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Data Model Questions /

accessing grandparent


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bennettpr

Community Member, 37 Posts

27 March 2009 at 11:20am

Edited: 27/03/2009 11:21am

Hi all,

I have some parent and grandparent checking to do.

Parent checking is as so (in Page model):

function getParent(){
      return ($this->Parent())? $this->Parent()->Title : false;
}

This works fine.

Grandparent checking is as so (in page model)

function getGrandparent(){
      if($this->Parent()->Parent()){
         return $this->Parent()->Parent()->Title;
      }
      else{
         return false;
      }
}

Grandparent checking fails with the following error:

"Call to a member function Children() on a non-object "

Now, the class tree should be:
BookHolder -> BookList -> BookPage

I've set up BookList to have BookHolder as a parent, so a call from a bookpage, which sits in a booklist (which belongs to a bookholder) should return the title of the BookHolder page?

Or am I missing something?

Happy to clarify more if required,
Paul