MAPG-199 fix issues found by PHPStan

src/Cli/AddUserCommand.php

@@ -10,7 +10,7 @@ use Symfony\Component\Console\Output\OutputInterface;
 
 class AddUserCommand extends Command
 {
-    public function configure()
+    public function configure(): void
     {
         $this->setName('user:add')
             ->setDescription('Adding of user.')

src/Cli/LinkViewCommand.php

@@ -11,7 +11,7 @@ use Symfony\Component\Console\Output\OutputInterface;
 
 class LinkViewCommand extends Command
 {
-    public function configure()
+    public function configure(): void
     {
         $this->setName('view:link')
             ->setDescription('Linking of views.')

src/Cli/MaintainDatabaseCommand.php

@@ -14,7 +14,7 @@ use Symfony\Component\Console\Output\OutputInterface;
 
 class MaintainDatabaseCommand extends Command
 {
-    private PersistentDataManager $persistentDataManager;
+    private PersistentDataManager $pdm;
 
     private UserRepository $userRepository;
 
@@ -26,13 +26,13 @@ class MaintainDatabaseCommand extends Command
     {
         parent::__construct();
 
-        $this->persistentDataManager = new PersistentDataManager();
+        $this->pdm = new PersistentDataManager();
         $this->userRepository = new UserRepository();
         $this->userConfirmationRepository = new UserConfirmationRepository();
         $this->userPasswordResetterRepository = new UserPasswordResetterRepository();
     }
 
-    public function configure()
+    public function configure(): void
     {
         $this->setName('db:maintain')
             ->setDescription('Maintain database.');
@@ -76,7 +76,7 @@ class MaintainDatabaseCommand extends Command
                 $this->pdm->deleteFromDb($userPasswordResetter);
             }
 
-            $this->persistentDataManager->deleteFromDb($user);
+            $this->pdm->deleteFromDb($user);
         }
 
         \Container::$dbConnection->commit();
@@ -85,7 +85,7 @@ class MaintainDatabaseCommand extends Command
     private function deleteExpiredPasswordResetters(): void
     {
         foreach ($this->userPasswordResetterRepository->getAllExpired() as $passwordResetter) {
-            $this->persistentDataManager->deleteFromDb($passwordResetter);
+            $this->pdm->deleteFromDb($passwordResetter);
         }
     }
 

src/Cli/MigrateDatabaseCommand.php

@@ -9,7 +9,7 @@ use Symfony\Component\Console\Output\OutputInterface;
 
 class MigrateDatabaseCommand extends Command
 {
-    public function configure()
+    public function configure(): void
     {
         $this->setName('db:migrate')
             ->setDescription('Migration of database changes.');
@@ -88,6 +88,10 @@ class MigrateDatabaseCommand extends Command
         $path = ROOT . '/database/migrations/' . $type;
         $dir = opendir($path);
 
+        if ($dir === false) {
+            throw new \Exception('Cannot open dir: ' . $path);
+        }
+
         $files = [];
         while ($file = readdir($dir)) {
             $filePath = $path . '/' . $file;