Abstract Model

[eluser]Moon 111[/eluser]
I have an abstract model and a few classes that extend them, but when I try to load the class that extends it, it says the parent class can't be found.

Let me show you what I mean:

Code:

Abstract Class Blah Extends Model {

    public function __construct() {

        parent::__construct();
    }

    abstract public function test();
}

Code:

Class BlahBlah Extends Blah {

    public function test() {

        // Do something
    }
}

And now it tells me it can't find Class Blah (I can't just load it as it's an abstract class...)

What do I do?

By the way, hasn't CI heard of autoload???