api.py 文件源码

def feeds_delete(self, ctx, *, feed: str):
        """Removes a feed from the channel.

        This will also delete the associated role so this
        action is irreversible.
        """

        query = 'DELETE FROM feeds WHERE channel_id=$1 AND name=$2 RETURNING *;'
        records = await ctx.db.fetch(query, ctx.channel.id, feed)
        self.get_feeds.invalidate(self, ctx.channel.id)

        if len(records) == 0:
            return await ctx.send('This feed does not exist.')

        for record in records:
            role = discord.utils.find(lambda r: r.id == record['role_id'], ctx.guild.roles)
            if role is not None:
                try:
                    await role.delete()
                except discord.HTTPException:
                    continue

        await ctx.send(f'{ctx.tick(True)} Removed feed.')