Tree Traversal for Content

[David Beesley]

Hi All,

First time poster, so please go easy on me.

I am trying to write a small block of code so that if that if the page I am on doesn't have a "Hero Image" it will traverse up the tree until it finds a page that does have one.

I am attempting to utilise $page->parentsUntil() to do so. Am I on the right track?

if (!empty($page->hero_gallery)) {
	$hero_images = $page->hero_gallery;
} else {
	$hero_images = $page->parentsUntil("hero_gallery!=''")->hero_gallery;
}

This code is currently returning nothing

[ottogal]

Welcome to the community!

Have a read of  this thread. So you should try something like this:

if (count($page->hero_gallery)>0) {
	$hero_images = $page->hero_gallery;
} else {
	$hero_images = $page->parentsUntil("count(hero_gallery)>0")->hero_gallery;
}

(Just written in the browser, didn't try it myself.)

[LostKobrakai]

No need for the if statement here:

$hero_images = $page->closest("hero_gallery.count>0")->hero_gallery;

(Also the count selector is incorrect above)

[David Beesley]

Perfect LK.

Thanks very much

[ottogal]

@LostKobrakai

Quote

the count selector is incorrect above

It should be like this, shouldn't it?

$page->parentsUntil("hero_gallery.count>0")

If not, could you explain it a bit further?

[LostKobrakai]

Yeah, the selector should be like mine in both our examples.