1 files changed, 43 insertions, 0 deletions
diff --git a/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php b/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php
new file mode 100644
index 00000000000..66c638e66e0
--- /dev/null
+++ b/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php
@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\DB\Events;
+
+/**
+ * Event to allow apps to register information about missing database primary keys
+ *
+ * This event will be dispatched for checking on the admin settings and when running
+ * occ db:add-missing-primary-keys which will then create those keys
+ *
+ * @since 28.0.0
+ */
+class AddMissingPrimaryKeyEvent extends \OCP\EventDispatcher\Event {
+	/** @var array<array-key, array{tableName: string, primaryKeyName: string, columns: string[], formerIndex: null|string}> */
+	private array $missingPrimaryKeys = [];
+
+	/**
+	 * @param string[] $columns
+	 * @since 28.0.0
+	 */
+	public function addMissingPrimaryKey(string $tableName, string $primaryKeyName, array $columns, ?string $formerIndex = null): void {
+		$this->missingPrimaryKeys[] = [
+			'tableName' => $tableName,
+			'primaryKeyName' => $primaryKeyName,
+			'columns' => $columns,
+			'formerIndex' => $formerIndex,
+		];
+	}
+
+	/**
+	 * @since 28.0.0
+	 * @return array<array-key, array{tableName: string, primaryKeyName: string, columns: string[], formerIndex: null|string}>
+	 */
+	public function getMissingPrimaryKeys(): array {
+		return $this->missingPrimaryKeys;
+	}
+}