Conversation Mapper addition + migration to proper scheme

lib/migration/fixconversationreadstates.php

@@ -0,0 +1,54 @@
+<?php
+/**
+ * ownCloud - ocsms
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author Loic Blot <loic.blot@unix-experience.fr>
+ * @copyright Loic Blot 2014-2016
+ */
+
+
+namespace OCA\OcSms\Migration;
+
+use OCP\IUser;
+use OCP\IUserManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+use \OCA\OcSms\Db\ConversationStateMapper;
+
+class FixConversationReadStates implements IRepairStep {
+
+	private $userManager;
+	private $convStateMapper;
+
+	/**
+	 * FixConversationReadStates constructor.
+	 *
+	 * @param IUserManager $userManager
+	 */
+	public function __construct(ConversationStateMapper $mapper, IUserManager $userManager) {
+		$this->userManager = $userManager;
+		$this->convStateMapper = $mapper;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getName() {
+		return 'Migrate legacy conversation reading states';
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function run(IOutput $output) {
+
+		$output->startProgress();
+		$output->advance(1, "Migrate states");
+		$this->convStateMapper->migrate();
+		$output->finishProgress();
+	}
+}