Selectable pages from parent page field

[fredbob]

Hi,

I have a field on a page that I am trying to set the selectable pages to the parent pages, multi page field.

-- Parent (has page field with pages I want to select from)

-- -- Child (has field that needs to be able to select pages from the parents page field)

 

I have tried using custom PHP selectors, but in the new version of processwire the custom PHP selector has been changed into a hook. I am not sure how to write it, any help would be appreciated.

 

Quote

 

Add the following hook to a /site/ready.php file and modify per your needs. The hook should find and return selectable pages in a PageArray.

$wire->addHookAfter('InputfieldPage::getSelectablePages', function($event) {
  if($event->object->name == 'result_judge_challenge') {
    $event->return = $event->pages->find('your selector here');
  }
});

If you need to know the page being edited, it is accessible from: $event->arguments('page');

 

 

Cheers.

[kongondo]

I have no idea why you have such a setup but anyway, here goes. As per the instructions, your Hook needs to return a PageArray. This is untested:

$wire->addHookAfter('InputfieldPage::getSelectablePages', function($event) {
  if($event->object->name == 'result_judge_challenge') {
	$page = $event->arguments('page');	
	$event->return = $page->parent->parent_multi_page_field;// this should return a PageArray
  }
});

You might want to add checks to see if the parent page actually has items in its page field.

Edited February 5, 2017 by kongondo

[fredbob]

That worked perfectly thank you!

I was trying to do it without putting it into a variable first like this

$event->return = $page->parent->parent_multi_page_field;

[Martin Muzatko]

Hello! I'm trying to have a custom page selector as well, but when I  select a pageArray for a select field, I get the following error:

 

 

[Martin Muzatko]

I found out: Even if the select is a MultiPage Select, I still get the error.

 

[LostKobrakai]

@Martin Muzatko Could you please share the code you're using. 

[Martin Muzatko]

Hello @LostKobrakai.

As documented for custom selectors for PW 3+:

<?php
$wire->addHookAfter('InputfieldPage::getSelectablePages', function($event) {
    if($event->object->name == 'ticket') {
        $page = $event->arguments('page');
        $result = $page->parent()->parent()->children('template=event-tickets')->children();
        print_r($result);
        $event->return = $result;
    }
});

This selection happens from within a Registration. See example structure here: 

Thank you already!

[LostKobrakai]

// Page > Page > Page > PageArray > children()
// There's no PageArray::children() method
$result = $page->parent()->parent()->children('template=event-tickets')->children();

// Use this:
$result = $page->parent()->parent()->child('template=event-tickets')->children();

// Or even
$event = $page->closest('template=event');
$tickets = $pages->find('has_parent=$event, parent.template=event-tickets');

 

[Martin Muzatko]

Ugh! This makes sense and it works perfectly. The debug message looked like there was a problem with the result being a PageArray, not that PageArray has no children method. Thank you a lot @LostKobrakai!

[LostKobrakai]

To be honest I've no idea where the error message did come from. It's certainly highlighting a some different thing.