Last active
March 1, 2023 00:00
-
-
Save daggerhart/37863638ed56ad73786474884290db1c to your computer and use it in GitHub Desktop.
Drupal 9, Webform 6 - custom element w/ ajax in form
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?php | |
namespace Drupal\ocf_integration_webform\Plugin\WebformElement; | |
use Drupal\Core\Form\FormStateInterface; | |
use Drupal\webform\Element\WebformAjaxElementTrait; | |
use Drupal\webform\Plugin\WebformElementBase; | |
use Symfony\Component\HttpFoundation\Request; | |
/** | |
* @WebformElement( | |
* id = "ajax_form_test", | |
* label = @Translation("Ajax form test"), | |
* description = @Translation("Provides a form element for a choosing an Open Collective event ticket."), | |
* category = @Translation("Options elements"), | |
* ) | |
*/ | |
class AjaxInWebformElement extends WebformElementBase { | |
use WebformAjaxElementTrait; | |
protected function defineDefaultProperties() { | |
return [ | |
'field_1' => '', | |
'field_2' => [], | |
] + parent::defineDefaultProperties(); | |
} | |
public function form(array $form, FormStateInterface $form_state) { | |
$form = parent::form($form, $form_state); | |
$form['field_1'] = [ | |
'#type' => 'select', | |
'#title' => $this->t('Field 1'), | |
"#validated" => TRUE, | |
'#options' => [ | |
'one' => 'One', | |
'two' => 'Two' | |
], | |
// When the event_id changes, update the options field values. | |
'#ajax' => [ | |
'callback' => '\Drupal\ocf_integration_webform\Plugin\WebformElement\AjaxInWebformElement::ajaxCheckboxes', | |
'disable-refocus' => TRUE, | |
'event' => 'change', | |
'wrapper' => 'field_2_wrapper', | |
'progress' => [ | |
'type' => 'throbber', | |
'message' => t('Verifying entry...'), | |
], | |
], | |
]; | |
$form['field_2'] = [ | |
'#type' => 'checkboxes', | |
'#title' => $this->t('Field 2'), | |
'#options' => [ | |
'check_one' => 'Check One', | |
'check_two' => 'Check Two', | |
], | |
'#prefix' => '<div id="field_2_wrapper">', | |
'#suffix' => '</div>', | |
]; | |
return $form; | |
} | |
/** | |
* Ajax callback. | |
*/ | |
public static function ajaxCheckboxes(array &$form, FormStateInterface $form_state, Request $request) { | |
$form['field_2'] = [ | |
'#type' => 'checkboxes', | |
'#title' => t('Field 2 - Changed'), | |
'#options' => [ | |
'check_three' => 'Check Three - changed', | |
'check_found' => 'Check Four - changed', | |
], | |
'#prefix' => '<div id="field_2_wrapper">', | |
'#suffix' => '</div>', | |
]; | |
return $form['field_2']; | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment