public static function CalendarSystemsDateList::valueCallback in Calendar Systems 8.3

Validates the date type to adjust 12 hour time and prevent invalid dates. If the date is valid, the date is set in the form.

Overrides Datelist::valueCallback

File

src/Element/CalendarSystemsDateList.php, line 20

Class

CalendarSystemsDateList

Plugin annotation @FormElement("datelist");

Namespace

Drupal\calendar_systems\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  $parts = $element['#date_part_order'];
  $increment = $element['#date_increment'];
  $date = NULL;
  if ($input !== FALSE) {
    $return = $input;
    if (empty(static::checkEmptyInputs($input, $parts))) {
      if (isset($input['ampm'])) {
        if ($input['ampm'] == 'pm' && $input['hour'] < 12) {
          $input['hour'] += 12;
        }
        elseif ($input['ampm'] == 'am' && $input['hour'] == 12) {
          $input['hour'] -= 12;
        }
        unset($input['ampm']);
      }
      $timezone = !empty($element['#date_timezone']) ? $element['#date_timezone'] : NULL;
      try {
        $date = DrupalDateTime::createFromArray($input, $timezone);
      } catch (Exception $e) {
        $form_state
          ->setError($element, t('Selected combination of day and month is not valid.'));
      }
      if ($date instanceof DrupalDateTime && !$date
        ->hasErrors()) {
        static::incrementRound($date, $increment);
      }
    }
  }
  else {
    $return = array_fill_keys($parts, '');
    if (!empty($element['#default_value'])) {
      $date = $element['#default_value'];
      if ($date instanceof DrupalDateTime && !$date
        ->hasErrors()) {
        static::incrementRound($date, $increment);
        foreach ($parts as $part) {
          switch ($part) {
            case 'day':
              $format = 'j';
              break;
            case 'month':
              $format = 'n';
              break;
            case 'year':
              $format = 'Y';
              break;
            case 'hour':
              $format = in_array('ampm', $element['#date_part_order']) ? 'g' : 'G';
              break;
            case 'minute':
              $format = 'i';
              break;
            case 'second':
              $format = 's';
              break;
            case 'ampm':
              $format = 'a';
              break;
            default:
              $format = '';
          }
          $return[$part] = $date
            ->format($format);
        }
      }
    }
  }
  $timezone = isset($timezone) ? $timezone : NULL;
  $calendar = _calendar_systems_factory($timezone, 'en');
  if ($calendar && $date && $date
    ->format('Y') < 1600) {
    $ok = $calendar
      ->parse($date
      ->format('Y m d H i s'), 'Y m d H i s');
    if (!$ok) {
      $form_state
        ->setError($element, t('Selected combination of day and month is invalid.'));
    }
    else {
      $date = DrupalDateTime::createFromTimestamp($calendar
        ->getTimestamp(), $timezone);
    }
  }
  $return['object'] = $date;
  return $return;
}