Is descendant?

[Sinmok]

Hello all,

Probably a silly question..but I'm having trouble figuring out if a page is a descendant of another page.

Let's assume I've got a page currently referenced as $section. I need to know whether $page (current page) is a descendant of $section, preferably returning a true/false value.

Does anyone know how to accomplish this?

Something like this would be solid:

if($page->isDescendant($section)){
  //$page is a descendant of the $section node
}

//OR

if($section->hasDescendant($page)){
    //$section is an ancestor of $page
{

EDIT:

In the end, I got it working using the following code.

$page->parents("id=$section->id")->first()->id == $section->id

This is probably not the best of solutions though so I'm interested in hearing yours.

Cheers

[kongondo]

has_parent....

http://processwire.com/api/selectors/

http://cheatsheet.processwire.com/

[Sinmok]

An example would be helpful, as I can't get a working solution with has_parent within find().

[Soma]

My take

if($page->parents->has($section)) ...

if($section->find("id=$page")->count()) ...

// direct parent-child

if($section->children("id=$page")->count()) ...

if($page->parent === $section) ...