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# Copyright (C) 2004 Joern Thyssen <jth@gnubg.org>
# Copyright (C) 2004-2013 the AUTHORS
# 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 3 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, see <https://www.gnu.org/licenses/>.
#
# $Id: database.py,v 1.35 2019/10/28 21:18:50 plm Exp $
#
connection = 0
def PyMySQLConnect(database, user, password, hostname):
global connection
try:
import MySQLdb
except ImportError:
# See if pymsql (pure Python replacement) is available. Works on MS
# Windows
import pymysql as MySQLdb
hostport = hostname.strip().split(':')
try:
mysql_host = hostport[0]
except IndexError:
mysql_host = 'localhost'
try:
mysql_portstr = hostport[1]
try:
mysql_port = int(mysql_portstr)
except ValueError:
return -1
except IndexError:
mysql_port = 3306
try:
connection = MySQLdb.connect(
host=mysql_host, port=mysql_port, db=database, user=user, passwd=password)
return 1
except Exception:
# See if mysql is there
try:
connection = MySQLdb.connect(
host=mysql_host, port=mysql_port, user=user, passwd=password)
# See if database present
cursor = connection.cursor()
r = cursor.execute(
'show databases where `Database` = "' + database + '";')
if (r != 0):
return -2 # failed
cursor.execute('create database ' + database)
connection = MySQLdb.connect(
host=mysql_host, port=mysql_port, db=database, user=user, passwd=password)
return 0
except Exception:
return -1 # failed
return connection
def PyPostgreConnect(database, user, password, hostname):
global connection
import pgdb
postgres_host = hostname.strip()
try:
connection = pgdb.connect(
host=postgres_host, user=user, password=password, database=database)
return 1
except Exception:
# See if postgres is there
try:
# See if database present
connection = pgdb.connect(
host=postgres_host, user=user, password=password, database='postgres')
cursor = connection.cursor()
cursor.execute(
'select datname from pg_database where datname=\'' + database + '\'')
r = cursor.fetchone()
if (r is not None):
return -2 # database found
cursor.execute('END')
cursor.execute('create database ' + database)
connection = pgdb.connect(
host=postgres_host, database=database, user=user, password=password)
return 0
except Exception:
return -1 # failed
return connection
def PySQLiteConnect(dbfile):
global connection
from sqlite3 import dbapi2 as sqlite
connection = sqlite.connect(dbfile)
return connection
def PyDisconnect():
global connection
try:
connection.close()
except Exception:
pass
def PySelect(str):
global connection
cursor = connection.cursor()
try:
cursor.execute("SELECT " + str)
except Exception:
return 0
all = list(cursor.fetchall())
if (len(all) > 0):
titles = [cursor.description[i][0]
for i in range(len(cursor.description))]
all.insert(0, titles)
return all
def PyUpdateCommand(stmt):
global connection
cursor = connection.cursor()
cursor.execute(stmt)
def PyUpdateCommandReturn(stmt):
global connection
cursor = connection.cursor()
cursor.execute(stmt)
return list(cursor.fetchall())
def PyCommit():
global connection
connection.commit()
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