Update Database.py

Database.py

@@ -126,7 +126,7 @@ def on_snapshot(doc_snapshot, changes, read_time):
         datetime_obj = datetime.strptime(shakw.date, date_format)
         if datetime_obj.date() == datetime.today().date() and shakw.id not in documnetskey:
             documents.append(shakw)
-            documnetskey.add(document.id)
+            documnetskey.add(shakw.id)
 
       
         if shakw.summary==None: