1 files changed, 51 insertions, 0 deletions
diff --git a/lib/public/Migration/BigIntMigration.php b/lib/public/Migration/BigIntMigration.php
new file mode 100644
index 00000000000..0fa7e559f79
--- /dev/null
+++ b/lib/public/Migration/BigIntMigration.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCP\Migration;
+
+use Doctrine\DBAL\Types\Type;
+use Doctrine\DBAL\Types\Types;
+use OCP\DB\ISchemaWrapper;
+
+/**
+ * @since 13.0.0
+ */
+abstract class BigIntMigration extends SimpleMigrationStep {
+	/**
+	 * @return array Returns an array with the following structure
+	 *               ['table1' => ['column1', 'column2'], ...]
+	 * @since 13.0.0
+	 */
+	abstract protected function getColumnsByTable();
+
+	/**
+	 * @param IOutput $output
+	 * @param \Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 * @return null|ISchemaWrapper
+	 * @since 13.0.0
+	 */
+	public function changeSchema(IOutput $output, \Closure $schemaClosure, array $options) {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		$tables = $this->getColumnsByTable();
+
+		foreach ($tables as $tableName => $columns) {
+			$table = $schema->getTable($tableName);
+
+			foreach ($columns as $columnName) {
+				$column = $table->getColumn($columnName);
+				if ($column->getType()->getName() !== Types::BIGINT) {
+					$column->setType(Type::getType(Types::BIGINT));
+					$column->setOptions(['length' => 20]);
+				}
+			}
+		}
+
+		return $schema;
+	}
+}