DateTimeItemInterface::DATETIME_STORAGE_FORMAT, ] + parent::defaultSettings(); } /** * {@inheritdoc} */ public function viewElements(FieldItemListInterface $items, $langcode) { // @todo Evaluate removing this method in // https://www.drupal.org/node/2793143 to determine if the behavior and // markup in the base class implementation can be used instead. $elements = []; foreach ($items as $delta => $item) { if (!empty($item->date)) { /** @var \Drupal\Core\Datetime\DrupalDateTime $date */ $date = $item->date; $elements[$delta] = $this->buildDate($date); } } return $elements; } /** * {@inheritdoc} */ protected function formatDate($date) { $format = $this->getSetting('date_format'); $timezone = $this->getSetting('timezone_override') ?: $date->getTimezone()->getName(); return $this->dateFormatter->format($date->getTimestamp(), 'custom', $format, $timezone != '' ? $timezone : NULL); } /** * {@inheritdoc} */ public function settingsForm(array $form, FormStateInterface $form_state) { $form = parent::settingsForm($form, $form_state); $form['date_format'] = [ '#type' => 'textfield', '#title' => $this->t('Date/time format'), '#description' => $this->t('See the documentation for PHP date formats.'), '#default_value' => $this->getSetting('date_format'), ]; return $form; } /** * {@inheritdoc} */ public function settingsSummary() { $summary = parent::settingsSummary(); $date = new DrupalDateTime(); $this->setTimeZone($date); $summary[] = $date->format($this->getSetting('date_format'), $this->getFormatSettings()); return $summary; } }