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+--- Thread: Schedule algorithm (/showthread.php?tid=20009)
Schedule algorithm - El Forum - 06-25-2009
[eluser]juan1904[/eluser]
Hi,
I'm working on a schedule algorithm for a hockeyleague and I'm almost done, but there is something that bugs me and keeps me awake at nights!
In my code I use require once 'blah.php'; to create different instances of a class called Schedule_team like this:
Quote:$arr = array();
foreach($team_array as $ta)
{
$arr[] = new Schedule_team($ta['name'])
}
$team_array is an array with some information about every team.
Schedule_team holds information about how many times a team has met the others.
I wonder if there is any smart way to get around this "require once" and "new Scheldule_team();" problem of mine.
Schedule algorithm - El Forum - 06-25-2009
[eluser]Pascal Kriete[/eluser]
How about a factory?
Code:
class Schedule_team
{
// Stores objects
private static $_teams = array();
// Regular class variables
public $name;
// Constructor - factory does most of the work
public function __construct() {}
// Factory
public static function factory($name)
{
if ( ! isset(Schedule_team::$_teams[$name]))
{
$team = new Schedule_team();
$team->name = $name;
Schedule_team::$_teams[$name] = $team;
}
else
{
$team = Schedule_team::$_teams[$name];
}
return $team;
}
}Make that a library, and use it:
Code:
$this->load->library('schedule_team');
$a = Schedule_team::factory('ateam');
$b = Schedule_team::factory('bteam');
echo $a->name, ' ', $b->name;In it's current form it will also return a team if you already have on of the same name. Depending on how complex this class is you may want to separate the factory from the actual schedule_team class.