Simple views field handler for radioactivity.

mcard_handler_field_node_radioactivity.inc

/**
 * Field handler to provide simple renderer that calls function to record
 * radioactivity of the node being viewed.
 */
class mcard_handler_field_node_radioactivity extends views_handler_field_node {
  function render($values) {
    if (module_exists('radioactivity')) {
      radioactivity_node_user_node_view($values->nid);
    }
    return $this->render_link(check_plain($values->{$this->field_alias}), $values);
  }
}