Upgrade to some new nextcloud standards

lib/Db/NoteMapper.php

@@ -0,0 +1,44 @@
+<?php
+namespace OCA\QuickNotes\Db;
+
+use OCP\IDBConnection;
+use OCP\AppFramework\Db\Mapper;
+use OCP\AppFramework\Db\DoesNotExistException;
+
+class NoteMapper extends Mapper {
+
+	public function __construct(IDBConnection $db) {
+		parent::__construct($db, 'quicknotes_notes', '\OCA\QuickNotes\Db\Note');
+	}
+
+	/**
+	 * @param int $id
+	 * @param string $userId
+	 * @throws \OCP\AppFramework\Db\DoesNotExistException if not found
+	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException if more than one result
+	 * @return Note
+	 */
+	public function find($id, $userId) {
+		$sql = 'SELECT * FROM *PREFIX*quicknotes_notes WHERE id = ? AND user_id = ?';
+		return $this->findEntity($sql, [$id, $userId]);
+	}
+
+	public function findById($id) {
+		$sql = 'SELECT * FROM *PREFIX*quicknotes_notes WHERE id = ?';
+		return $this->findEntity($sql, [$id]);
+	}
+
+	public function findAll($userId) {
+		$sql = 'SELECT * FROM *PREFIX*quicknotes_notes WHERE user_id = ?';
+		return $this->findEntities($sql, [$userId]);
+	}
+
+	public function colorIdCount($colorid) {
+		$sql = 'SELECT COUNT(*) as `count` FROM *PREFIX*quicknotes_notes WHERE color_id = ?';
+		$result = $this->execute($sql, [$colorid]);
+		$row = $result->fetch();
+		$result->closeCursor();
+		return $row['count'];
+	}
+
+}