CollectionDataSource.php

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<?php

declare(strict_types=1);

namespace ILIAS\components\ResourceStorage\Resources\DataSource;

use ILIAS\ResourceStorage\Identification\ResourceIdentification;
use ILIAS\components\ResourceStorage\Resources\Listing\SortDirection;
use ILIAS\UI\Implementation\Component\Input\Container\Filter\Standard;

class CollectionDataSource extends BaseTableDataSource implements TableDataSource
{
    public function __construct(
        string $collection_id
    ) {
        global $DIC;
        parent::__construct(
            $DIC->resourceStorage()->collection()->id($collection_id, 6) // ad hoc collection
        );
    }

    public function getSortationsMapping(): array
    {
        return [
            SortDirection::BY_SIZE_DESC => 'fsd', // Default
            SortDirection::BY_SIZE_ASC => 'fsa',
            SortDirection::BY_TITLE_ASC => 'rta',
            SortDirection::BY_TITLE_DESC => 'rtd',
        ];
    }

    public function handleFilters(Standard $filter): void
    {
        // TODO: Implement handleFilters() method.
    }

    public function process(): void
    {
        switch ($this->sort_direction) {
            case SortDirection::BY_SIZE_DESC:
                $this->collection = $this->sorter->desc()->bySize();
                break;
            case SortDirection::BY_SIZE_ASC:
                $this->collection = $this->sorter->asc()->bySize();
                break;
            case SortDirection::BY_TITLE_ASC:
                $this->collection = $this->sorter->asc()->byTitle();
                break;
            case SortDirection::BY_TITLE_DESC:
                $this->collection = $this->sorter->desc()->byTitle();
                break;
        }
        $this->filtered_amount_of_items = $this->collection->count();
    }

    #[\Override]
    public function getResourceIdentifications(): array
    {
        return $this->irss->collection()->rangeAsArray(
            $this->collection,
            $this->offset,
            $this->limit
        );
    }
}