move most stuff from fpdb_db.py to Database.py and simplify db connections in fpdb_import
This commit is contained in:
sqlcoder
@@ -33,112 +33,6 @@ class fpdb_db:
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self.db = None
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self.cursor = None
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self.sql = {}
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# Data Structures for index and foreign key creation
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# drop_code is an int with possible values: 0 - don't drop for bulk import
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# 1 - drop during bulk import
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# db differences:
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# - note that mysql automatically creates indexes on constrained columns when
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# foreign keys are created, while postgres does not. Hence the much longer list
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# of indexes is required for postgres.
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# all primary keys are left on all the time
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#
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# table column drop_code
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self.indexes = [
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[ ] # no db with index 0
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, [ ] # no db with index 1
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, [ # indexes for mysql (list index 2)
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{'tab':'Players', 'col':'name', 'drop':0}
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, {'tab':'Hands', 'col':'siteHandNo', 'drop':0}
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, {'tab':'Tourneys', 'col':'siteTourneyNo', 'drop':0}
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]
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, [ # indexes for postgres (list index 3)
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{'tab':'Boardcards', 'col':'handId', 'drop':0}
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, {'tab':'Gametypes', 'col':'siteId', 'drop':0}
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, {'tab':'Hands', 'col':'gametypeId', 'drop':0} # mct 22/3/09
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, {'tab':'Hands', 'col':'siteHandNo', 'drop':0}
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, {'tab':'HandsActions', 'col':'handsPlayerId', 'drop':0}
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, {'tab':'HandsPlayers', 'col':'handId', 'drop':1}
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, {'tab':'HandsPlayers', 'col':'playerId', 'drop':1}
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, {'tab':'HandsPlayers', 'col':'tourneysPlayersId', 'drop':0}
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, {'tab':'HudCache', 'col':'gametypeId', 'drop':1}
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, {'tab':'HudCache', 'col':'playerId', 'drop':0}
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, {'tab':'HudCache', 'col':'tourneyTypeId', 'drop':0}
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, {'tab':'Players', 'col':'siteId', 'drop':1}
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, {'tab':'Players', 'col':'name', 'drop':0}
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, {'tab':'Tourneys', 'col':'tourneyTypeId', 'drop':1}
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, {'tab':'Tourneys', 'col':'siteTourneyNo', 'drop':0}
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, {'tab':'TourneysPlayers', 'col':'playerId', 'drop':0}
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, {'tab':'TourneysPlayers', 'col':'tourneyId', 'drop':0}
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, {'tab':'TourneyTypes', 'col':'siteId', 'drop':0}
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]
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, [ # indexes for sqlite (list index 4)
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]
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]
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self.foreignKeys = [
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[ ] # no db with index 0
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, [ ] # no db with index 1
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, [ # foreign keys for mysql
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{'fktab':'Hands', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
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, {'fktab':'HandsPlayers', 'fkcol':'handId', 'rtab':'Hands', 'rcol':'id', 'drop':1}
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, {'fktab':'HandsPlayers', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':1}
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, {'fktab':'HandsActions', 'fkcol':'handsPlayerId', 'rtab':'HandsPlayers', 'rcol':'id', 'drop':1}
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, {'fktab':'HudCache', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
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, {'fktab':'HudCache', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':0}
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, {'fktab':'HudCache', 'fkcol':'tourneyTypeId', 'rtab':'TourneyTypes', 'rcol':'id', 'drop':1}
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]
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, [ # foreign keys for postgres
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{'fktab':'Hands', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
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, {'fktab':'HandsPlayers', 'fkcol':'handId', 'rtab':'Hands', 'rcol':'id', 'drop':1}
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, {'fktab':'HandsPlayers', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':1}
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, {'fktab':'HandsActions', 'fkcol':'handsPlayerId', 'rtab':'HandsPlayers', 'rcol':'id', 'drop':1}
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, {'fktab':'HudCache', 'fkcol':'gametypeId', 'rtab':'Gametypes', 'rcol':'id', 'drop':1}
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, {'fktab':'HudCache', 'fkcol':'playerId', 'rtab':'Players', 'rcol':'id', 'drop':0}
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, {'fktab':'HudCache', 'fkcol':'tourneyTypeId', 'rtab':'TourneyTypes', 'rcol':'id', 'drop':1}
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]
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]
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# MySQL Notes:
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# "FOREIGN KEY (handId) REFERENCES Hands(id)" - requires index on Hands.id
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# - creates index handId on <thistable>.handId
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# alter table t drop foreign key fk
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# alter table t add foreign key (fkcol) references tab(rcol)
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# alter table t add constraint c foreign key (fkcol) references tab(rcol)
