to normal isolation level
self.commit()
atime = time() - stime
print "Analyze took %.1f seconds" % (atime,)
#end def analyzeDB
def vacuumDB(self):
"""Do whatever the DB can offer to update index/table statistics"""
stime = time()
if self.backend == self.MYSQL_INNODB:
try:
self.get_cursor().execute(self.sql.query['vacuum'])
except:
print "Error during vacuum:", str(sys.exc_value)
elif self.backend == self.PGSQL:
self.connection.set_isolation_level(0) # allow vacuum to work
try:
self.get_cursor().execute(self.sql.query['vacuum'])
except:
print "Error during vacuum:", str(sys.exc_value)
self.connection.set_isolation_level(1) # go back to normal isolation level
self.commit()
atime = time() - stime
print "Vacuum took %.1f seconds" % (atime,)
#end def analyzeDB
# Start of Hand Writing routines. Idea is to provide a mixture of routines to store Hand data
# however the calling prog requires. Main aims:
# - existing static routines from fpdb_simple just modified
def lock_for_insert(self):
"""Lock tables in MySQL to try to speed inserts up"""
try:
self.get_cursor().execute(self.sql.query['lockForInsert'])
except:
print "Error during fdb.lock_for_insert:", str(sys.exc_value)
#end def lock_for_insert
###########################
# NEWIMPORT CODE
###########################
def storeHand(self, p):
#stores into table hands:
q = self.sql.query['store_hand']
q = q.replace('%s', self.sql.query['placeholder'])
c = self.get_cursor()
c.execute(q, (
p['tableName'],
p['gameTypeId'],
p['siteHandNo'],
p['handStart'],
datetime.today(), #importtime
p['seats'],
p['maxSeats'],
p['texture'],
p['playersVpi'],
p['boardcard1'],
p['boardcard2'],
p['boardcard3'],
p['boardcard4'],
p['boardcard5'],
p['playersAtStreet1'],
p['playersAtStreet2'],
p['playersAtStreet3'],
p['playersAtStreet4'],
p['playersAtShowdown'],
p['street0Raises'],
p['street1Raises'],
p['street2Raises'],
p['street3Raises'],
p['street4Raises'],
p['street1Pot'],
p['street2Pot'],
p['street3Pot'],
p['street4Pot'],
p['showdownPot']
))
return self.get_last_insert_id(c)
# def storeHand
def storeHandsPlayers(self, hid, pids, pdata):
#print "DEBUG: %s %s %s" %(hid, pids, pdata)
inserts = []
for p in pdata:
inserts.append( (hid,
pids[p],
pdata[p]['startCash'],
pdata[p]['seatNo'],
pdata[p]['card1'],
pdata[p]['card2'],
pdata[p]['card3'],
pdata[p]['card4'],
pdata[p]['card5'],
pdata[p]['card6'],
pdata[p]['card7'],
pdata[p]['winnings'],
pdata[p]['rake'],
pdata[p]['totalProfit'],
pdata[p]['street0VPI'],
pdata[p]['street1Seen'],
pdata[p]['street2Seen'],
pdata[p]['street3Seen'],
pdata[p]['street4Seen'],
pdata[p]['sawShowdown'],
pdata[p]['wonAtSD'],
pdata[p]['street0Aggr'],
pdata[p]['street1Aggr'],
pdata[p]['street2Aggr'],
pdata[p]['street3Aggr'],
pdata[p]['street4Aggr'],
pdata[p]['street1CBChance'],
pdata[p]['street2CBChance'],
pdata[p]['street3CBChance'],
pdata[p]['street4CBChance'],
pdata[p]['street1CBDone'],
pdata[p]['street2CBDone'],
pdata[p]['street3CBDone'],
pdata[p]['street4CBDone'],
pdata[p]['wonWhenSeenStreet1'],
pdata[p]['street0Calls'],
pdata[p]['street1Calls'],
pdata[p]['street2Calls'],
pdata[p]['street3Calls'],
pdata[p]['street4Calls'],
pdata[p]['street0Bets'],
pdata[p]['street1Bets'],
pdata[p]['street2Bets'],
pdata[p]['street3Bets'],
pdata[p]['street4Bets'],
pdata[p]['position'],
pdata[p]['tourneyTypeId'],
pdata[p]['startCards'],
pdata[p]['street0_3BChance'],
pdata[p]['street0_3BDone'],
