fix: index out of range when rebuild cache

database.py

@@ -26,7 +26,6 @@ class Condition:
         if self._order_by:
             sql += f" ORDEY BY {self._order_by}"
 
-        print(sql)
         return sql
 
     def or_equal(self, column, equals_to, case_sensitive=True):
@@ -331,7 +330,11 @@ class MusicDatabase:
         return self._result_to_dict(results)
 
     def query_music_by_id(self, _id):
-        return self.query_music(Condition().and_equal("id", _id))[0]
+        results = self.query_music(Condition().and_equal("id", _id))
+        if results:
+            return self.query_music(Condition().and_equal("id", _id))[0]
+        else:
+            return None
 
     def query_music_by_keywords(self, keywords):
         condition = Condition()

interface.py

@@ -301,6 +301,7 @@ def post():
                 os.remove(item.uri())
 
             var.cache.free_and_delete(_id)
+            time.sleep(0.1)
 
         elif 'add_tag' in request.form:
             music_wrappers = get_cached_wrappers_by_tags(var.bot, [request.form['add_tag']], user)
@@ -425,7 +426,7 @@ def library():
             if current_page <= page_count:
                 condition.offset((current_page - 1) * ITEM_PER_PAGE)
             else:
-                abort(404)
+                current_page = 1
 
             condition.limit(ITEM_PER_PAGE)
             items = dicts_to_items(var.bot, var.music_db.query_music(condition))
@@ -452,6 +453,7 @@ def library():
                 if len(os.listdir(var.music_folder + request.form['dir'])) == 0:
                     os.rmdir(var.music_folder + request.form['dir'])
 
+                time.sleep(0.1)
                 return redirect("./", code=302)
             else:
                 results = []

mumbleBot.py

@@ -646,6 +646,7 @@ if __name__ == '__main__':
 
     handler.setFormatter(formatter)
     bot_logger.addHandler(handler)
+    logging.getLogger("root").addHandler(handler)
     var.bot_logger = bot_logger
 
     if var.config.get("bot", "save_music_library", fallback=True):

templates/index.html

@@ -743,6 +743,7 @@
                         404: function(){
                             lib_loading.hide();
                             lib_empty.show();
+                            page_ul.empty();
                         }
                     }
                 });