Add unique inputfield to LoginRegister registration form.

[salmiak]

I'm trying to add a (required) unique text field to my registration form using the LoginRegister module. (Like e-mail and user name)

I tried using FieldtypeTextUnique but of course its's not that simple. That just adds the user with an empty field if it exists already.

I figure I have to hook a function somewhere or something but don't know how to go about that. 

[elabx]

As for making the field required, from what I can tell from the source code you need to set the field in the user template as required so it is also required in the registration form. (but I also see that it checks if the field is InputfieldText)

I guess you could also make an after hook in the buildForm method, and traverse the form to set the field you want as required, try placing this in site/ready.php and let me know if it worked:

$this->addHookAfter('LoginRegister::buildRegisterForm', function($event) { 
  $form = $event->return;
  $field = $form->get('the_unique_text_field_name');
  $field->attr('required','required');
  $event->return = $form;
});