class Callbacks

Same name in this branch
  1. 9 core/modules/system/tests/modules/ajax_forms_test/src/Callbacks.php \Drupal\ajax_forms_test\Callbacks
Same name in other branches
  1. 8.9.x core/modules/system/tests/modules/ajax_forms_test/src/Callbacks.php \Drupal\ajax_forms_test\Callbacks
  2. 8.9.x core/modules/system/tests/modules/form_test/src/Callbacks.php \Drupal\form_test\Callbacks
  3. 10 core/modules/system/tests/modules/ajax_forms_test/src/Callbacks.php \Drupal\ajax_forms_test\Callbacks
  4. 10 core/modules/system/tests/modules/form_test/src/Callbacks.php \Drupal\form_test\Callbacks
  5. 11.x core/modules/system/tests/modules/ajax_forms_test/src/Callbacks.php \Drupal\ajax_forms_test\Callbacks
  6. 11.x core/modules/system/tests/modules/form_test/src/Callbacks.php \Drupal\form_test\Callbacks

Simple class for testing methods as Form API callbacks.

Hierarchy

Expanded class hierarchy of Callbacks

1 file declares its use of Callbacks
FormTestValidateForm.php in core/modules/system/tests/modules/form_test/src/Form/FormTestValidateForm.php

File

core/modules/system/tests/modules/form_test/src/Callbacks.php, line 10

Namespace

Drupal\form_test
View source 
class Callbacks {
    
    /**
     * Form element validation handler for 'name' in form_test_validate_form().
     */
    public function validateName(&$element, FormStateInterface $form_state) {
        $triggered = FALSE;
        if ($form_state->getValue('name') == 'element_validate') {
            // Alter the form element.
            $element['#value'] = '#value changed by #element_validate';
            // Alter the submitted value in $form_state.
            $form_state->setValueForElement($element, 'value changed by setValueForElement() in #element_validate');
            $triggered = TRUE;
        }
        if ($form_state->getValue('name') == 'element_validate_access') {
            $form_state->set('form_test_name', $form_state->getValue('name'));
            // Alter the form element.
            $element['#access'] = FALSE;
            $triggered = TRUE;
        }
        elseif ($form_state->has('form_test_name')) {
            // To simplify this test, just take over the element's value into $form_state.
            $form_state->setValueForElement($element, $form_state->get('form_test_name'));
            $triggered = TRUE;
        }
        if ($triggered) {
            // Output the element's value from $form_state.
            \Drupal::messenger()->addStatus(t('@label value: @value', [
                '@label' => $element['#title'],
                '@value' => $form_state->getValue('name'),
            ]));
            // Trigger a form validation error to see our changes.
            $form_state->setErrorByName('');
        }
    }

}

Members

Title Modifiers Object type Summary
Callbacks::validateName public function Form element validation handler for 'name' in form_test_validate_form().

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