function form_process_date

Expands a date element into year, month, and day select elements.

Related topics

File

drupal/core/includes/form.inc, line 2993

Functions for form and batch generation and processing.

Code

function form_process_date($element) {

  // Default to current date
  if (empty($element['#value'])) {
    $element['#value'] = array(
      'day' => format_date(REQUEST_TIME, 'custom', 'j'),
      'month' => format_date(REQUEST_TIME, 'custom', 'n'),
      'year' => format_date(REQUEST_TIME, 'custom', 'Y'),
    );
  }
  $element['#tree'] = TRUE;

  // Determine the order of day, month, year in the site's chosen date format.
  $format = config('system.date')
    ->get('formats.short.pattern');
  $format = $format['php'];
  $sort = array();
  $sort['day'] = max(strpos($format, 'd'), strpos($format, 'j'));
  $sort['month'] = max(strpos($format, 'm'), strpos($format, 'M'));
  $sort['year'] = strpos($format, 'Y');
  asort($sort);
  $order = array_keys($sort);

  // Output multi-selector for date.
  foreach ($order as $type) {
    switch ($type) {
      case 'day':
        $options = drupal_map_assoc(range(1, 31));
        $title = t('Day');
        break;
      case 'month':
        $options = drupal_map_assoc(range(1, 12), 'map_month');
        $title = t('Month');
        break;
      case 'year':
        $options = drupal_map_assoc(range(1900, 2050));
        $title = t('Year');
        break;
    }
    $element[$type] = array(
      '#type' => 'select',
      '#title' => $title,
      '#title_display' => 'invisible',
      '#value' => $element['#value'][$type],
      '#attributes' => $element['#attributes'],
      '#options' => $options,
    );
  }
  return $element;
}