public function hasChildren()
    {
        list($lft, $rgt) = $this->wrappedColumns();

        $this->query->whereRaw("{$rgt} > {$lft} + 1");

        return $this;
    }
public function hasChildren()
    {
        list($lft, $rgt) = $this->wrappedColumns();

        $this->query->whereRaw("{$rgt} > {$lft} + 1");

        return $this;
    }
public function hasChildren ( ) { list ( $ lft , $ rgt ) = $ this -> wrappedColumns ( ) ; $ this -> query -> whereRaw ( "{$rgt} > {$lft} + 1" ) ; return $ this ; }
Get only nodes that have children.

@since 2.0
@deprecated since v4.1

@return $this
Get only nodes that have children .