MAPG-140 refactor user handling to use the PersistentDataManager

src/Repository/UserRepository.php

@@ -0,0 +1,28 @@
+<?php namespace MapGuesser\Repository;
+
+use MapGuesser\Database\Query\Select;
+use MapGuesser\PersistentData\Model\User;
+use MapGuesser\PersistentData\PersistentDataManager;
+
+class UserRepository
+{
+    private PersistentDataManager $pdm;
+
+    public function __construct()
+    {
+        $this->pdm = new PersistentDataManager();
+    }
+
+    public function getById(int $userId): ?User
+    {
+        return $this->pdm->selectFromDbById($userId, User::class);
+    }
+
+    public function getByEmail(string $email): ?User
+    {
+        $select = new Select(\Container::$dbConnection);
+        $select->where('email', '=', $email);
+
+        return $this->pdm->selectFromDb($select, User::class);
+    }
+}