Update of /cvsroot/modeling/ProjectModeling/Modeling/DatabaseAdaptors/MySQLAdaptorLayer
In directory sc8-pr-cvs1:/tmp/cvs-serv25998/Modeling/DatabaseAdaptors/MySQLAdaptorLayer
Added Files:
mysql_utils.py
Log Message:
Forgot to add this file when the fix for bug #857803 was submitted
--- NEW FILE: mysql_utils.py ---
#-----------------------------------------------------------------------------
#
# Modeling Framework: an Object-Relational Bridge for python
# (c) 2001, 2002, 2003 Sebastien Bigaret
#
# This file is part of the Modeling Framework.
#
# The Modeling Framework 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.
#
# The Modeling Framework 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 the Modeling Framework; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#-----------------------------------------------------------------------------
"""
MySQL Adaptor Layer's utils
Central point for determining MySQL specifics, like the version of the
mysql server in use.
CVS information
$Id: mysql_utils.py,v 1.1 2004/01/20 20:26:42 sbigaret Exp $
"""
__version__='$Revision: 1.1 $'[11:-2]
import os
import MySQLdb
def mysql_server_version():
"""
Returns the version of the mysql server currently in use. If the environment
variable MDL_MYSQL_SERVER_VERSION is set, it returns the information it
contains, otherwise it calls MySQLdb.get_client_info().
Acceptable values for ``MDL_MYSQL_SERVER_VERSION`` are e.g: 3.23, 4,
4.0.11a-gamma.
Return value:
A 4-values tuple: (VERSION, PATCH_LEVEL, SUBLEVEL, EXTRA_VERSION)
E.g. (4,0,11,'a-gamma')
Note that the env. is checked before MySQLdb.get_client_info() is called,
because on some installation the latter reports a different version than the
server's one (this happens e.g. when the client python adaptor is linked to
an older mysql-library); in such cases, the env.variable allows the user to
explicitly set the version of the mysql db-server.
"""
s = os.environ.get('MDL_MYSQL_SERVER_VERSION','')
if not s:
s=MySQLdb.get_client_info()
v_list = s.split('.', 3)
if len(v_list)==1: v_list+=['0', '']
if len(v_list)==2: v_list+=['']
version = int(v_list[0])
patch_level = int(v_list[1])
s = v_list[2]
i=0
for i in range(len(s)):
if not s[i].isdigit():
break
if s[i].isdigit(): i+=1
if i == 0:
sublevel = 0
else:
sublevel = int(s[:i])
extra_version = s[i:]
return (version, patch_level, sublevel, extra_version)
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