public function clause($condition = 'AND')
    {
        if (empty($this->where)) {
            $condition = null;
        }
        $clause = new AnDomainQueryClause($this, $condition);

        return $clause;
    }
public function clause($condition = 'AND')
    {
        if (empty($this->where)) {
            $condition = null;
        }
        $clause = new AnDomainQueryClause($this, $condition);

        return $clause;
    }
public function clause ( $ condition = 'AND' ) { if ( empty ( $ this -> where ) ) { $ condition = null ; } $ clause = new AnDomainQueryClause ( $ this , $ condition ) ; return $ clause ; }
Return a subclause.

@param string $condition The glue condition

@return AnDomainQuery
Return a subclause .