Upgrade to some new nextcloud standards

lib/Controller/TagController.php

@@ -0,0 +1,46 @@
+<?php
+/**
+ * Nextcloud - quicknotes
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author Matias De lellis <mati86dl@gmail.com>
+ * @copyright Matias De lellis 2019
+ */
+
+namespace OCA\QuickNotes\Controller;
+
+use OCP\IRequest;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\Controller;
+
+use OCA\QuickNotes\Db\Tag;
+use OCA\QuickNotes\Db\TagMapper;
+
+class TagController extends Controller {
+
+	private $tagmapper;
+	private $userId;
+
+	public function __construct($AppName,
+	                            IRequest  $request,
+	                            TagMapper $tagmapper,
+	                            $UserId)
+	{
+		parent::__construct($AppName, $request);
+		$this->tagmapper = $tagmapper;
+		$this->userId = $UserId;
+	}
+
+	/**
+	 * @NoAdminRequired
+	 */
+	 public function index() {
+		$notes = $this->tagmapper->findAll($this->userId);
+		return new DataResponse($notes);
+	}
+
+}