MySQL: adding repair step to convert MyIsam tables to InnoDB

1 files changed, 51 insertions, 0 deletions

diff --git a/lib/repair/innodb.php b/lib/repair/innodb.php
new file mode 100644
index 00000000000..4d58bf64a9e
--- /dev/null
+++ b/lib/repair/innodb.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * Copyright (c) 2014 Thomas Müller <deepdiver@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\Repair;
+
+use Doctrine\DBAL\Platforms\MySqlPlatform;
+use OC\Hooks\BasicEmitter;
+
+class InnoDB extends BasicEmitter implements \OC\RepairStep {
+
+	public function getName() {
+		return 'Repair MySQL database engine';
+	}
+
+	/**
+	 * Fix mime types
+	 */
+	public function run() {
+		$connection = \OC_DB::getConnection();
+		if (!$connection->getDatabasePlatform() instanceof MySqlPlatform) {
+			$this->emit('\OC\Repair', 'info', array('Not a mysql database -> nothing to no'));
+			return;
+		}
+
+		$tables = $this->getAllMyIsamTables($connection);
+		foreach ($tables as $table) {
+			$connection->exec("ALTER TABLE $table ENGINE=InnoDB;");
+			$this->emit('\OC\Repair', 'info', array("Fixed $table"));
+		}
+	}
+
+	/**
+	 * @param \Doctrine\DBAL\Connection $connection
+	 * @return string[]
+	 */
+	private function getAllMyIsamTables($connection) {
+		$dbName = \OC::$server->getConfig()->getSystemValue("dbname");
+		$result = $connection->fetchArray(
+			"SELECT table_name FROM information_schema.tables WHERE table_schema = ? AND engine = 'MyISAM'",
+			array($dbName)
+		);
+
+		return $result;
+	}
+}
+