[SOLVED] add Hook to set default Dropdown-Select in form

[Peter Troeger]

Hi ?

I'm trying my hands on hooks and was hoping to figure out how to set the default value of a page-select-dropdown of a form, created with formBuilder, via a hook.

I want it to be dynamic, so I don't want to set it fixed in the formBuilder Menu.

I tried something like this, but I don't know what to set as method and whether I should return a page or an id:

$wire->addHookAfter('InputfieldPage::processInput', function($event) {
  if($event->object->name == 'job_waehlen') {
    $event->return = '1036';
  }
});

Any hints and help are greatly appreciated ?
Thanks!

- Peter

Edited December 13, 2018 by Peter Troeger
* Solved! :)

[flydev]

Hi,

you have to assign a page.

$wire->addHookAfter('InputfieldPage::processInput', function($event) {
    if($event->object->name == 'job_waehlen') {
        bd($event->return->value); // return 1019 (my test id page)
        $event->return->value = $this->pages->get(1); // will set you parent tree
        bd($event->return->value); // return 1 (root page)
    }
});

 

PS:  bd() call come from TracyDebugger

 

 

[Peter Troeger]

Hi flydev,

thanks for your Feedback!

It's not working for me. In my dropdown I have two pages. One has as a value '1033', the other '1036'.
The Dropdowns name is 'job_waehlen'.

Even when I put $event->return->value = $this->pages->get(1033); The Dropdown doesn't preselect anything.<

Is my method ('InputfieldPage::processInput') possibly the wrong one for a dropdown input field?

- Peter

[Peter Troeger]

I tried something different. And while it doen't work either, at least something happens ?

$wire->addHookBefore('InputfieldPage::render', function($event) {
  if($event->object->name == 'job_waehlen') {
	$event->object->set('defaultValue', '1033');
  }
});

I changed 'addHookAfter' to 'addHookBefore' and the method to 'InputfieldPage::render'. Now the Hook actually seems to trigger and so something.
So then I found out that there's a value called 'defaultValue', which I was able to change, but it doesn't seem to have an effect on my Dropdown. It still doesn't preselect anything. ?

[flydev]

1 hour ago, Peter Troeger said:

The Dropdown doesn't preselect anything

I understand now what you are trying to achieve.

try that :

$mypage= $pages->get(1036);

$wire->addHookBefore('InputfieldPage::render', function($event) use(&$mypage) {
    if($event->object->name !== 'job_waehlen') return;
    $inputfield = $event->object;
    $selectfield = $inputfield->getInputField();
    $selectfield->addOption($mypage->id, $mypage->title, array('selected' => 'selected'));
});

 

[Peter Troeger]

Awesome! That was it ? Thank you very much! ?

So I'm basically selecting the field, and then adding an Option to it. If it exists it just overwrites the existing option and if it doesn't, it just adds it to the dropdown. Right?