IblockElementProvider.php

<?php
 
namespace Bitrix\Catalog\v2\Integration\UI\EntitySelector;
 
use Bitrix\Iblock\Component\Tools;
use Bitrix\Iblock\PropertyTable;
use Bitrix\UI\EntitySelector\Dialog;
use Bitrix\UI\EntitySelector\Item;
use Bitrix\UI\EntitySelector\BaseProvider;
use Bitrix\UI\EntitySelector\SearchQuery;
 
class IblockElementProvider extends BaseProvider
{
    protected const ENTITY_ID = 'iblock-element';
    private const ELEMENTS_LIMIT = 20;
 
    public function __construct(array $options = [])
    {
        parent::__construct();
 
        $this->options = $options;
    }
 
    public function isAvailable(): bool
    {
        return $GLOBALS['USER']->isAuthorized();
    }
 
    public function getItems(array $ids): array
    {
        $items = [];
 
        $filter = !empty($ids) ? ['ID' => $ids] : [];
 
        foreach ($this->getElements($filter) as $element)
        {
            $items[] = $this->makeItem($element);
        }
 
        return $items;
    }
 
    public function fillDialog(Dialog $dialog): void
    {
        $dialog->loadPreselectedItems();
 
        if ($dialog->getItemCollection()->count() > 0)
        {
            foreach ($dialog->getItemCollection() as $item)
            {
                $dialog->addRecentItem($item);
            }
        }
 
        $recentItems = $dialog->getRecentItems()->getEntityItems(self::ENTITY_ID);
        $recentItemsCount = count($recentItems);
 
        if ($recentItemsCount < self::ELEMENTS_LIMIT)
        {
            foreach ($this->getElements() as $element)
            {
                $dialog->addRecentItem($this->makeItem($element));
            }
        }
    }
 
    public function doSearch(SearchQuery $searchQuery, Dialog $dialog): void
    {
        $filter = [];
 
        $query = $searchQuery->getQuery();
        if ($query !== '')
        {
            $filter = $this->getQueryFilter($query);
        }
 
        $elements = $this->getElements($filter);
        foreach ($elements as $element)
        {
            $dialog->addItem(
                $this->makeItem($element)
            );
        }
    }
 
    public function getPreselectedItems(array $ids): array
    {
        return $this->getItems($ids);
    }
 
    private function getQueryFilter(string $query): array
    {
        return [
            '*SEARCHABLE_CONTENT' => $query,
        ];
    }
 
    protected function getElements(array $additionalFilter = []): array
    {
        $elements = [];
 
        $filter = $this->getDefaultFilter();
        if (!empty($additionalFilter))
        {
            $filter = array_merge($filter, $additionalFilter);
        }
 
        $navParams = ['nTopCount' => self::ELEMENTS_LIMIT];
 
        $selectFields = [
            'ID',
            'NAME',
            'DETAIL_TEXT',
            'PREVIEW_PICTURE',
            'IBLOCK_ID',
            'XML_ID',
        ];
 
        if (!empty($filter))
        {
            $elementData = \CIBlockElement::GetList(
                [],
                $filter,
                false,
                $navParams,
                $selectFields
            );
            while ($element = $elementData->fetch())
            {
                if (empty($element['PREVIEW_PICTURE']))
                {
                    $element['PREVIEW_PICTURE'] = $this->getElementImage($element);
                }
                $elements[] = $element;
            }
        }
 
        return $elements;
    }
 
    protected function makeItem(array $element): Item
    {
        $itemParams = [
            'id' => $element['ID'] ?? null,
            'entityId' => self::ENTITY_ID,
            'title' => $element['NAME'] ?? null,
            'subtitle' => $element['ID'] ?? null,
            'description' => $element['DETAIL_TEXT'] ?? null,
            'avatar' => $element['PREVIEW_PICTURE'] ?? null,
            'customData' => [
                'xmlId' => $element['XML_ID'] ?? null,
            ],
        ];
 
        return new Item($itemParams);
    }
 
    private function getElementImage(array $element): ?string
    {
        $iblockId = $element['IBLOCK_ID'] ?? null;
        if (!$iblockId)
        {
            return '';
        }
 
        $photoPropertyId = $this->getMorePhotoPropertyId($iblockId);
        if (!$photoPropertyId)
        {
            return '';
        }
 
        $propertyFilter = [
            'ID' => $photoPropertyId,
        ];
        $result = \CIBlockElement::GetProperty($iblockId, $element['ID'], 'sort', 'asc', $propertyFilter)->Fetch();
 
        if (empty($result['VALUE']))
        {
            return '';
        }
 
        if (is_array($result['VALUE']))
        {
            $imageId = (int)$result['VALUE'][0];
        }
        else
        {
            $imageId = (int)$result['VALUE'];
        }
 
        return $this->getImageSource($imageId);
    }
 
    private function getDefaultFilter()
    {
        $filter = [
            'CHECK_PERMISSIONS' => 'Y',
            'MIN_PERMISSION' => 'R',
        ];
 
        $iblockId = (int)($this->getOption('iblockId', 0));
        if (!empty($iblockId))
        {
            $filter['IBLOCK_ID'] = $iblockId;
        }
 
        return $filter;
    }
 
    private function getMorePhotoPropertyId(int $iblockId): ?int
    {
        $iterator = PropertyTable::getList([
            'select' => ['ID'],
            'filter' => [
                '=IBLOCK_ID' => $iblockId,
                '=CODE' => \CIBlockPropertyTools::CODE_MORE_PHOTO,
                '=ACTIVE' => 'Y',
            ],
        ]);
        if ($row = $iterator->fetch())
        {
            return (int)$row['ID'];
        }
 
        return null;
    }
 
    private function getImageSource(int $id): ?string
    {
        if ($id <= 0)
        {
            return null;
        }
 
        $file = \CFile::GetFileArray($id);
        if (!$file)
        {
            return null;
        }
 
        return Tools::getImageSrc($file, false) ?: null;
    }
}