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# (fkcol is used for foreigh key name)
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# mysql to list indexes:
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# SELECT table_name, index_name, non_unique, column_name
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# FROM INFORMATION_SCHEMA.STATISTICS
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# WHERE table_name = 'tbl_name'
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# AND table_schema = 'db_name'
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# ORDER BY table_name, index_name, seq_in_index
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#
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# ALTER TABLE Tourneys ADD INDEX siteTourneyNo(siteTourneyNo)
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# ALTER TABLE tab DROP INDEX idx
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# mysql to list fks:
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# SELECT constraint_name, table_name, column_name, referenced_table_name, referenced_column_name
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# FROM information_schema.KEY_COLUMN_USAGE
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# WHERE REFERENCED_TABLE_SCHEMA = (your schema name here)
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# AND REFERENCED_TABLE_NAME is not null
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# ORDER BY TABLE_NAME, COLUMN_NAME;
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# this may indicate missing object
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# _mysql_exceptions.OperationalError: (1025, "Error on rename of '.\\fpdb\\hands' to '.\\fpdb\\#sql2-7f0-1b' (errno: 152)")
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# PG notes:
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# To add a foreign key constraint to a table:
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# ALTER TABLE tab ADD CONSTRAINT c FOREIGN KEY (col) REFERENCES t2(col2) MATCH FULL;
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# ALTER TABLE tab DROP CONSTRAINT zipchk
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#
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# Note: index names must be unique across a schema
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# CREATE INDEX idx ON tab(col)
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# DROP INDEX idx
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#end def __init__
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def do_connect(self, config=None):
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@@ -244,80 +138,6 @@ class fpdb_db:
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#print "started fpdb_db.reconnect"
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self.disconnect(due_to_error)
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self.connect(self.backend, self.host, self.database, self.user, self.password)
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def create_tables(self):
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#todo: should detect and fail gracefully if tables already exist.
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try:
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logging.debug(self.sql.query['createSettingsTable'])
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self.cursor.execute(self.sql.query['createSettingsTable'])
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logging.debug(self.sql.query['createSitesTable'])
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self.cursor.execute(self.sql.query['createSitesTable'])
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self.cursor.execute(self.sql.query['createGametypesTable'])
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self.cursor.execute(self.sql.query['createPlayersTable'])
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self.cursor.execute(self.sql.query['createAutoratesTable'])
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self.cursor.execute(self.sql.query['createHandsTable'])
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self.cursor.execute(self.sql.query['createTourneyTypesTable'])
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self.cursor.execute(self.sql.query['createTourneysTable'])
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self.cursor.execute(self.sql.query['createTourneysPlayersTable'])
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self.cursor.execute(self.sql.query['createHandsPlayersTable'])
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#self.cursor.execute(self.sql.query['createHandsActionsTable'])
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self.cursor.execute(self.sql.query['createHudCacheTable'])
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#self.cursor.execute(self.sql.query['addTourneyIndex'])
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#self.cursor.execute(self.sql.query['addHandsIndex'])
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#self.cursor.execute(self.sql.query['addPlayersIndex'])
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self.fillDefaultData()
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self.db.commit()
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except:
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print "err: ", str(sys.exc_value)
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self.db.rollback()
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raise fpdb_simple.FpdbError( "Error creating tables " + str(sys.exc_value) )
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#end def disconnect
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def drop_tables(self):
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"""Drops the fpdb tables from the current db"""
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if(self.get_backend_name() == 'MySQL InnoDB'):
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#Databases with FOREIGN KEY support need this switched of before you can drop tables
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self.drop_referential_integrity()
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# Query the DB to see what tables exist
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self.cursor.execute(self.sql.query['list_tables'])
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for table in self.cursor:
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self.cursor.execute(self.sql.query['drop_table'] + table[0])
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elif(self.get_backend_name() == 'PostgreSQL'):
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self.db.commit()# I have no idea why this makes the query work--REB 07OCT2008
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self.cursor.execute(self.sql.query['list_tables'])
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tables = self.cursor.fetchall()
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for table in tables:
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self.cursor.execute(self.sql.query['drop_table'] + table[0] + ' cascade')
