Add command to backfill room history from Telegram

Currently supports backfilling one room at a time and backfills everything after the last bridged message.
2020-02-04 22:41:49 +02:00
parent 07edcc4867
commit 2fbee75453
6 changed files with 85 additions and 20 deletions
@@ -61,6 +61,16 @@ class Message(Base):
        except StopIteration:
            return 0

+    @classmethod
+    def find_last(cls, mx_room: RoomID, tg_space: TelegramID) -> Optional['Message']:
+        return cls._one_or_none(cls.db.execute(
+            cls._make_simple_select(cls.c.mx_room == mx_room, cls.c.tg_space == tg_space)
+                .order_by(desc(cls.c.tgid)).limit(1)))
+
+    @classmethod
+    def delete_all(cls, mx_room: RoomID) -> None:
+        cls.db.execute(cls.t.delete().where(cls.c.mx_room == mx_room))
+
    @classmethod
    def get_by_mxid(cls, mxid: EventID, mx_room: RoomID, tg_space: TelegramID
                    ) -> Optional['Message']: