public function relation()
    {
        if ($this->relation === null) {
            $this->relation = new Table\Relation($this);
        }
        return $this->relation;
    }
public function relation()
    {
        if ($this->relation === null) {
            $this->relation = new Table\Relation($this);
        }
        return $this->relation;
    }
public function relation ( ) { if ( $ this -> relation === null ) { $ this -> relation = new Table \ Relation ( $ this ) ; } return $ this -> relation ; }
Return table relation reader

@return Table\Relation
Return table relation reader