Update PhotofilesService.php

Author: tetebueno

lib/Service/PhotofilesService.php

@@ -78,17 +78,18 @@ public function __construct (ILogger $logger,
 		$this->backgroundJobCache = $this->cacheFactory->createDistributed('maps:background-jobs');
     }
 
-    public function rescan($userId, $inBackground=true) {
-		$this->photosCache->clear($userId);
+    public function rescanPath($userId, $pathToScan, $inBackground=true) {
         $userFolder = $this->root->getUserFolder($userId);
+        if ($pathToScan !== null) {
+            $userFolder = $userFolder->get($pathToScan);
+        }
         $photos = $this->gatherPhotoFiles($userFolder, true);
-        $this->photoMapper->deleteAll($userId);
         foreach ($photos as $photo) {
-			if ($inBackground) {
-				$this->addPhoto($photo, $userId);
-			} else {
-				$this->addPhotoNow($photo, $userId);
-			}
+            if ($inBackground) {
+                $this->addPhoto($photo, $userId);
+            } else {
+                $this->addPhotoNow($photo, $userId);
+            }
             yield $photo->getPath();
         }
     }