Source of file TeamPage.php

<?php

namespace WWN\Team;

use http\Client\Request;

use Page;

use SilverStripe\Control\Controller;

use SilverStripe\Control\Director;

use SilverStripe\ORM\ArrayList;

use SilverStripe\ORM\DataList;

use SilverStripe\ORM\SS_List;

use SilverStripe\View\ArrayData;

/**

 * TeamPage

 *

 * @package wwn-team

 */

class TeamPage extends Page

{

    /**

     * @return ArrayList|SS_List

     */

    public function Children()

    {

        $groups = TeamGroup::get()->sort('SortOrder ASC');

        $children = ArrayList::create();

        foreach ($groups as $group) {

            $children->push(

                new ArrayData(

                    [

                        'Link' => $this->URLSegment.'/'.$group->URLSegment,

                        'MenuTitle' => $group->Name,

                        'LinkingMode' => $group->LinkingMode(),

                    ]

                )

            );

        }

        return $children;

    }

}