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<? namespace Bitrix\UI\EntitySelector; class PreselectedCollection implements \IteratorAggregate, \JsonSerializable { private $items = []; private $itemsByEntity = []; public function __construct() { } public function add(PreselectedItem $preselectedItem) { if ($this->has($preselectedItem)) { return; } if (!isset($this->itemsByEntity[$preselectedItem->getEntityId()])) { $this->itemsByEntity[$preselectedItem->getEntityId()] = []; } $this->itemsByEntity[$preselectedItem->getEntityId()][$preselectedItem->getId()] = $preselectedItem; $this->items[] = $preselectedItem; } public function load(array $ids) { foreach ($ids as $itemId) { if (!is_array($itemId) || count($itemId) !== 2) { continue; } [$entityId, $id] = $itemId; if (is_string($entityId) && (is_string($id) || is_int($id))) { if ($this->get($entityId, $id) === null) { $this->add(new PreselectedItem(['entityId' => $entityId, 'id' => $id])); } } } } public function get(string $entityId, $itemId): ?PreselectedItem { return $this->itemsByEntity[$entityId][$itemId] ?? null; } public function has(PreselectedItem $preselectedItem): bool { return isset($this->itemsByEntity[$preselectedItem->getEntityId()][$preselectedItem->getId()]); } public function getByItem(Item $item): ?PreselectedItem { return $this->itemsByEntity[$item->getEntityId()][$item->getId()] ?? null; } public function getAll() { return $this->items; } public function getItems() { return $this->itemsByEntity; } public function count(): int { return count($this->items); } /** * @param string $entityId * * @return PreselectedItem[] * */ public function getEntityItems(string $entityId): array { return $this->itemsByEntity[$entityId] ?? []; } /** * @return string[] */ public function getEntities() { return array_keys($this->itemsByEntity); } public function jsonSerialize() { return $this->getAll(); } public function getIterator() { return new \ArrayIterator($this->items); } }