Hi I Use DataObjectManager Modul

And I create a realy simple Gallery, and everything works perfect, but now i want to make some kind of Holder lets say a KatalogImageHolder.php where the children are KatalogImagePage, where I want to show only the first Image of the KatalogImagePage. And I have no Idea how can I do that stuff :) (I Know this is not so really appended from DataObjectManager Modul)

Please Help me to get it work

KatalogImageHolder.php looks like this

class KatalogImageHolder extends Page {

	static $db = array(
	);

	static $has_one = array(
	);
	
	static $allowed_children = array('KatalogImagePage');
}
….

and KatalogImagePage.php like this

class KatalogImagePage extends Page
{
	static $has_many = array (
		'KatalogImages' => 'KatalogImage'
	);
	
    // Here go, I don't know how to make it run,   
    public  function getFirstPhoto(){
			return $this->KatalogImages[0]; //that doesn't work :)
    }
 
	
...

@UncleCheese. My Post has been duplicated, please delete one of them

In the template:

$KatalogImages.First

In the controller:

$this->KatalogImages()->First();

Oh men, @UncleCheese :)

I knowed, I've read about this, but many , many months ago ;)

It is working now, thanks for your help