pdata[p]['otherRaisedStreet1'],
pdata[p]['otherRaisedStreet2'],
pdata[p]['otherRaisedStreet3'],
pdata[p]['otherRaisedStreet4'],
pdata[p]['foldToOtherRaisedStreet1'],
pdata[p]['foldToOtherRaisedStreet2'],
pdata[p]['foldToOtherRaisedStreet3'],
pdata[p]['foldToOtherRaisedStreet4'],
pdata[p]['stealAttemptChance'],
pdata[p]['stealAttempted'],
pdata[p]['foldBbToStealChance'],
pdata[p]['foldedBbToSteal'],
pdata[p]['foldSbToStealChance'],
pdata[p]['foldedSbToSteal'],
pdata[p]['foldToStreet1CBChance'],
pdata[p]['foldToStreet1CBDone'],
pdata[p]['foldToStreet2CBChance'],
pdata[p]['foldToStreet2CBDone'],
pdata[p]['foldToStreet3CBChance'],
pdata[p]['foldToStreet3CBDone'],
pdata[p]['foldToStreet4CBChance'],
pdata[p]['foldToStreet4CBDone'],
pdata[p]['street1CheckCallRaiseChance'],
pdata[p]['street1CheckCallRaiseDone'],
pdata[p]['street2CheckCallRaiseChance'],
pdata[p]['street2CheckCallRaiseDone'],
pdata[p]['street3CheckCallRaiseChance'],
pdata[p]['street3CheckCallRaiseDone'],
pdata[p]['street4CheckCallRaiseChance'],
pdata[p]['street4CheckCallRaiseDone']
) )
q = self.sql.query['store_hands_players']
q = q.replace('%s', self.sql.query['placeholder'])
#print "DEBUG: inserts: %s" %inserts
#print "DEBUG: q: %s" % q
c = self.get_cursor()
c.executemany(q, inserts)
def storeHudCache(self, gid, pids, starttime, pdata):
"""Update cached statistics. If update fails because no record exists, do an insert."""
if self.use_date_in_hudcache:
styleKey = datetime.strftime(starttime, 'd%y%m%d')
#styleKey = "d%02d%02d%02d" % (hand_start_time.year-2000, hand_start_time.month, hand_start_time.day)
else:
# hard-code styleKey as 'A000000' (all-time cache, no key) for now
styleKey = 'A000000'
update_hudcache = self.sql.query['update_hudcache']
update_hudcache = update_hudcache.replace('%s', self.sql.query['placeholder'])
insert_hudcache = self.sql.query['insert_hudcache']
insert_hudcache = insert_hudcache.replace('%s', self.sql.query['placeholder'])
#print "DEBUG: %s %s %s" %(hid, pids, pdata)
inserts = []
for p in pdata:
line = [0]*61
line[0] = 1 # HDs
if pdata[p]['street0VPI']: line[1] = 1
if pdata[p]['street0Aggr']: line[2] = 1
if pdata[p]['street0_3BChance']: line[3] = 1
if pdata[p]['street0_3BDone']: line[4] = 1
if pdata[p]['street1Seen']: line[5] = 1
if pdata[p]['street2Seen']: line[6] = 1
if pdata[p]['street3Seen']: line[7] = 1
if pdata[p]['street4Seen']: line[8] = 1
if pdata[p]['sawShowdown']: line[9] = 1
if pdata[p]['street1Aggr']: line[10] = 1
if pdata[p]['street2Aggr']: line[11] = 1
if pdata[p]['street3Aggr']: line[12] = 1
if pdata[p]['street4Aggr']: line[13] = 1
if pdata[p]['otherRaisedStreet1']: line[14] = 1
if pdata[p]['otherRaisedStreet2']: line[15] = 1
if pdata[p]['otherRaisedStreet3']: line[16] = 1
if pdata[p]['otherRaisedStreet4']: line[17] = 1
if pdata[p]['foldToOtherRaisedStreet1']: line[18] = 1
if pdata[p]['foldToOtherRaisedStreet2']: line[19] = 1
if pdata[p]['foldToOtherRaisedStreet3']: line[20] = 1
if pdata[p]['foldToOtherRaisedStreet4']: line[21] = 1
line[22] = pdata[p]['wonWhenSeenStreet1']
line[23] = pdata[p]['wonAtSD']
if pdata[p]['stealAttemptChance']: line[24] = 1
if pdata[p]['stealAttempted']: line[25] = 1
if pdata[p]['foldBbToStealChance']: line[26] = 1
if pdata[p]['foldedBbToSteal']: line[27] = 1
if pdata[p]['foldSbToStealChance']: line[28] = 1
if pdata[p]['foldedSbToSteal']: line[29] = 1
if pdata[p]['street1CBChance']: line[30] = 1
