set sharing layout

db/share.php

@@ -0,0 +1,22 @@
+<?php
+namespace OCA\QuickNotes\Db;
+
+use JsonSerializable;
+
+use OCP\AppFramework\Db\Entity;
+
+class Share extends Entity implements JsonSerializable {
+
+	protected $noteId;
+	protected $sharedUser;
+	protected $sharedGroup;
+
+	public function jsonSerialize() {
+		return [
+			'id' => $this->id,
+			'note' => $this->noteId,
+			'user' => $this->sharedUser,
+			'group' => $this->sharedGroup
+		];
+	}
+}

db/sharemapper.php

@@ -0,0 +1,28 @@
+<?php
+namespace OCA\QuickNotes\Db;
+
+use OCP\IDb;
+use OCP\AppFramework\Db\Mapper;
+use OCP\AppFramework\Db\DoesNotExistException;
+
+class ShareMapper extends Mapper {
+
+	public function __construct(IDb $db) {
+		parent::__construct($db, 'quicknotes_notes', '\OCA\QuickNotes\Db\Share');
+	}
+
+	/*public function find($id, $userId) {
+		$sql = 'SELECT * FROM *PREFIX*quicknotes_shares WHERE id = ? AND user_id = ?';
+		return $this->findEntity($sql, [$id, $userId]);
+	}*/
+
+	public function findForUser($userId) {
+		$sql = 'SELECT * FROM *PREFIX*quicknotes_shares WHERE shared_user = ?';
+		return $this->findEntities($sql, [$userId]);
+	}
+
+	public function findForGroup($groupId) {
+		$sql = 'SELECT * FROM *PREFIX*quicknotes_shares WHERE shared_group = ?';
+		return $this->findEntities($sql, [$groupId]);
+	}
+}