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elif(self.get_backend_name() == 'SQLite'):
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self.cursor.execute(self.sql.query['list_tables'])
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for table in self.cursor.fetchall():
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logging.debug(self.sql.query['drop_table'] + table[0])
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self.cursor.execute(self.sql.query['drop_table'] + table[0])
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self.db.commit()
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#end def drop_tables
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def drop_referential_integrity(self):
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"""Update all tables to remove foreign keys"""
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self.cursor.execute(self.sql.query['list_tables'])
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result = self.cursor.fetchall()
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for i in range(len(result)):
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self.cursor.execute("SHOW CREATE TABLE " + result[i][0])
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inner = self.cursor.fetchall()
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for j in range(len(inner)):
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# result[i][0] - Table name
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# result[i][1] - CREATE TABLE parameters
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#Searching for CONSTRAINT `tablename_ibfk_1`
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for m in re.finditer('(ibfk_[0-9]+)', inner[j][1]):
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key = "`" + inner[j][0] + "_" + m.group() + "`"
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self.cursor.execute("ALTER TABLE " + inner[j][0] + " DROP FOREIGN KEY " + key)
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self.db.commit()
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#end drop_referential_inegrity
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def get_backend_name(self):
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"""Returns the name of the currently used backend"""
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@@ -334,258 +154,6 @@ class fpdb_db:
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def get_db_info(self):
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return (self.host, self.database, self.user, self.password)
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#end def get_db_info
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def fillDefaultData(self):
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self.cursor.execute("INSERT INTO Settings (version) VALUES (118);")
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self.cursor.execute("INSERT INTO Sites (name,currency) VALUES ('Full Tilt Poker', 'USD')")
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self.cursor.execute("INSERT INTO Sites (name,currency) VALUES ('PokerStars', 'USD')")
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self.cursor.execute("INSERT INTO Sites (name,currency) VALUES ('Everleaf', 'USD')")
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self.cursor.execute("INSERT INTO Sites (name,currency) VALUES ('Win2day', 'USD')")
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self.cursor.execute("INSERT INTO TourneyTypes VALUES (DEFAULT, 1, 0, 0, 0, False);")
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#self.cursor.execute("""INSERT INTO TourneyTypes
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# (siteId,buyin,fee,knockout,rebuyOrAddon) VALUES
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# (1,0,0,0,?)""",(False,) )
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#end def fillDefaultData
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def recreate_tables(self):
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"""(Re-)creates the tables of the current DB"""
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self.drop_tables()
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self.create_tables()
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self.createAllIndexes()
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self.db.commit()
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print "Finished recreating tables"
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#end def recreate_tables
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def prepareBulkImport(self):
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"""Drop some indexes/foreign keys to prepare for bulk import.
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Currently keeping the standalone indexes as needed to import quickly"""
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stime = time()
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if self.backend == self.MYSQL_INNODB:
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self.cursor.execute("SET foreign_key_checks=0")
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self.cursor.execute("SET autocommit=0")
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return
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if self.backend == self.PGSQL:
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self.db.set_isolation_level(0) # allow table/index operations to work
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for fk in self.foreignKeys[self.backend]:
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if fk['drop'] == 1:
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if self.backend == self.MYSQL_INNODB:
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self.cursor.execute("SELECT constraint_name " +
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"FROM information_schema.KEY_COLUMN_USAGE " +
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#"WHERE REFERENCED_TABLE_SCHEMA = 'fpdb'
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"WHERE 1=1 " +
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"AND table_name = %s AND column_name = %s " +
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"AND referenced_table_name = %s " +
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"AND referenced_column_name = %s ",
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(fk['fktab'], fk['fkcol'], fk['rtab'], fk['rcol']) )
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cons = self.cursor.fetchone()
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#print "preparebulk: cons=", cons
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if cons:
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print "dropping mysql fk", cons[0], fk['fktab'], fk['fkcol']
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try:
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self.cursor.execute("alter table " + fk['fktab'] + " drop foreign key " + cons[0])
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except:
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pass
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elif self.backend == self.PGSQL:
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# DON'T FORGET TO RECREATE THEM!!
