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/Migration/Version7000Date20190724121136.php

@@ -0,0 +1,103 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\Talk\Migration;
+
+use Doctrine\DBAL\Schema\SchemaException;
+use OCP\DB\ISchemaWrapper;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\DB\Types;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+class Version7000Date20190724121136 extends SimpleMigrationStep {
+
+	public function __construct(
+		protected IDBConnection $connection,
+	) {
+	}
+
+	/**
+	 * @param IOutput $output
+	 * @param \Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 * @return null|ISchemaWrapper
+	 * @throws SchemaException
+	 * @since 13.0.0
+	 */
+	#[\Override]
+	public function changeSchema(IOutput $output, \Closure $schemaClosure, array $options) {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		$table = $schema->getTable('talk_participants');
+		if (!$table->hasColumn('last_read_message')) {
+			$table->addColumn('last_read_message', Types::BIGINT, [
+				'default' => 0,
+				'notnull' => false,
+			]);
+			$table->addColumn('last_mention_message', Types::BIGINT, [
+				'default' => 0,
+				'notnull' => false,
+			]);
+		}
+
+		return $schema;
+	}
+
+	/**
+	 * @param IOutput $output
+	 * @param \Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 *
+	 * @since 13.0.0
+	 *
+	 * @return void
+	 */
+	#[\Override]
+	public function postSchemaChange(IOutput $output, \Closure $schemaClosure, array $options) {
+		$query = $this->connection->getQueryBuilder();
+		$query->select('m.user_id', 'm.object_id')
+			->selectAlias($query->createFunction('MAX(' . $query->getColumnName('c.id') . ')'), 'last_comment')
+			->from('comments_read_markers', 'm')
+			->leftJoin('m', 'comments', 'c', $query->expr()->andX(
+				$query->expr()->eq('c.object_id', 'm.object_id'),
+				$query->expr()->eq('c.object_type', 'm.object_type'),
+				$query->expr()->eq('c.creation_timestamp', 'm.marker_datetime')
+			))
+			->where($query->expr()->eq('m.object_type', $query->createNamedParameter('chat')))
+			->groupBy('m.user_id', 'm.object_id');
+
+		$update = $this->connection->getQueryBuilder();
+		$update->update('talk_participants')
+			->set('last_read_message', $update->createParameter('message_id'))
+			->where($update->expr()->eq('user_id', $update->createParameter('user_id')))
+			->andWhere($update->expr()->eq('room_id', $update->createParameter('room_id')));
+
+		$result = $query->executeQuery();
+		while ($row = $result->fetch()) {
+			$update->setParameter('message_id', (int)$row['last_comment'], IQueryBuilder::PARAM_INT)
+				->setParameter('user_id', $row['user_id'])
+				->setParameter('room_id', (int)$row['object_id'], IQueryBuilder::PARAM_INT);
+			$update->executeStatement();
+		}
+		$result->closeCursor();
+
+		/**
+		 * The above query only works if the user read in the same exact second
+		 * as the comment was posted (author only), we set the read marker to -1
+		 * for all users and in case of -1 we calculate the marker on the next request.
+		 */
+		$update = $this->connection->getQueryBuilder();
+		$update->update('talk_participants')
+			->set('last_read_message', $update->createNamedParameter(-1))
+			->where($update->expr()->isNotNull('user_id'))
+			->andWhere($update->expr()->eq('last_read_message', $update->createNamedParameter(0)));
+		$update->executeStatement();
+	}
+}