Whups_Query::reduce PHP Method

    public function reduce($method, &$vars)
    {
        return $this->_reduce($this->query, $method, $vars);
    }

 /**
  * Executes a query.
  *
  * @param Whups_Query $query     A query object.
  * @param Horde_Variables $vars  Request variables.
  * @param boolean $get_details   Whether to return all ticket details.
  * @param boolean $munge         @TODO (?)
  *
  * @return array  List of ticket IDs or ticket details that match the query
  *                criteria.
  * @throws Whups_Exception
  */
 public function executeQuery(Whups_Query $query, Horde_Variables $vars, $get_details = true, $munge = true)
 {
     $this->jtables = array();
     $this->joins = array();
     $where = $query->reduce(array($this, 'clauseFromQuery'), $vars);
     if (!$where) {
         $GLOBALS['notification']->push(_("No query to run"), 'horde.message');
         return array();
     }
     if ($this->joins) {
         $joins = implode(' ', $this->joins);
     } else {
         $joins = '';
     }
     try {
         $ids = $this->_db->selectValues("SELECT whups_tickets.ticket_id FROM whups_tickets {$joins} " . "WHERE {$where}");
     } catch (Horde_Db_Exception $e) {
         $GLOBALS['notification']->push($e->getMessage(), 'horde.error');
         return array();
     }
     if (!count($ids)) {
         return array();
     }
     if ($get_details) {
         $ids = $this->getTicketsByProperties(array('id' => $ids), $munge);
     }
     return $ids;
 }