As a newbie developer, the easiest way for me to connect to MySQL is to
> just copy & paste the connection commands into each funtion I write.
> However, I know that's far from ideal, and consumes more time than its
> worth. I would like to create a MySQL connection function that I can just
> call up whenever I need it from within an other function.
I like to use the following style of code. Since there will be
passwords, the connection strings should be somewhat protected. Put
them in a separate file that can be controlled. Here's my sample code.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
#! /usr/bin/python
# sqlconnect.py
import MySQLdb as SQLdb
db_parms = {
'regular': {
'host': 'localhost',
'user':'regular_user',
'passwd':'password',
'db':'some_database',
},
'premium': {
'host':'localhost',
'user':'premium_user',
'passwd':'password',
'db': 'SGSG02',
},
"super": {
'host': 'localhost',
'unix_socket': '/var/lib/superdb/mysql.sock',
'user':'super_user',
'passwd':'password',
'db':'some_database',
},
}
def connect( parm_name):
parms = db_parms[parm_name]
return SQLdb.connect( **parms)
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Use a dictionary to save the connect parameters. Different users and
circumstances can require different parameters. To use this code
import sqlconnect as sql
conn = sql.connect('regular')
# then get a cursor so that you can do something to the database
curs = conn.Cursor()
curs.execute(Some_SQL_Command)
results = curs.fetchall()
curs.close()
Your example code seems to view getting a connection and a cursor as
closely related. Typically, a connection is kept for the life of the
application process and cursors are created, used, and closed as needed.
--
Lloyd Kvam
Venix Corp
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