1 files changed, 43 insertions, 0 deletions
diff --git a/lib/public/DB/Events/AddMissingColumnsEvent.php b/lib/public/DB/Events/AddMissingColumnsEvent.php
new file mode 100644
index 00000000000..178a24c0c30
--- /dev/null
+++ b/lib/public/DB/Events/AddMissingColumnsEvent.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 columns
+ *
+ * This event will be dispatched for checking on the admin settings and when running
+ * occ db:add-missing-columns which will then create those columns
+ *
+ * @since 28.0.0
+ */
+class AddMissingColumnsEvent extends \OCP\EventDispatcher\Event {
+	/** @var array<array-key, array{tableName: string, columnName: string, typeName: string, options: array{}}> */
+	private array $missingColumns = [];
+
+	/**
+	 * @param mixed[] $options
+	 * @since 28.0.0
+	 */
+	public function addMissingColumn(string $tableName, string $columnName, string $typeName, array $options): void {
+		$this->missingColumns[] = [
+			'tableName' => $tableName,
+			'columnName' => $columnName,
+			'typeName' => $typeName,
+			'options' => $options,
+		];
+	}
+
+	/**
+	 * @since 28.0.0
+	 * @return array<array-key, array{tableName: string, columnName: string, typeName: string, options: array{}}>
+	 */
+	public function getMissingColumns(): array {
+		return $this->missingColumns;
+	}
+}