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<?php
namespace Drupal\form_test\Form;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
class FormTestVerticalTabsAccessForm extends FormBase {
public function getFormId() {
return 'form_test_vertical_tabs_access_form';
}
public function buildForm(array $form, FormStateInterface $form_state) {
$form['vertical_tabs1'] = [
'#type' => 'vertical_tabs',
];
$form['tab1'] = [
'#type' => 'fieldset',
'#title' => t('Tab 1'),
'#collapsible' => TRUE,
'#group' => 'vertical_tabs1',
];
$form['tab1']['field1'] = [
'#title' => t('Field 1'),
'#type' => 'checkbox',
'#default_value' => TRUE,
];
$form['tab2'] = [
'#type' => 'fieldset',
'#title' => t('Tab 2'),
'#collapsible' => TRUE,
'#group' => 'vertical_tabs1',
];
$form['tab2']['field2'] = [
'#title' => t('Field 2'),
'#type' => 'textfield',
'#default_value' => 'field2',
];
$form['fieldset1'] = [
'#type' => 'fieldset',
'#title' => t('Fieldset'),
];
$form['fieldset1']['field3'] = [
'#type' => 'checkbox',
'#title' => t('Field 3'),
'#default_value' => TRUE,
];
$form['container'] = [
'#type' => 'container',
];
$form['container']['field4'] = [
'#type' => 'checkbox',
'#title' => t('Field 4'),
'#default_value' => TRUE,
];
$form['container']['subcontainer'] = [
'#type' => 'container',
];
$form['container']['subcontainer']['field5'] = [
'#type' => 'checkbox',
'#title' => t('Field 5'),
'#default_value' => TRUE,
];
$form['vertical_tabs2'] = [
'#type' => 'vertical_tabs',
];
$form['tab3'] = [
'#type' => 'fieldset',
'#title' => t('Tab 3'),
'#collapsible' => TRUE,
'#group' => 'vertical_tabs2',
];
$form['tab3']['field6'] = [
'#title' => t('Field 6'),
'#type' => 'checkbox',
'#default_value' => TRUE,
];
$form['actions'] = [
'#type' => 'actions',
];
$form['actions']['submit'] = [
'#type' => 'submit',
'#value' => t('Submit'),
];
return $form;
}
public function validateForm(array &$form, FormStateInterface $form_state) {
$values = $form_state
->getValues();
if (empty($values['field1'])) {
$form_state
->setErrorByName('tab1][field1', t('This checkbox inside a vertical tab does not have its default value.'));
}
if ($values['field2'] != 'field2') {
$form_state
->setErrorByName('tab2][field2', t('This textfield inside a vertical tab does not have its default value.'));
}
if (empty($values['field3'])) {
$form_state
->setErrorByName('fieldset][field3', t('This checkbox inside a fieldset does not have its default value.'));
}
if (empty($values['field4'])) {
$form_state
->setErrorByName('container][field4', t('This checkbox inside a container does not have its default value.'));
}
if (empty($values['field5'])) {
$form_state
->setErrorByName('container][subcontainer][field5', t('This checkbox inside a nested container does not have its default value.'));
}
if (empty($values['field5'])) {
$form_state
->setErrorByName('tab3][field6', t('This checkbox inside a vertical tab whose fieldset access is allowed does not have its default value.'));
}
}
public function submitForm(array &$form, FormStateInterface $form_state) {
$this
->messenger()
->addStatus(t('The form submitted correctly.'));
}
}