UPSTREAM BASELINE: nextcloud/spreed v22.0.12 (без изменений)

Источник: https://github.com/nextcloud/spreed/archive/refs/tags/v22.0.12.tar.gz
С этого коммита ветка официального Nextcloud Talk отрезана (решение владельца 2026-07-06).
Все дальнейшие изменения — только наши; версии релизов: 22.0.12-f7.N.

lib/Share/Helper/Preloader.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Talk\Share\Helper;
+
+use OCA\Talk\Share\RoomShareProvider;
+use OCP\Share\IShare;
+
+/**
+ * Instead of doing a single query to get each share and file metadata
+ * we do a grouped query up front so the entries are cached
+ */
+class Preloader {
+	public function __construct(
+		protected RoomShareProvider $shareProvider,
+		protected FilesMetadataCache $filesMetadataCache,
+	) {
+	}
+
+	/*
+	 * Gather share IDs from the comments and preload share definitions
+	 * and files metadata to avoid separate database query for each
+	 * individual share/node later on.
+	 *
+	 * @param IComment[] $comments
+	 */
+	public function preloadShares(array $comments): void {
+		// Scan messages for share IDs
+		$shareIds = [];
+		foreach ($comments as $comment) {
+			$verb = $comment->getVerb();
+			if ($verb === 'object_shared') {
+				$message = $comment->getMessage();
+				$data = json_decode($message, true);
+				if (isset($data['parameters']['share'])) {
+					$shareIds[] = $data['parameters']['share'];
+				}
+			}
+		}
+		if (!empty($shareIds)) {
+			// Retrieved Share objects will be cached by
+			// the RoomShareProvider and returned from the cache to
+			// the Parser\SystemMessage without additional database queries.
+			$shares = $this->shareProvider->getSharesByIds($shareIds);
+
+			// Preload files metadata as well
+			$fileIds = array_filter(array_map(static fn (IShare $share) => $share->getNodeId(), $shares));
+			$this->filesMetadataCache->preloadMetadata($fileIds);
+		}
+	}
+}