DblogFilterForm::buildForm

public DblogFilterForm::buildForm(array $form, FormStateInterface $form_state)

public function buildForm(array $form, FormStateInterface $form_state) {
  $filters = dblog_filters();

  $form['filters'] = array(
    '#type' => 'details',
    '#title' => $this->t('Filter log messages'),
    '#open' => TRUE,
  );
  foreach ($filters as $key => $filter) {
    $form['filters']['status'][$key] = array(
      '#title' => $filter['title'],
      '#type' => 'select',
      '#multiple' => TRUE,
      '#size' => 8,
      '#options' => $filter['options'],
    );
    if (!empty($_SESSION['dblog_overview_filter'][$key])) {
      $form['filters']['status'][$key]['#default_value'] = $_SESSION['dblog_overview_filter'][$key];
    }
  }

  $form['filters']['actions'] = array(
    '#type' => 'actions',
    '#attributes' => array('class' => array('container-inline')),
  );
  $form['filters']['actions']['submit'] = array(
    '#type' => 'submit',
    '#value' => $this->t('Filter'),
  );
  if (!empty($_SESSION['dblog_overview_filter'])) {
    $form['filters']['actions']['reset'] = array(
      '#type' => 'submit',
      '#value' => $this->t('Reset'),
      '#limit_validation_errors' => array(),
      '#submit' => array('::resetForm'),
    );
  }
  return $form;
}