[PHP-DB] DB Class pointer as var in another class

[Gary Cornelisse]

We've been considering the following implementation of a class pointer
within another class.  Our goal here is to minimize the number of database
connections per function call.  It seems to work just fine, but I wanted to
post this up for comments.  PHP 4.1.1 doesn't seem to have a problem with
it.  We have a couple classes working this way in some of our beta code.
I've never seen anyone do this before so I just wanted to make sure we
weren't wandering into uncharted waters.

class my_class
{
var $test;
var $db_class;

function my_class($test)
{
$this-test = $test;
$this-db_class = new database_class(DB_NAME);
}

function get_db_info()
{
... use db here via $this-db_class ...
}
}

Thanks,
Gary



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Re: [PHP-DB] DB Class pointer as var in another class

[Gary Cornelisse]

I'll have to re-think extending the class with our database class.  In the
past they may not have worked well.  Admittedly, our classes were written
poorly.  But, now that we're massively redesigning, that may work very well.

Thanks for getting my brain-juices flowing again.

Gary

Gurhan Ozen [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Hi Gary,
 I didn't understand what you were actually trying to do here.. You stated
 that Our goal here is to minimize the number of database connections per
 function call. but seems like you are connecting to the database in the
 constructor? So each instance will automatically connect to the DB??
   Why don't you write a DB connection class and inherit it for every other
 class you need to write so that all of its functions will be available in
 the derived class as well and so that you won't have to call the class
 inside another class?

 Gurhan


 -Original Message-
 From: Gary Cornelisse [mailto:[EMAIL PROTECTED]]
 Sent: Thursday, March 14, 2002 12:47 PM
 To: [EMAIL PROTECTED]
 Subject: [PHP-DB] DB Class pointer as var in another class


 We've been considering the following implementation of a class pointer
 within another class.  Our goal here is to minimize the number of database
 connections per function call.  It seems to work just fine, but I wanted
to
 post this up for comments.  PHP 4.1.1 doesn't seem to have a problem with
 it.  We have a couple classes working this way in some of our beta code.
 I've never seen anyone do this before so I just wanted to make sure we
 weren't wandering into uncharted waters.

 class my_class
 {
 var $test;
 var $db_class;

 function my_class($test)
 {
 $this-test = $test;
 $this-db_class = new database_class(DB_NAME);
 }

 function get_db_info()
 {
 ... use db here via $this-db_class ...
 }
 }

 Thanks,
 Gary



 --
 PHP Database Mailing List (http://www.php.net/)
 To unsubscribe, visit: http://www.php.net/unsub.php




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