How to add a markup field to a repeater item?

[Jonathan Lahijani]

I'm trying to add a markup field to a repeater item.  I would think to use ProcessPageEdit::buildFormContent however that only executes when a page being edited is loaded, not when a repeater item is expanded.

What is the correct hook that would allow me to use the form API and insert a markup field somewhere in the repeater item?

[szabesz]

Hello,

Maybe this can be a good starting point: https://processwire.com/talk/topic/21756-field-access-on-runtime/?do=findComment&comment=187094

 

[elabx]

I would try InputfieldWrapper::render since the repeater items are wrappers themselves ? but not sure super.

[Jonathan Lahijani]

On 12/5/2023 at 7:46 AM, elabx said:

I would try InputfieldWrapper::render since the repeater items are wrappers themselves ? but not sure super.

As far as I can tell, that's the way to do it.

Assuming your repeater field is called 'my_repeater_field' and it contains a field called 'foo' that you want to add a make-shift markup field above, here's what you'd do:

$wire->addHookAfter('InputfieldWrapper::render', function(HookEvent $event) {
  if(!$event->object->children->count) return;
  if($event->object->children[0]->name!="my_repeater_field") return;
  $event->return = str_replace(
    "<li class='Inputfield InputfieldText Inputfield_foo_repeater",
    "
    <li class='Inputfield'>
        <label class='InputfieldHeader'>
            my custom repeater markup field
        </label>
        <div class='InputfieldContent'>
            content goes here
        </div>
    </li>
    <li class='Inputfield InputfieldText Inputfield_foo_repeater",
    $event->return
  );
});