Getting the author of MessageReference object-CodePudding

My Discord bot has a command that needs to check 2 discord user ID's: ctx.message.author.id and the author ID of the "reply" message.

Getting the id of the first user is easy, because this is just the id of the one who used the command:

def check_two_ids(ctx):

    id1 = ctx.message.author.id
    # come other code

Getting the second id is way more difficult as the command only works if it is used as a reply. So I tried to use the MessageReference object and get the second id out of that somehow. Here is what I tried:

def check_two_ids(ctx):

    id1 = ctx.message.author.id
    message_reference = ctx.message.reference
    id2 = message.reference.author.id
    # do some more stuff with these two ids

Running this code returns an error: AttributeError: 'MessageReference' object has no attribute 'author'. I thought this would be similar to a normal Message object which has these parameters.

Can I get the second ID with this approach somehow?

CodePudding user response：

The reason why MessageReference doesn't directly have an author attribute is because it simply isn't provided by Discord API. However under certain circumstances (when the reference is pointing to a reply), Discord API will provide the resolved message object for the reference which you can access with message.reference.resolved.

def check_two_ids(ctx):
    id1 = ctx.message.author.id
    message_reference = ctx.message.reference
    if not (message_reference and message_reference.resolved and
            isinstance(message_reference.resolved, discord.Message)):
        return
    id2 = message_reference.resolved.author.id

There's a few caveats with the resolved attribute though:

It could be None, Discord API fails to fetch it.
It count be DeletedReferencedMessage, the reference was deleted.