function viewfield_field_formatter in Viewfield 5

Implementation of hook_field_formatter().

File

./viewfield.module, line 123

Defines a field type for referencing a view from a node

Code

function viewfield_field_formatter($field, $item, $formatter, $node) {

  // Prevent token_replace_multiple() from running this function a second time
  // before it completes the first time.
  static $tokens = TRUE;
  if ($tokens) {
    global $_viewfield_stack;

    // For safety's sake, we can only display 2 levels of viewfields.
    if (count($_viewfield_stack) <= 2) {
      if (!empty($item['vname'])) {

        // XXX: This is probably not multi-select safe.
        $view = views_get_view($item['vname']);
        if (!empty($item['vargs'])) {
          $pos = 0;
          $args = array();
          while ($pos < strlen($item['vargs'])) {
            $found = FALSE;

            // If string starts with a quote, start after quote and get everything before next quote.
            if (strpos($item['vargs'], '"', $pos) === $pos) {
              if (($quote = strpos($item['vargs'], '"', ++$pos)) !== FALSE) {

                // Skip pairs of quotes.
                while (!(($ql = strspn($item['vargs'], '"', $quote)) & 1)) {
                  $quote = strpos($item['vargs'], '"', $quote + $ql);
                }
                $args[] = str_replace('""', '"', substr($item['vargs'], $pos, $quote + $ql - $pos - 1));
                $pos = $quote + $ql + 1;
                $found = TRUE;
              }
            }
            elseif (($comma = strpos($item['vargs'], ',', $pos)) !== FALSE) {

              // Otherwise, get everything before next comma.
              $args[] = substr($item['vargs'], $pos, $comma - $pos);

              // Skip to after comma and repeat
              $pos = $comma + 1;
              $found = TRUE;
            }
            if (!$found) {
              $args[] = substr($item['vargs'], $pos);
              $pos = strlen($item['vargs']);
            }
          }
          if (module_exists('token')) {
            $tokens = FALSE;
            $args = token_replace_multiple($args, array(
              'node' => $node,
            ));
            $tokens = TRUE;
          }

          // For backwards compatibility, we scan for %nid, etc.
          global $user;
          foreach ($args as $key => $a) {
            $args[$key] = strtr($a, array(
              '%nid' => $node->nid,
              '%author' => $node->uid,
              '%viewer' => $user->uid,
            ));
          }
        }
        if ($formatter != 'default' && $formatter != 'count') {
          $view->page_type = $formatter;
        }

        // Need to prevent recursive views and node building, but don't need to do it on
        // new node previews.
        if ($node->nid) {
          _viewfield_nodestack_push($node->nid);
        }
        if ($formatter == 'block' && $view->block_use_pager || $view->use_pager && $formatter != 'block') {

          // Fix for multiple pagers
          global $pager_total;
          static $viewfield_pager_elements = array();
          $key = $node->nid . '-' . $field['field_name'] . '-' . $view->name;

          // Set a unique key for the view in the current node.
          if (!isset($viewfield_pager_elements[$key])) {

            // Set the viewfield pager element to the max + 1
            $max1 = is_array($pager_total) ? @max(array_values($pager_total)) : 1;
            $av = array_values($viewfield_pager_elements);
            $max2 = $av ? max($av) : 0;
            $viewfield_pager_elements[$key] = @max($max1, $max2) + 1;
          }
          $use_pager = $viewfield_pager_elements[$key];
        }
        else {
          $use_pager = FALSE;
        }
        switch ($formatter) {
          default:
            $output = views_build_view('embed', $view, $args, $use_pager, $view->nodes_per_page);
            break;
          case 'block':
            $output = views_build_view('block', $view, $args, $use_pager, $view->nodes_per_block);
            break;
          case 'count':
            $queries = views_build_view('queries', $view, $args);
            $output = db_result(db_query($queries['countquery']));
            break;
        }

        // This node is "safe" again.
        if ($node->nid) {
          _viewfield_nodestack_pop();
        }
        return $output;
      }
    }
  }
}