if pdata[p]['street1CBDone']: line[31] = 1
if pdata[p]['street2CBChance']: line[32] = 1
if pdata[p]['street2CBDone']: line[33] = 1
if pdata[p]['street3CBChance']: line[34] = 1
if pdata[p]['street3CBDone']: line[35] = 1
if pdata[p]['street4CBChance']: line[36] = 1
if pdata[p]['street4CBDone']: line[37] = 1
if pdata[p]['foldToStreet1CBChance']: line[38] = 1
if pdata[p]['foldToStreet1CBDone']: line[39] = 1
if pdata[p]['foldToStreet2CBChance']: line[40] = 1
if pdata[p]['foldToStreet2CBDone']: line[41] = 1
if pdata[p]['foldToStreet3CBChance']: line[42] = 1
if pdata[p]['foldToStreet3CBDone']: line[43] = 1
if pdata[p]['foldToStreet4CBChance']: line[44] = 1
if pdata[p]['foldToStreet4CBDone']: line[45] = 1
line[46] = pdata[p]['totalProfit']
if pdata[p]['street1CheckCallRaiseChance']: line[47] = 1
if pdata[p]['street1CheckCallRaiseDone']: line[48] = 1
if pdata[p]['street2CheckCallRaiseChance']: line[49] = 1
if pdata[p]['street2CheckCallRaiseDone']: line[50] = 1
if pdata[p]['street3CheckCallRaiseChance']: line[51] = 1
if pdata[p]['street3CheckCallRaiseDone']: line[52] = 1
if pdata[p]['street4CheckCallRaiseChance']: line[53] = 1
if pdata[p]['street4CheckCallRaiseDone']: line[54] = 1
line[55] = gid # gametypeId
line[56] = pids[p] # playerId
line[57] = len(pids) # activeSeats
pos = {'B':'B', 'S':'S', 0:'D', 1:'C', 2:'M', 3:'M', 4:'M', 5:'E', 6:'E', 7:'E', 8:'E', 9:'E' }
line[58] = pos[pdata[p]['position']]
line[59] = pdata[p]['tourneyTypeId']
line[60] = styleKey # styleKey
inserts.append(line)
cursor = self.get_cursor()
for row in inserts:
# Try to do the update first:
num = cursor.execute(update_hudcache, row)
#print "DEBUG: values: %s" % row[-6:]
# Test statusmessage to see if update worked, do insert if not
# num is a cursor in sqlite
if ((self.backend == self.PGSQL and cursor.statusmessage != "UPDATE 1")
or (self.backend == self.MYSQL_INNODB and num == 0)
or (self.backend == self.SQLITE and num.rowcount == 0)):
#move the last 6 items in WHERE clause of row from the end of the array
# to the beginning for the INSERT statement
#print "DEBUG: using INSERT: %s" % num
row = row[-6:] + row[:-6]
num = cursor.execute(insert_hudcache, row)
#print "DEBUG: Successfully(?: %s) updated HudCacho using INSERT" % num
else:
#print "DEBUG: Successfully updated HudCacho using UPDATE"
pass
def isDuplicate(self, gametypeID, siteHandNo):
dup = False
c = self.get_cursor()
c.execute(self.sql.query['isAlreadyInDB'], (gametypeID, siteHandNo))
result = c.fetchall()
if len(result) > 0:
dup = True
return dup
def getGameTypeId(self, siteid, game):
c = self.get_cursor()
#FIXME: Fixed for NL at the moment
c.execute(self.sql.query['getGametypeNL'], (siteid, game['type'], game['category'], game['limitType'],
int(Decimal(game['sb'])*100), int(Decimal(game['bb'])*100)))
tmp = c.fetchone()
if (tmp == None):
hilo = "h"
if game['category'] in ['studhilo', 'omahahilo']:
hilo = "s"
elif game['category'] in ['razz','27_3draw','badugi']:
hilo = "l"
tmp = self.insertGameTypes( (siteid, game['type'], game['base'], game['category'], game['limitType'], hilo,
int(Decimal(game['sb'])*100), int(Decimal(game['bb'])*100), 0, 0) )
return tmp[0]
def getSqlPlayerIDs(self, pnames, siteid):
result = {}
if(self.pcache == None):
self.pcache = LambdaDict(lambda key:self.insertPlayer(key, siteid))
for player in pnames:
result[player] = self.pcache[player]
# NOTE: Using the LambdaDict does the same thing as:
#if player in self.pcache:
# #print "DEBUG: cachehit"
# pass
#else:
# self.pcache[player] = self.insertPlayer(player, siteid)
#result[player] = self.pcache[player]
return result
def insertPlayer(self, name, site_id):
result = None
(_name, _len) = encoder.encode(unicode(name))
c = self.get_cursor()
q = "SELECT name, id FROM Players WHERE siteid=%s and name=%s"
q = q.replace('%s', self.sql.query['placeholder'])
#NOTE/FIXME?: MySQL has ON DUPLICATE KEY UPDATE
#Usage:
# INSERT INTO `tags` (`tag`, `count`)
# VALUES ($tag, 1)
# ON DUPLICATE KEY UPDATE `count`=`count`+1;
#print "DEBUG: name: %s site: %s" %(name, site_id)
c.execute (q, (site_id, _name))
tmp = c.fetchone()
if (tmp == None): #new player
c.execute ("INSERT INTO Players (name, siteId) VALUES (%s, %s)".replace('%s',self.sql.query['placeholder'])
,(_name, site_id))
#Get last id might be faster here.
#c.execute ("SELECT id FROM Players WHERE name=%s", (name,))
result = self.get_last_insert_id(c)
else:
result = tmp[1]
return result
def insertGameTypes(self, row):
c = self.get_cursor()
c.execute( self.sql.query['insertGameTypes'], row )
return [self.get_last_insert_id(c)]
#################################
# Finish of NEWIMPORT CODE
#################################
def store_tourneys_players(self, tourney_id, player_ids, payin_amounts, ranks, winnings):
try:
result=[]
cursor = self.get_cursor()
#print "in store_tourneys_players. tourney_id:",tourney_id
#print "player_ids:",player_ids
#print "payin_amounts:",payin_amounts
#print "ranks:",ranks
#print "winnings:",winnings
for i in xrange(len(player_ids)):
try:
cursor.execute("savepoint ins_tplayer")
cursor.execute("""INSERT INTO TourneysPlayers
(tourneyId, playerId, payinAmount, rank, winnings) VALUES (%s, %s, %s, %s, %s)""".replace('%s', self.sql.query['placeholder']),
(tourney_id, player_ids[i], payin_amounts[i], ranks[i], winnings[i]))
tmp = self.get_last_insert_id(cursor)
result.append(tmp)
#print "created new tourneys_players.id:", tmp
except:
cursor.execute("rollback to savepoint ins_tplayer")
cursor.execute("SELECT id FROM TourneysPlayers WHERE tourneyId=%s AND playerId+0=%s".replace('%s', self.sql.query['placeholder'])
,(tourney_id, player_ids[i]))
tmp = cursor.fetchone()
#print "tried SELECTing tourneys_players.id:", tmp
try:
len(tmp)
result.append(tmp[0])
except:
print "tplayer id not found for tourney,player %s,%s" % (tourney_id, player_ids[i])
pass
except:
raise FpdbError( "store_tourneys_players error: " + str(sys.exc_value) )
cursor.execute("release savepoint ins_tplayer")
#print "store_tourneys_players returning", result
return result
#end def store_tourneys_players
# read HandToWrite objects from q and insert into database
def insert_queue_hands(self, q, maxwait=10, commitEachHand=True):
n,fails,maxTries,firstWait = 0,0,4,0.1
sendFinal = False
t0 = time()
while True:
try:
h = q.get(True) # (True,maxWait) has probs if 1st part of import is all dups
except Queue.Empty:
# Queue.Empty exception thrown if q was empty for
# if q.empty() also possible - no point if testing for Queue.Empty exception
# maybe increment a counter and only break after a few times?
# could also test threading.active_count() or look through threading.enumerate()
# so break immediately if no threads, but count up to X exceptions if a writer
# thread is still alive???
print "queue empty too long - writer stopping ..."
