Tulir Asokan
113 lines
4.9 KiB
Python
113 lines
4.9 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2019 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from sqlalchemy import Column, UniqueConstraint, Integer, String, and_, func, desc, select
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from sqlalchemy.engine.result import RowProxy
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from typing import Optional, List
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from ..types import MatrixRoomID, MatrixEventID, TelegramID
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from .base import Base
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class Message(Base):
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__tablename__ = "message"
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mxid = Column(String) # type: MatrixEventID
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mx_room = Column(String) # type: MatrixRoomID
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tgid = Column(Integer, primary_key=True) # type: TelegramID
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tg_space = Column(Integer, primary_key=True) # type: TelegramID
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edit_index = Column(Integer, primary_key=True) # type: int
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__table_args__ = (UniqueConstraint("mxid", "mx_room", "tg_space", name="_mx_id_room"),)
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@classmethod
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def _one_or_none(cls, rows: RowProxy) -> Optional['Message']:
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try:
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mxid, mx_room, tgid, tg_space, edit_index = next(rows)
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return cls(mxid=mxid, mx_room=mx_room, tgid=tgid, tg_space=tg_space,
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edit_index=edit_index)
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except StopIteration:
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return None
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@staticmethod
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def _all(rows: RowProxy) -> List['Message']:
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return [Message(mxid=row[0], mx_room=row[1], tgid=row[2], tg_space=row[3],
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edit_index=row[4])
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for row in rows]
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@classmethod
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def get_all_by_tgid(cls, tgid: TelegramID, tg_space: TelegramID) -> List['Message']:
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return cls._all(cls.db.execute(cls.t.select().where(and_(cls.c.tgid == tgid,
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cls.c.tg_space == tg_space))))
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@classmethod
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def get_one_by_tgid(cls, tgid: TelegramID, tg_space: TelegramID, edit_index: int = 0
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) -> Optional['Message']:
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query = cls.t.select()
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if edit_index < 0:
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query = (query
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.where(and_(cls.c.tgid == tgid, cls.c.tg_space == tg_space))
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.order_by(desc(cls.c.edit_index))
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.limit(1)
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.offset(-edit_index - 1))
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else:
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query = query.where(and_(cls.c.tgid == tgid, cls.c.tg_space == tg_space,
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cls.c.edit_index == edit_index))
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return cls._one_or_none(cls.db.execute(query))
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@classmethod
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def count_spaces_by_mxid(cls, mxid: MatrixEventID, mx_room: MatrixRoomID) -> int:
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rows = cls.db.execute(select([func.count(cls.c.tg_space)])
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.where(and_(cls.c.mxid == mxid, cls.c.mx_room == mx_room)))
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try:
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count, = next(rows)
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return count
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except StopIteration:
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return 0
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@classmethod
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def get_by_mxid(cls, mxid: MatrixEventID, mx_room: MatrixRoomID, tg_space: TelegramID
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) -> Optional['Message']:
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return cls._select_one_or_none(and_(cls.c.mxid == mxid,
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cls.c.mx_room == mx_room,
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cls.c.tg_space == tg_space))
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@classmethod
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def update_by_tgid(cls, s_tgid: TelegramID, s_tg_space: TelegramID, s_edit_index: int,
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**values) -> None:
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with cls.db.begin() as conn:
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conn.execute(cls.t.update()
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.where(and_(cls.c.tgid == s_tgid, cls.c.tg_space == s_tg_space,
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cls.c.edit_index == s_edit_index))
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.values(**values))
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@classmethod
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def update_by_mxid(cls, s_mxid: MatrixEventID, s_mx_room: MatrixRoomID, **values) -> None:
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with cls.db.begin() as conn:
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conn.execute(cls.t.update()
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.where(and_(cls.c.mxid == s_mxid, cls.c.mx_room == s_mx_room))
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.values(**values))
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@property
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def _edit_identity(self):
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return and_(self.c.tgid == self.tgid, self.c.tg_space == self.tg_space,
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self.c.edit_index == self.edit_index)
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def insert(self) -> None:
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with self.db.begin() as conn:
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conn.execute(self.t.insert().values(mxid=self.mxid, mx_room=self.mx_room,
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tgid=self.tgid, tg_space=self.tg_space,
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edit_index=self.edit_index))
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