58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
from .common import EventBuilder, EventCommon, name_inner_event
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from ..tl import types
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@name_inner_event
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class MessageDeleted(EventBuilder):
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"""
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Occurs whenever a message is deleted. Note that this event isn't 100%
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reliable, since Telegram doesn't always notify the clients that a message
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was deleted.
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.. important::
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Telegram **does not** send information about *where* a message
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was deleted if it occurs in private conversations with other users
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or in small group chats, because message IDs are *unique* and you
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can identify the chat with the message ID alone if you saved it
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previously.
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Telethon **does not** save information of where messages occur,
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so it cannot know in which chat a message was deleted (this will
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only work in channels, where the channel ID *is* present).
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This means that the ``chats=`` parameter will not work reliably,
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unless you intend on working with channels and super-groups only.
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Example
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.. code-block:: python
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from telethon import events
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@client.on(events.MessageDeleted)
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async def handler(event):
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# Log all deleted message IDs
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for msg_id in event.deleted_ids:
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print('Message', msg_id, 'was deleted in', event.chat_id)
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"""
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@classmethod
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def build(cls, update, others=None, self_id=None):
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if isinstance(update, types.UpdateDeleteMessages):
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return cls.Event(
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deleted_ids=update.messages,
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peer=None
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)
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elif isinstance(update, types.UpdateDeleteChannelMessages):
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return cls.Event(
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deleted_ids=update.messages,
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peer=types.PeerChannel(update.channel_id)
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)
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class Event(EventCommon):
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def __init__(self, deleted_ids, peer):
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super().__init__(
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chat_peer=peer, msg_id=(deleted_ids or [0])[0]
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)
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self.deleted_id = None if not deleted_ids else deleted_ids[0]
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self.deleted_ids = deleted_ids
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