class SubmitDriven
Same name in other branches
- 3.x modules/ajax_example/src/Form/SubmitDriven.php \Drupal\ajax_example\Form\SubmitDriven
- 4.0.x modules/ajax_example/src/Form/SubmitDriven.php \Drupal\ajax_example\Form\SubmitDriven
Submit a form without a page reload.
Hierarchy
- class \Drupal\ajax_example\Form\SubmitDriven extends \Drupal\Core\Form\FormBase
Expanded class hierarchy of SubmitDriven
1 string reference to 'SubmitDriven'
- ajax_example.routing.yml in ajax_example/
ajax_example.routing.yml - ajax_example/ajax_example.routing.yml
File
-
ajax_example/
src/ Form/ SubmitDriven.php, line 11
Namespace
Drupal\ajax_example\FormView source
class SubmitDriven extends FormBase {
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'ajax_example_autotextfields';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
// This container wil be replaced by AJAX.
$form['container'] = [
'#type' => 'container',
'#attributes' => [
'id' => 'box-container',
],
];
// The box contains some markup that we can change on a submit request.
$form['container']['box'] = [
'#type' => 'markup',
'#markup' => '<h1>Initial markup for box</h1>',
];
$form['submit'] = [
'#type' => 'submit',
// The AJAX handler will call our callback, and will replace whatever page
// element has id box-container.
'#ajax' => [
'callback' => '::promptCallback',
'wrapper' => 'box-container',
],
'#value' => $this->t('Submit'),
];
return $form;
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
}
/**
* Callback for submit_driven example.
*
* Select the 'box' element, change the markup in it, and return it as a
* renderable array.
*
* @return array
* Renderable array (the box element)
*/
public function promptCallback(array &$form, FormStateInterface $form_state) {
// In most cases, it is recommended that you put this logic in form
// generation rather than the callback. Submit driven forms are an
// exception, because you may not want to return the form at all.
$element = $form['container'];
$element['box']['#markup'] = "Clicked submit ({$form_state->getValue('op')}): " . date('c');
return $element;
}
}
Members
Title Sort descending | Modifiers | Object type | Summary |
---|---|---|---|
SubmitDriven::buildForm | public | function | |
SubmitDriven::getFormId | public | function | |
SubmitDriven::promptCallback | public | function | Callback for submit_driven example. |
SubmitDriven::submitForm | public | function |