break
except:
print "writer stopping, error reading queue: " + str(sys.exc_info())
break
#print "got hand", str(h.get_finished())
tries,wait,again = 0,firstWait,True
while again:
try:
again = False # set this immediately to avoid infinite loops!
if h.get_finished():
# all items on queue processed
sendFinal = True
else:
self.store_the_hand(h)
# optional commit, could be every hand / every N hands / every time a
# commit message received?? mark flag to indicate if commits outstanding
if commitEachHand:
self.commit()
n = n + 1
except:
#print "iqh store error", sys.exc_value # debug
self.rollback()
if re.search('deadlock', str(sys.exc_info()[1]), re.I):
# deadlocks only a problem if hudcache is being updated
tries = tries + 1
if tries < maxTries and wait < 5: # wait < 5 just to make sure
print "deadlock detected - trying again ..."
sleep(wait)
wait = wait + wait
again = True
else:
print "too many deadlocks - failed to store hand " + h.get_siteHandNo()
if not again:
fails = fails + 1
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error storing hand: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
# finished trying to store hand
# always reduce q count, whether or not this hand was saved ok
q.task_done()
# while True loop
self.commit()
if sendFinal:
q.task_done()
print "db writer finished: stored %d hands (%d fails) in %.1f seconds" % (n, fails, time()-t0)
# end def insert_queue_hands():
def send_finish_msg(self, q):
try:
h = HandToWrite(True)
q.put(h)
except:
err = traceback.extract_tb(sys.exc_info()[2])[-1]
print "***Error sending finish: "+err[2]+"("+str(err[1])+"): "+str(sys.exc_info()[1])
# end def send_finish_msg():
def tRecogniseTourneyType(self, tourney):
logging.debug("Database.tRecogniseTourneyType")
typeId = 1
# Check if Tourney exists, and if so retrieve TTypeId : in that case, check values of the ttype
cursor = self.get_cursor()
cursor.execute (self.sql.query['getTourneyTypeIdByTourneyNo'].replace('%s', self.sql.query['placeholder']),
(tourney.tourNo, tourney.siteId)
)
result=cursor.fetchone()
expectedValues = { 1 : "buyin", 2 : "fee", 4 : "isKO", 5 : "isRebuy", 6 : "speed",
7 : "isHU", 8 : "isShootout", 9 : "isMatrix" }
typeIdMatch = True
try:
len(result)
typeId = result[0]
logging.debug("Tourney found in db with Tourney_Type_ID = %d" % typeId)
for ev in expectedValues :
if ( getattr( tourney, expectedValues.get(ev) ) <> result[ev] ):
logging.debug("TypeId mismatch : wrong %s : Tourney=%s / db=%s" % (expectedValues.get(ev), getattr( tourney, expectedValues.get(ev)), result[ev]) )
typeIdMatch = False
#break
except:
# Tourney not found : a TourneyTypeId has to be found or created for that specific tourney
typeIdMatch = False
if typeIdMatch == False :
# Check for an existing TTypeId that matches tourney info (buyin/fee, knockout, rebuy, speed, matrix, shootout)
# if not found create it
logging.debug("Searching for a TourneyTypeId matching TourneyType data")
cursor.execute (self.sql.query['getTourneyTypeId'].replace('%s', self.sql.query['placeholder']),
(tourney.siteId, tourney.buyin, tourney.fee, tourney.isKO,
tourney.isRebuy, tourney.speed, tourney.isHU, tourney.isShootout, tourney.isMatrix)
)
result=cursor.fetchone()
try:
len(result)
typeId = result[0]
logging.debug("Existing Tourney Type Id found : %d" % typeId)
except TypeError: #this means we need to create a new entry
logging.debug("Tourney Type Id not found : create one")
cursor.execute (self.sql.query['insertTourneyTypes'].replace('%s', self.sql.query['placeholder']),
(tourney.siteId, tourney.buyin, tourney.fee, tourney.isKO, tourney.isRebuy,
tourney.speed, tourney.isHU, tourney.isShootout, tourney.isMatrix)
)
typeId = self.get_last_insert_id(cursor)
return typeId
#end def tRecogniseTourneyType
# Class used to hold all the data needed to write a hand to the db
# mainParser() in fpdb_parse_logic.py creates one of these and then passes it to
# self.insert_queue_hands()
class HandToWrite:
def __init__(self, finished = False): # db_name and game not used any more
try:
self.finished = finished
self.config = None
self.settings = None
self.base = None
self.category = None
self.siteTourneyNo = None
self.buyin = None
self.fee = None
self.knockout = None
self.entries = None
self.prizepool = None
self.tourneyStartTime = None
self.isTourney = None
self.tourneyTypeId = None
self.siteID = None
self.siteHandNo = None
self.gametypeID = None
self.handStartTime = None
self.names = None
self.playerIDs = None
self.startCashes = None
self.positions = None
self.antes = None
self.cardValues = None
self.cardSuits = None
self.boardValues = None
self.boardSuits = None
self.winnings = None
self.rakes = None
self.actionTypes = None
self.allIns = None
self.actionAmounts = None
self.actionNos = None
self.hudImportData = None
self.maxSeats = None
self.tableName = None
self.seatNos = None
self.payin_amounts = None # tourney import was complaining mightily about this missing
except:
print "htw.init error: " + str(sys.exc_info())
raise
# end def __init__
def set_all( self, config, settings, base, category, siteTourneyNo, buyin
, fee, knockout, entries, prizepool, tourneyStartTime
, isTourney, tourneyTypeId, siteID, siteHandNo
, gametypeID, handStartTime, names, playerIDs, startCashes
, positions, antes, cardValues, cardSuits, boardValues, boardSuits
, winnings, rakes, actionTypes, allIns, actionAmounts
, actionNos, hudImportData, maxSeats, tableName, seatNos):
try:
self.config = config
self.settings = settings
self.base = base
self.category = category
self.siteTourneyNo = siteTourneyNo
self.buyin = buyin
self.fee = fee
self.knockout = knockout
self.entries = entries
self.prizepool = prizepool
self.tourneyStartTime = tourneyStartTime
self.isTourney = isTourney
self.tourneyTypeId = tourneyTypeId
self.siteID = siteID
self.siteHandNo = siteHandNo
self.gametypeID = gametypeID
self.handStartTime = handStartTime
self.names = names
self.playerIDs = playerIDs
self.startCashes = startCashes
self.positions = positions
self.antes = antes
self.cardValues = cardValues
self.cardSuits = cardSuits
self.boardValues = boardValues
self.boardSuits = boardSuits
self.winnings = winnings
self.rakes = rakes
self.actionTypes = actionTypes
self.allIns = allIns
self.actionAmounts = actionAmounts
self.actionNos = actionNos
self.hudImportData = hudImportData
self.maxSeats = maxSeats
self.tableName = tableName
self.seatNos = seatNos
except:
print "htw.set_all error: " + str(sys.exc_info())
raise
# end def set_hand
def get_finished(self):
return( self.finished )
# end def get_finished
def get_siteHandNo(self):
return( self.siteHandNo )
# end def get_siteHandNo
if __name__=="__main__":
c = Configuration.Config()
db_connection = Database(c) # mysql fpdb holdem
# db_connection = Database(c, 'fpdb-p', 'test') # mysql fpdb holdem
# db_connection = Database(c, 'PTrackSv2', 'razz') # mysql razz
# db_connection = Database(c, 'ptracks', 'razz') # postgres
print "database connection object = ", db_connection.connection
# db_connection.recreate_tables()
db_connection.dropAllIndexes()
db_connection.createAllIndexes()
h = db_connection.get_last_hand()
print "last hand = ", h
hero = db_connection.get_player_id(c, 'PokerStars', 'nutOmatic')
if hero:
print "nutOmatic is id_player = %d" % hero
stat_dict = db_connection.get_stats_from_hand(h, "ring")
for p in stat_dict.keys():
print p, " ", stat_dict[p]
print "cards =", db_connection.get_cards(u'1')
db_connection.close_connection
print "press enter to continue"
sys.stdin.readline()
#Code borrowed from http://push.cx/2008/caching-dictionaries-in-python-vs-ruby
class LambdaDict(dict):
def __init__(self, l):
super(LambdaDict, self).__init__()
self.l = l
def __getitem__(self, key):
if key in self:
return self.get(key)
else:
self.__setitem__(key, self.l(key))
return self.get(key)
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