Disable database migrations for MSSQL - scripts have to be applied manually

lib/private/db/mdb2schemamanager.php

@@ -12,6 +12,7 @@ use Doctrine\DBAL\Platforms\MySqlPlatform;
 use Doctrine\DBAL\Platforms\OraclePlatform;
 use Doctrine\DBAL\Platforms\PostgreSqlPlatform;
 use Doctrine\DBAL\Platforms\SqlitePlatform;
+use Doctrine\DBAL\Platforms\SQLServerPlatform;
 
 class MDB2SchemaManager {
 	/**
@@ -65,6 +66,8 @@ class MDB2SchemaManager {
 			return new OracleMigrator($this->conn);
 		} else if ($platform instanceof MySqlPlatform) {
 			return new MySQLMigrator($this->conn);
+		} else if ($platform instanceof SQLServerPlatform) {
+			return new MsSqlMigrator($this->conn);
 		} else if ($platform instanceof PostgreSqlPlatform) {
 			return new Migrator($this->conn);
 		} else {

lib/private/db/mssqlmigrator.php

@@ -0,0 +1,23 @@
+<?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\DB;
+
+use Doctrine\DBAL\Schema\Schema;
+
+class MsSqlMigrator extends Migrator {
+
+	/**
+	 * @param \Doctrine\DBAL\Schema\Schema $targetSchema
+	 */
+	public function migrate(Schema $targetSchema) {
+		throw new MigrationException('',
+			'Database migration is required to continue operations. Please contact support@owncloud.com to get the required sql migration scripts to be applied.');
+	}
+
+}