--- /dev/null
+<?php
+/**
+ * @copyright Copyright (c) 2018 Bjoern Schiessle <bjoern@schiessle.org>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Core\Migrations;
+
+use Doctrine\DBAL\Types\Type;
+use OCP\DB\ISchemaWrapper;
+use OCP\Migration\SimpleMigrationStep;
+
+/**
+ * add column for share notes
+ *
+ * Class Version15000Date20180927120000
+ */
+class Version15000Date20180927120000 extends SimpleMigrationStep {
+ public function changeSchema(\OCP\Migration\IOutput $output, \Closure $schemaClosure, array $options) {
+
+ /** @var ISchemaWrapper $schema */
+ $schema = $schemaClosure();
+
+ $table = $schema->getTable('cards');
+ $table->addColumn('uid', Type::STRING, [
+ 'notnull' => true,
+ 'length' => 255]
+ );
+
+ return $schema;
+ }
+}