Discord.py 如何拆分机器人消息？答案

【问题标题】：Discord.py How do I split a bots message?Discord.py 如何拆分机器人消息？
【发布时间】：2021-12-28 05:48:39
【问题描述】：

所以，我正在开发一个不和谐的信息机器人，这是命令之一。

@client.command()
async def rd(ctx):
    embed = discord.Embed(title="**[R&D Cost at every level]:**")
    embed.add_field(name="**Level//All Units ATK Bonus//March Size Increase//R&D Cost**", value= "|", inline=False)
    embed.add_field(name="6    0.6%    0    10", value='.', inline=False)
    embed.add_field(name="7    0.7%    0    20", value='.', inline=False)
    embed.add_field(name="8    0.8%    0    30", value='.', inline=False)
    embed.add_field(name="9    0.9%    0    35", value='.', inline=False)
    embed.add_field(name="10    1.0%    0    40", value='.', inline=False)
    embed.add_field(name="11    1.2%    0    45", value='.', inline=False)
    embed.add_field(name="12    1.5%    0    50", value='.', inline=False)
    embed.add_field(name="13    2.0%    0    60", value='.', inline=False)
    embed.add_field(name="14    2.5%    0    TBD", value='.', inline=False)
    embed.add_field(name="15    3.0%    0    TBD", value='.', inline=False)
    embed.add_field(name="16    3.5%    0    TBD", value='.', inline=False)
    embed.add_field(name="17    4.0%    0    TBD", value='.', inline=False)
    embed.add_field(name="18    4.5%    0    TBD", value='.', inline=False)
    embed.add_field(name="19    5.0%    0    TBD", value='.', inline=False)
    embed.add_field(name="20    5.5%    0    TBD", value='.', inline=False)
    embed.add_field(name="21    6.0%    0    TBD", value='.', inline=False)
    embed.add_field(name="22    6.5%    0    TBD", value='.', inline=False)
    embed.add_field(name="23    7.0%    0    TBD", value='.', inline=False)
    embed.add_field(name="24    7.5%    0    TBD", value='.', inline=False)
    embed.add_field(name="25    8.0%    1    TBD", value='.', inline=False)
    embed.add_field(name="26    8.5%    1    TBD", value='.', inline=False)
    embed.add_field(name="27    9.0%    1    TBD", value='.', inline=False)
    embed.add_field(name="28    9.5%    1    TBD", value='.', inline=False)
    embed.add_field(name="29    10.0%    1    TBD", value='.', inline=False)
    embed.add_field(name="30    10.5%    2    TBD", value='.', inline=False)
    embed.add_field(name="31    11.0%    2    TBD", value='.', inline=False)
    embed.add_field(name="32    11.5%    2    TBD", value='.', inline=False)
    embed.add_field(name="33    12.0%    2    1.27K", value='.', inline=False)
    embed.add_field(name="34    12.5%    2    1.46K", value='.', inline=False)
    embed.add_field(name="35    13.0%    3    1.87K", value='.', inline=False)
    embed.add_field(name="36    13.5%    3    2.02K", value='.', inline=False)
    embed.add_field(name="37    14.0%    3    2.18K", value='.', inline=False)
    embed.add_field(name="38    14.5%    3    2.36K", value='.', inline=False)
    embed.add_field(name="39    15.0%    3    2.54K", value='.', inline=False)
    embed.add_field(name="40    15.5%    4    2.73K", value='.', inline=False)
    embed.add_field(name="41    16.0%    4    2.87K", value='.', inline=False)
    embed.add_field(name="42    16.5%    4    3.07K", value='.', inline=False)
    embed.add_field(name="43    17.0%    4    3.29K", value='.', inline=False)
    embed.add_field(name="44    17.5%    4    3.51K", value='.', inline=False)
    embed.add_field(name="45    18.0%    5    3.74K", value='.', inline=False)
    embed.add_field(name="46    18.5%    5    3.99K", value='.', inline=False)
    embed.add_field(name="47    19.0%    5    4.09K", value='.', inline=False)
    embed.add_field(name="48    19.5%    5    4.34K", value='.', inline=False)
    embed.add_field(name="49    20.0%    5    4.44K", value='.', inline=False)
    embed.add_field(name="50    20.5%    6    4.54K", value='.', inline=False)

该命令效果很好，除了 discord 会在“embed.add_field(name="29 10.0% 1 TBD", value='.', inline=False)”上截断消息，因为在一条消息。

我将如何将此消息拆分为页面？我已经看到在哪里可以使用滚动浏览信息的表情符号，但我不确定如何在此处将其应用于此命令。

或者我怎样才能使它发布到多条消息中而不是尝试发布到整条消息中？

非常感谢任何帮助！

【问题讨论】：

看看这个问题是否对你有帮助stackoverflow.com/q/60877666/15240330
这能回答你的问题吗？ Pagination - Discord.py rewrite

