class.ilPDSelectedItemsBlockMembershipsProvider.php

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<?php
/* Copyright (c) 1998-2017 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Services/Membership/classes/class.ilParticipants.php';
require_once 'Services/PersonalDesktop/ItemsBlock/interfaces/interface.ilPDSelectedItemsBlockProvider.php';

class ilPDSelectedItemsBlockMembershipsProvider implements ilPDSelectedItemsBlockProvider
{
    protected $actor;

    protected $tree;

    public function __construct(ilObjUser $actor)
    {
        global $DIC;

        $this->actor = $actor;
        $this->tree = $DIC->repositoryTree();
    }

    protected function getObjectsByMembership($types = array())
    {
        $items = array();

        if (is_array($types) && count($types)) {
            foreach ($types as $type) {
                switch ($type) {
                    case 'grp':
                        $items = array_merge(ilParticipants::_getMembershipByType($this->actor->getId(), 'grp'), $items);
                        break;
                    case 'crs':
                        $items = array_merge(ilParticipants::_getMembershipByType($this->actor->getId(), 'crs'), $items);
                        break;
                    default:
                        break;
                }
            }
        } else {
            $crs_mbs = ilParticipants::_getMembershipByType($this->actor->getId(), 'crs');
            $grp_mbs = ilParticipants::_getMembershipByType($this->actor->getId(), 'grp');
            $items = array_merge($crs_mbs, $grp_mbs);
        }

        $references = array();

        foreach ($items as $key => $obj_id) {
            $item_references = ilObject::_getAllReferences($obj_id);
            foreach ($item_references as $ref_id) {
                if ($this->tree->isInTree($ref_id)) {
                    $object = ilObjectFactory::getInstanceByRefId($ref_id);

                    $parent_ref_id = $this->tree->getParentId($ref_id);
                    $par_left = $this->tree->getLeftValue($parent_ref_id);
                    $par_left = sprintf("%010d", $par_left);

                    $references[$par_left . $object->getTitle() . $ref_id] = array(
                        'ref_id' => $ref_id,
                        'obj_id' => $obj_id,
                        'type' => $object->getType(),
                        'title' => $object->getTitle(),
                        'description' => $object->getDescription(),
                        'parent_ref' => $parent_ref_id,
                        'start' => $object->getType() == 'grp' ? $object->getStart() : $object->getCourseStart(),
                        'end' => $object->getType() == 'grp' ? $object->getEnd()   : $object->getCourseEnd()
                    );
                }
            }
        }

        ksort($references);

        return $references;
    }

    public function getItems($object_type_white_list = array())
    {
        return $this->getObjectsByMembership($object_type_white_list);
    }
}