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print "dropping pg fk", fk['fktab'], fk['fkcol']
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try:
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# try to lock table to see if index drop will work:
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# hmmm, tested by commenting out rollback in grapher. lock seems to work but
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# then drop still hangs :-( does work in some tests though??
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# will leave code here for now pending further tests/enhancement ...
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self.cursor.execute( "lock table %s in exclusive mode nowait" % (fk['fktab'],) )
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#print "after lock, status:", self.cursor.statusmessage
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#print "alter table %s drop constraint %s_%s_fkey" % (fk['fktab'], fk['fktab'], fk['fkcol'])
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try:
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self.cursor.execute("alter table %s drop constraint %s_%s_fkey" % (fk['fktab'], fk['fktab'], fk['fkcol']))
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print "dropped pg fk pg fk %s_%s_fkey, continuing ..." % (fk['fktab'], fk['fkcol'])
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except:
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if "does not exist" not in str(sys.exc_value):
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print "warning: drop pg fk %s_%s_fkey failed: %s, continuing ..." \
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% (fk['fktab'], fk['fkcol'], str(sys.exc_value).rstrip('\n') )
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except:
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print "warning: constraint %s_%s_fkey not dropped: %s, continuing ..." \
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% (fk['fktab'],fk['fkcol'], str(sys.exc_value).rstrip('\n'))
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else:
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print "Only MySQL and Postgres supported so far"
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return -1
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for idx in self.indexes[self.backend]:
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if idx['drop'] == 1:
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if self.backend == self.MYSQL_INNODB:
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print "dropping mysql index ", idx['tab'], idx['col']
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try:
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# apparently nowait is not implemented in mysql so this just hands if there are locks
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# preventing the index drop :-(
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self.cursor.execute( "alter table %s drop index %s", (idx['tab'],idx['col']) )
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except:
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pass
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elif self.backend == self.PGSQL:
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# DON'T FORGET TO RECREATE THEM!!
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print "dropping pg index ", idx['tab'], idx['col']
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try:
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# try to lock table to see if index drop will work:
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self.cursor.execute( "lock table %s in exclusive mode nowait" % (idx['tab'],) )
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#print "after lock, status:", self.cursor.statusmessage
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try:
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# table locked ok so index drop should work:
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#print "drop index %s_%s_idx" % (idx['tab'],idx['col'])
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self.cursor.execute( "drop index if exists %s_%s_idx" % (idx['tab'],idx['col']) )
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#print "dropped pg index ", idx['tab'], idx['col']
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except:
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if "does not exist" not in str(sys.exc_value):
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print "warning: drop index %s_%s_idx failed: %s, continuing ..." \
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% (idx['tab'],idx['col'], str(sys.exc_value).rstrip('\n'))
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except:
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print "warning: index %s_%s_idx not dropped %s, continuing ..." \
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% (idx['tab'],idx['col'], str(sys.exc_value).rstrip('\n'))
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else:
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print "Error: Only MySQL and Postgres supported so far"
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return -1
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if self.backend == self.PGSQL:
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self.db.set_isolation_level(1) # go back to normal isolation level
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self.db.commit() # seems to clear up errors if there were any in postgres
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ptime = time() - stime
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print "prepare import took", ptime, "seconds"
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#end def prepareBulkImport
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def afterBulkImport(self):
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"""Re-create any dropped indexes/foreign keys after bulk import"""
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stime = time()
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if self.backend == self.MYSQL_INNODB:
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self.cursor.execute("SET foreign_key_checks=1")
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self.cursor.execute("SET autocommit=1")
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return
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if self.backend == self.PGSQL:
