Drupal 8 user_filter_form

Question

In drupal 7 i used this hook to implement user filter form (People->Filter). This hook doesn't work in drupal 8. Any suggestions?

/**
 * Implements hook_form_FORM_ID_alter().
 */
function cl_form_user_filter_form_alter(&$form, &$form_state, $form_id) {
  //code here
}

Well, i added this function to my module, but no results at all. Am i doing something wrong?

function cl_form_views_exposed_form_alter(&$form, &$form_state, $form_id)
{
  $form['actions']['find_users']  = array(
          '#type' => 'submit',
          '#value' => t('Check for users'),
          '#submit' => array('cl_find_users'),
        );
}

Answer 1

The form "user_filter_form" you are trying to alter doesn't exist. In D8 /admin/people is a view. You can configure the view including the exposed filter here:

/admin/structure/views/view/user_admin_people

You can still list peoples without Views. When you disable user_admin people the user module displays a basic entity list, but this doesn't contain a filter form anymore like it did in D7. Probably not many will notice, because D8 enables the admin views for content and people by default.

Answer 2

This hook still works check the documentation.

Use \Drupal\Core\Form\FormStateInterface $form_state instead of &$form_state, make sure your module is enabled and clear your cache.