rss_date.module in RSS field formatters 7

Provides an RSS date field formatter for date fields.

File

rss_date.module

<?php

/**
 * @file
 * Provides an RSS date field formatter for date fields.
 */

/**
 * Implements hook_field_formatter_info().
 */
function rss_date_field_formatter_info() {
  return array(
    'rss_date' => array(
      'label' => t('RSS date'),
      'field types' => array(
        'date',
        'datestamp',
        'datetime',
      ),
      'settings' => array(
        'rss_element' => 'dc:date',
      ),
    ),
  );
}

/**
 * Implements hook_field_formatter_settings_form().
 */
function rss_date_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
  $element['rss_element'] = array(
    '#title' => t('RSS element'),
    '#type' => 'select',
    '#default_value' => $instance['display'][$view_mode]['settings']['rss_element'],
    '#options' => drupal_map_assoc(array(
      'dc:date',
      'pubDate',
    )),
  );
  return $element;
}

/**
 * Implements hook_field_formatter_settings_summary().
 */
function rss_date_field_formatter_settings_summary($field, $instance, $view_mode) {
  return t('RSS element: %rss_element', array(
    '%rss_element' => $instance['display'][$view_mode]['settings']['rss_element'],
  ));
}

/**
 * Implements hook_field_formatter_view().
 */
function rss_date_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
  static $timezones = array();
  $element = array();
  $item = reset($items);
  if (!isset($timezones[$item['timezone_db']])) {
    $timezones[$item['timezone_db']] = timezone_open($item['timezone_db']);
  }
  if ($item['date_type'] == 'datestamp') {
    $item['value'] = '@' . $item['value'];
  }
  $date = new DateTime($item['value'], $timezones[$item['timezone_db']]);
  if ($item['timezone'] != $item['timezone_db'] || $item['date_type'] == 'datestamp') {
    if (!isset($timezones[$item['timezone']])) {
      $timezones[$item['timezone']] = timezone_open($item['timezone']);
    }
    $date
      ->setTimezone($timezones[$item['timezone']]);
  }
  if ($display['settings']['rss_element'] == 'pubDate') {
    foreach ($entity->rss_elements as $key => $rss_element) {
      if ($rss_element['key'] == 'pubDate') {
        $entity->rss_elements[$key]['value'] = $date
          ->format(DATE_RSS);
        break;
      }
    }
  }
  else {
    $entity->rss_elements[] = array(
      'key' => 'dc:date',
      'value' => $date
        ->format(DATE_W3C),
    );
  }
  return $element;
}

Functions

Name	Description
rss_date_field_formatter_info	Implements hook_field_formatter_info().
rss_date_field_formatter_settings_form	Implements hook_field_formatter_settings_form().
rss_date_field_formatter_settings_summary	Implements hook_field_formatter_settings_summary().
rss_date_field_formatter_view	Implements hook_field_formatter_view().