fix: orm bugs.

backend/src/module/database/orm/insert.py

@@ -5,15 +5,17 @@ class Insert:
         self._columns = data.items()
 
     def __gen_id(self) -> int:
-        self._connector.execute(f"SELECT MAX(id) FROM {self._table_name}")
-        max_id = self._connector.fetchone()[0]
+        self._connector.execute(
+            f"""
+            SELECT MAX(id) FROM {self._table_name}
+            """,
+        )
+        max_id = self._connector.fetchone(keys=["id"]).get("id")
         if max_id is None:
             return 1
         return max_id + 1
 
     def one(self, data: dict):
-        if data["id"] is not None:
-            raise ValueError("id must be None")
         _id = self.__gen_id()
         data["id"] = _id
         columns = ", ".join(data.keys())