Hook to change title after page is saved

[Deyan 4]

Hi all,

this is my first time to try to use hooks and I'm a bit lost here.

What I need is to make a hook that changes title after page is saved. Basically it only adds selected date (field: cal_start_date) to title after page has been published so the end title looks like "2019-05-15 My title". This part works ok (though I think my code is bad).

The problem is when I edit page and hit Save button, it changes title to "2019-05-15 2019-05-15 My title" which is not what I want. It should not change title after edits.

Here is the code so far:

public function init() {
		$this->pages->addHookAfter('save', $this, 'changeTitle');
	}

	protected function changeTitle($event) {
		$page = $event->arguments(0);
		$savedTitle = $page->get('title');
		$t = wire()->templates->get($page->template);
		if($t == 'calender_item' && $page->is(Page::statusUnpublished)) {
			// if page is unpublished
			return;
		}  else {
			$title = $page->get('title');
			$date = wireDate('Y-m-d', $page->cal_start_date);
			$page->of(false);
			$page->title = $date.'-'.$title;
			$page->save('title');
			$this->message("New saved title is {$page->title}");
		}

	}

Any help is welcome.

[dragan 1,730]

What do you need this for? Is it just for the backend, i.e. what you see in the page tree? If that's the purpose of your hook, you could use custom page list titles. There's a core method for that in advanced mode, and several modules.

[Deyan 4]

Aha, thank you very much. I need this only for admin part.

I found some old module that does exactly what I need PageListBetterLabels. It trows some errors but I fixed it.

Again, thank you & pozdrav.