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self.db.set_isolation_level(0) # allow table/index operations to work
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for fk in self.foreignKeys[self.backend]:
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if fk['drop'] == 1:
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if self.backend == self.MYSQL_INNODB:
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self.cursor.execute("SELECT constraint_name " +
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"FROM information_schema.KEY_COLUMN_USAGE " +
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#"WHERE REFERENCED_TABLE_SCHEMA = 'fpdb'
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"WHERE 1=1 " +
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"AND table_name = %s AND column_name = %s " +
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"AND referenced_table_name = %s " +
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"AND referenced_column_name = %s ",
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(fk['fktab'], fk['fkcol'], fk['rtab'], fk['rcol']) )
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cons = self.cursor.fetchone()
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#print "afterbulk: cons=", cons
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if cons:
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pass
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else:
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print "creating fk ", fk['fktab'], fk['fkcol'], "->", fk['rtab'], fk['rcol']
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try:
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self.cursor.execute("alter table " + fk['fktab'] + " add foreign key ("
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+ fk['fkcol'] + ") references " + fk['rtab'] + "("
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+ fk['rcol'] + ")")
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except:
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pass
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elif self.backend == self.PGSQL:
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print "creating fk ", fk['fktab'], fk['fkcol'], "->", fk['rtab'], fk['rcol']
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try:
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self.cursor.execute("alter table " + fk['fktab'] + " add constraint "
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+ fk['fktab'] + '_' + fk['fkcol'] + '_fkey'
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+ " foreign key (" + fk['fkcol']
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+ ") references " + fk['rtab'] + "(" + fk['rcol'] + ")")
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except:
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pass
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else:
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print "Only MySQL and Postgres supported so far"
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return -1
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for idx in self.indexes[self.backend]:
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if idx['drop'] == 1:
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if self.backend == self.MYSQL_INNODB:
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print "creating mysql index ", idx['tab'], idx['col']
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try:
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self.cursor.execute( "alter table %s add index %s(%s)"
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, (idx['tab'],idx['col'],idx['col']) )
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except:
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pass
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elif self.backend == self.PGSQL:
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# pass
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# mod to use tab_col for index name?
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print "creating pg index ", idx['tab'], idx['col']
|
||||
try:
|
||||
print "create index %s_%s_idx on %s(%s)" % (idx['tab'], idx['col'], idx['tab'], idx['col'])
|
||||
self.cursor.execute( "create index %s_%s_idx on %s(%s)"
|
||||
% (idx['tab'], idx['col'], idx['tab'], idx['col']) )
|
||||
except:
|
||||
print " ERROR! :-("
|
||||
pass
|
||||
else:
|
||||
print "Only MySQL and Postgres supported so far"
|
||||
return -1
|
||||
|
||||
if self.backend == self.PGSQL:
|
||||
self.db.set_isolation_level(1) # go back to normal isolation level
|
||||
self.db.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 createAllIndexes(self):
|
||||
"""Create new indexes"""
|
||||
if self.backend == self.PGSQL:
|
||||
self.db.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:
|
||||
self.cursor.execute( "alter table %s add index %s(%s)"
|
||||
, (idx['tab'],idx['col'],idx['col']) )
|
||||
except:
|
||||
pass
|
||||
elif self.backend == self.PGSQL:
|
||||
# mod to use tab_col for index name?
|
||||
print "creating pg index ", idx['tab'], idx['col']
|
||||
try:
|
||||
print "create index %s_%s_idx on %s(%s)" % (idx['tab'], idx['col'], idx['tab'], idx['col'])
|
||||
self.cursor.execute( "create index %s_%s_idx on %s(%s)"
|
||||
% (idx['tab'], idx['col'], idx['tab'], idx['col']) )
|
||||
except:
|
||||
print " ERROR! :-("
|
||||
pass
|
||||
else:
|
||||
print "Only MySQL and Postgres supported so far"
|
||||
return -1
|
||||
if self.backend == self.PGSQL:
|
||||
self.db.set_isolation_level(1) # go back to normal isolation level
|
||||
#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.db.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.cursor.execute( "alter table %s drop index %s"
|
||||
, (idx['tab'],idx['col']) )
|
||||
except:
|
||||
pass
|
||||
elif self.backend == self.PGSQL:
|
||||
print "dropping pg index ", idx['tab'], idx['col']
|
||||
# mod to use tab_col for index name?
|
||||
try:
|
||||
self.cursor.execute( "drop index %s_%s_idx"
|
||||
% (idx['tab'],idx['col']) )
|
||||
except:
|
||||
pass
|
||||
else:
|
||||
print "Only MySQL and Postgres supported so far"
|
||||
return -1
|
||||
if self.backend == self.PGSQL:
|
||||
self.db.set_isolation_level(1) # go back to normal isolation level
|
||||
#end def dropAllIndexes
|
||||
|
||||
def getLastInsertId(self):
|
||||
try:
|
||||
|
||||
Reference in New Issue
Block a user