function views_rss_core_field_formatter_view in Views RSS 7.2

Same name and namespace in other branches

1. 6.2 modules/views_rss_core/views_rss_core.field.inc \views_rss_core_field_formatter_view()

Implements hook_field_formatter_view().

This is a dirty trick here. Essentially, we do not want to call a theme function from here, as it should be called from within a view (amongst other to have $view object in $variables). Therefore here we want to return value only, hence use of array('#markup' => $value). However, in some cases it won't be just a simple string value to return, sometimes we'd want to return an array (for example value with additional arguments) - hence the need to serialize it (plus add "serialized" string at the beginning so that our field preprocess function template_preprocess_views_view_views_rss_field() is able to recognize it as serialized array and treat accordingly.

Any better ideas?

File

modules/views_rss_core/views_rss_core.field.inc, line 85

Field formatters for Views RSS: Core Elements module.

Code

function views_rss_core_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
  $element = NULL;
  foreach ($items as $delta => $item) {

    // Inside a view item may contain NULL data. In that case, just return.
    if (($field['type'] == 'file' || $field['type'] == 'image') && empty($item['fid']) || $field['type'] == 'media' && empty($item['file']->fid) || $field['type'] == 'text' && empty($item['safe_value']) || $field['type'] == 'link_field' && empty($item['url'])) {
      unset($items[$delta]);
      continue;
    }

    // Get full image URL based on provided image style.
    if ($field['type'] == 'image' && !empty($display['settings']['image_style']) && ($image_style = image_style_load($display['settings']['image_style']))) {
      $uri = image_style_url($display['settings']['image_style'], $item['uri']);

      // Get file size of image preset file (if it has already been created,
      // otherwise just create it first and then get file size).
      $path = image_style_path($display['settings']['image_style'], $item['uri']);
      if (file_exists($path) || image_style_create_derivative($image_style, $item['uri'], $path)) {
        $item['filesize'] = filesize($path);
      }
    }
    elseif ($field['type'] == 'media') {
      $uri = file_create_url($item['file']->uri);
      $item['filesize'] = $item['file']->filesize;
      $item['filemime'] = $item['file']->filemime;
    }
    elseif ($field['type'] == 'text' || $field['type'] == 'link_field') {
      $uri = $field['type'] == 'text' ? $item['safe_value'] : $item['url'];

      // Great idea to use get_headers() here by Dan Feidt,
      // http://drupal.org/user/60005 Thanks Dan!
      $headers = get_headers($uri, $format = 1);
      $item['filesize'] = $headers['Content-Length'];
      $item['filemime'] = $headers['Content-Type'];
    }
    else {
      $uri = file_create_url($item['uri']);
    }

    // XML element array in format_xml_elements() format.
    $rss_element = array(
      'key' => 'enclosure',
      'attributes' => array(
        'url' => $uri,
        'length' => $item['filesize'],
        'type' => $item['filemime'],
      ),
    );
    $element[$delta] = array(
      '#item' => $item,
      '#markup' => format_xml_elements(array(
        $rss_element,
      )),
      '#rss_element' => $rss_element,
    );
  }
  return $element;
}