function content_handler_field_multiple::render in Content Construction Kit (CCK) 6.2

Same name and namespace in other branches

1. 6.3 includes/views/handlers/content_handler_field_multiple.inc \content_handler_field_multiple::render()

Overrides content_handler_field::render

File

includes/views/handlers/content_handler_field_multiple.inc, line 217

An extended subclass for field handling that adds multiple field grouping.

Class

content_handler_field_multiple

@file An extended subclass for field handling that adds multiple field grouping.

Code

function render($values) {

  // If this is not a grouped field, use content_handler_field::render().
  if (!$this->defer_query) {
    return parent::render($values);
  }

  // We're down to a single node here, so we can retrieve the actual field
  // definition for the node type being considered.
  $field = content_fields($this->content_field['field_name'], $values->{$this->aliases['type']});

  // If the field does not appear in the node type, then we have no value
  // to display, and can just return.
  if (empty($field)) {
    return '';
  }
  $options = $this->options;
  $vid = $values->{$this->field_alias};
  if (isset($this->field_values[$vid])) {

    // Gather items, respecting the 'Display n values starting from m' settings.
    $count_skipped = 0;
    $items = array();
    foreach ($this->field_values[$vid] as $item) {
      if (empty($options['multiple']['multiple_from']) || $count_skipped >= $options['multiple']['multiple_from']) {
        if (empty($options['multiple']['multiple_number']) || count($items) < $options['multiple']['multiple_number']) {

          // Grab the nid - needed for render_link().
          $nid = $item['_nid'];
          unset($item['_nid']);
          $items[] = $item;
        }
        else {
          break;
        }
      }
      $count_skipped++;
    }

    // Build a pseudo-node from the retrieved values.
    $node = drupal_clone($values);

    // content_format and formatters will need a 'type'.
    $node->type = $values->{$this->aliases['type']};
    $node->nid = $values->{$this->aliases['nid']};
    $node->vid = $values->{$this->aliases['vid']};

    // Some formatters need to behave differently depending on the build_mode
    // (for instance: preview), so we provide one.
    $node->build_mode = NODE_BUILD_NORMAL;

    // Render items.
    $formatter_name = $options['format'];
    if ($items && ($formatter = _content_get_formatter($formatter_name, $field['type']))) {
      $rendered = array();
      if (content_handle('formatter', 'multiple values', $formatter) == CONTENT_HANDLE_CORE) {

        // Single-value formatter.
        foreach ($items as $item) {
          $output = content_format($field, $item, $formatter_name, $node);
          if (!empty($output)) {
            $rendered[] = $this
              ->render_link($output, (object) array(
              'nid' => $nid,
            ));
          }
        }
      }
      else {

        // Multiple values formatter.
        $output = content_format($field, $items, $formatter_name, $values);
        if (!empty($output)) {
          $rendered[] = $this
            ->render_link($output, (object) array(
            'nid' => $nid,
          ));
        }
      }
      if (count($rendered) > 1) {

        // TODO: could we use generic field display ?
        return theme('content_view_multiple_field', $rendered, $field, $values);
      }
      elseif ($rendered) {
        return $rendered[0];
      }
    }
  }
  return '';
}