[fw-db] Using a zend framework model question

I would like to use models which i never used before.
Usualy i am doing all DB related things inside my controller.
But i was thinking in my sleeples last night that using a model would be
much better :)
Is it possible to do something like this?
class someController extendes Zend_Controller {

indexActio(){
}
viewAction(){
there i would like to grab some method from my model...
}
editAction(){
there i would like to grab another method from model...
}
}

Model
******
class someModle extends Zend_db...{
protected $_name = 'news';
public function viewNews ($newsID){
return news
}
public function editNews($newsID){
edit news
}
.......

Thank you,
V
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