function system_user_timezone in Drupal 8

Same name and namespace in other branches

1. 7 modules/system/system.module \system_user_timezone()

Add the time zone field to the user edit and register forms.

@internal This functions exists only to be used by System module's form alters which have been removed.

See also

https://www.drupal.org/node/3113062

File

core/modules/system/system.module, line 827

Configuration system that lets administrators modify the workings of the site.

Code

function system_user_timezone(&$form, FormStateInterface $form_state) {
  $user = \Drupal::currentUser();
  $account = $form_state
    ->getFormObject()
    ->getEntity();
  $form['timezone'] = [
    '#type' => 'details',
    '#title' => t('Locale settings'),
    '#open' => TRUE,
    '#weight' => 6,
  ];
  $form['timezone']['timezone'] = [
    '#type' => 'select',
    '#title' => t('Time zone'),
    '#default_value' => $account
      ->getTimezone() ? $account
      ->getTimezone() : \Drupal::config('system.date')
      ->get('timezone.default'),
    '#options' => system_time_zones($account
      ->id() != $user
      ->id(), TRUE),
    '#description' => t('Select the desired local time and time zone. Dates and times throughout this site will be displayed using this time zone.'),
  ];
  $user_input = $form_state
    ->getUserInput();
  if (!$account
    ->getTimezone() && $account
    ->id() == $user
    ->id() && empty($user_input['timezone'])) {
    $form['timezone']['#attached']['library'][] = 'core/drupal.timezone';
    $form['timezone']['timezone']['#attributes'] = [
      'class' => [
        'timezone-detect',
      ],
    ];
  }
}