Repeater Item with Page Reference Field selecting Repeater Items (including itself)

[t0b1]

Hello there, and thanks for ProcessWire!

I'm getting to know ProcessWire while doing my first project using it and I really like it so far.
The challenge I'm facing right now is the following:

I have a One-Pager using fullpage.js, realized as a single PW-Page containing a Repeater Field where each Repeater Item is one Section.
Some Sections are supposed to have a little menu at the Top which references/links to different Sections of the Website, so I wanted to use a Checkbox Field "Top Menu" to decide if a Section gets a Menu and a Page Reference Field to choose the different Sections (Repeater Items) it should contain.
I've already accomplished this by pasting the following code into /site/ready.php:

 

$wire->addHookAfter('InputfieldPage::getSelectablePages', function($event) {
    if($event->object->hasField == 'top_menu_entries') {
        $page = $event->arguments('page');
        if($page instanceof RepeaterPage) $page = $page->getForPage();
        $event->return = $page->;
    }
});

 

The only problem that still remains is that when I select the Entry of the Repeater Item itself it doesnt save the selection, meaning after I saved it's unselected again.
On some Sections I do want a Menu-Entry for the Section itself though (which would be styled differently and not link anywhere) for Continuity-Reasons, any ideas on how to achieve that?

[t0b1]

2 minutes ago, t0b1 said:

 

$wire->addHookAfter('InputfieldPage::getSelectablePages', function($event) {
    if($event->object->hasField == 'top_menu_entries') {
        $page = $event->arguments('page');
        if($page instanceof RepeaterPage) $page = $page->getForPage();
        $event->return = $page->;
    }
});

The last line was supposed to be $event->return = $page->fullpage_sections;
fullpage_sections is my Repeater Field