move files;cleanup empty folders

oml/item/models.py

@@ -618,6 +618,8 @@ class File(db.Model):
             shutil.move(current_path, path)
             self.path = new_path
             self.save()
+            for folder in set(os.path.dirname(p) for p in [current_path, path]):
+                remove_empty_folders(folder)
 
     def save(self):
         state.db.session.add(self)

oml/item/scan.py

@@ -43,6 +43,11 @@ def remove_missing():
                     dirty = True
             if dirty:
                 state.db.session.commit()
+            for f in File.query:
+                if not state.tasks.connected:
+                    return
+                f.move()
+            remove_empty_folders(prefix)
 
 def add_file(id, f, prefix, from_=None):
     user = state.user()