/**
  * @param EE_Event $item
  *
  * @return string
  */
 public function column_author(EE_Event $item)
 {
     //user author info
     $event_author = get_userdata($item->wp_user());
     $gravatar = get_avatar($item->wp_user(), '15');
     //filter link
     $query_args = array('action' => 'default', 'EVT_wp_user' => $item->wp_user());
     $filter_url = EE_Admin_Page::add_query_args_and_nonce($query_args, EVENTS_ADMIN_URL);
     return $gravatar . '  <a href="' . $filter_url . '" title="' . esc_attr__('Click to filter events by this author.', 'event_espresso') . '">' . $event_author->display_name . '</a>';
 }
 /**
  * Helper method to return the user object for the author of the given EE_Event
  *
  * @param EE_Event $event
  *
  * @return WP_User
  */
 private function _get_author_for_event(EE_Event $event)
 {
     $author_id = $event->wp_user();
     $user_data = get_userdata((int) $author_id);
     return $user_data;
 }