How to reference the instantiating class

Question

Currently I have my controller instantiating a model class. Every time I create this class I need to set the logged in user's info in the model. I feel like there is a more elegant way of doing this, but I'm not sure how to do it :-(

Here is an example of the code:

$leadModel = new Application_Model_DbTable_Leads; $leadModel->user = $this->user;

What I would like to do from inside the model I'm creating is access the user using something like this (I know this only applies to classes that are extending other classes):

$user_id = $this::parent->user;

Thanks so much!

You may want to read up on dependancy injection. Passing around the items the model requires, so to speak. — jlindenbaum
– jlindenbaum, Commented Aug 27, 2010 at 17:34

Sjoerd · Accepted Answer · 2010-08-27 17:25:03Z

This is usually done using a constructor parameter:

class Application_Model_DbTable_Leads { public function __construct($user) { $this->user = $user; } } ... $a = new Application_Model_DbTable_Leads($user);

There is no way to get a reference to the instantiating class.

It's possible to lookup an object reference with the us2.php.net/debug_backtrace function, but you definitely shouldn't be doing it that way

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