标签： python-3.x discord.py chatbot

【解决方案1】：

这是我在开始实现按钮之前用于分页的代码

async def paginate(
    ctx: discord.ext.commands.context.Context,
    *embed_pages: typing.Union[discord.Embed, list[discord.Embed]],
    content=None,
    overwrite_footer=True,
    timeout=None,
):

    if isinstance(embed_pages[0], list):
        embed_pages = embed_pages[0]

    every_embed = list()
    if overwrite_footer:
        for index, each_embed in enumerate(embed_pages):
            each_embed.remove_footer()
            each_embed.set_footer(text=f"Page {index + 1} of {len(embed_pages)}")
            every_embed.append(each_embed)
    else:
        every_embed = embed_pages[:]

    sent_embed = await ctx.send(
        content=content, embed=every_embed[0]
    )  # Send the first page
    page_index = 0  # Set the starting index

    reactions = ["⬅️", "?", "➡️"]
    for each_reaction in reactions:
        await sent_embed.add_reaction(each_reaction)

    while True:
        try:
            payload = await bot.wait_for(
                "raw_reaction_add",
                check=lambda payload: payload.message_id == sent_embed.id
                and not payload.member == bot.user
                and payload.member.id
                == ctx.author.id,  # Do this if you want it to be author-only
                timeout=timeout,
            )
        except asyncio.TimeoutError:
            # timeout has been hit
            if overwrite_footer:
                every_embed[page_index].remove_footer()
                every_embed[page_index].set_footer(
                    text="Pagination traversal has timed out."
                )
                await sent_embed.edit(embed=every_embed[page_index])
                try:
                    await every_embed.clear_reactions()
                except:
                    pass
            return
        else:
            try:
                await sent_embed.remove_reaction(payload.emoji, payload.member)
            except discord.Forbidden:
                # Bot does not have permission
                pass

            if (
                str(payload.emoji.name) not in reactions
            ):  # Some user reacted with something else
                pass

            elif str(payload.emoji.name) == reactions[0]:  # Previous page
                if not page_index == 0:
                    page_index -= 1
                else:
                    page_index = len(every_embed) - 1
                await sent_embed.edit(embed=every_embed[page_index], content=content)

            elif str(payload.emoji.name) == reactions[1]:  # Goto page 0
                page_index = 0
                await sent_embed.edit(embed=every_embed[page_index], content=content)

            else:
                if not page_index == (len(every_embed) - 1):
                    page_index += 1
                else:
                    page_index = 0
                await sent_embed.edit(embed=every_embed[page_index], content=content)

这个函数是一个协程，必须是awaited，第一个参数必须是ctx（上下文），其余参数可能是discord.Embed对象或包含上述@987654326实例的单个列表@。

其余参数是可选的且不言自明。

这是一个用例：

import discord
import os
import asyncio
import typing
import Lorem  # Custom module
from discord.ext import commands
from dotenv import load_dotenv

load_dotenv()
bot = commands.Bot(command_prefix=">")


async def paginate(
    ctx: discord.ext.commands.context.Context,
    *embed_pages: typing.Union[discord.Embed, list[discord.Embed]],
    content=None,
    overwrite_footer=True,
    timeout=None,
):

    if isinstance(embed_pages[0], list):
        embed_pages = embed_pages[0]

    every_embed = list()
    if overwrite_footer:
        for index, each_embed in enumerate(embed_pages):
            each_embed.remove_footer()
            each_embed.set_footer(text=f"Page {index + 1} of {len(embed_pages)}")
            every_embed.append(each_embed)
    else:
        every_embed = embed_pages[:]

    sent_embed = await ctx.send(
        content=content, embed=every_embed[0]
    )  # Send the first page
    page_index = 0  # Set the starting index

    reactions = ["⬅️", "?", "➡️"]
    for each_reaction in reactions:
        await sent_embed.add_reaction(each_reaction)

    while True:
        try:
            payload = await bot.wait_for(
                "raw_reaction_add",
                check=lambda payload: payload.message_id == sent_embed.id
                and not payload.member == bot.user
                and payload.member.id
                == ctx.author.id,  # Do this if you want it to be author-only
                timeout=timeout,
            )
        except asyncio.TimeoutError:
            # timeout has been hit
            if overwrite_footer:
                every_embed[page_index].remove_footer()
                every_embed[page_index].set_footer(
                    text="Pagination traversal has timed out."
                )
                await sent_embed.edit(embed=every_embed[page_index])
                try:
                    await every_embed.clear_reactions()
                except:
                    pass
            return
        else:
            try:
                await sent_embed.remove_reaction(payload.emoji, payload.member)
            except discord.Forbidden:
                # Bot does not have permission
                pass

            if (
                str(payload.emoji.name) not in reactions
            ):  # Some user reacted with something else
                pass

            elif str(payload.emoji.name) == reactions[0]:  # Previous page
                if not page_index == 0:
                    page_index -= 1
                else:
                    page_index = len(every_embed) - 1
                await sent_embed.edit(embed=every_embed[page_index], content=content)

            elif str(payload.emoji.name) == reactions[1]:  # Goto page 0
                page_index = 0
                await sent_embed.edit(embed=every_embed[page_index], content=content)

            else:
                if not page_index == (len(every_embed) - 1):
                    page_index += 1
                else:
                    page_index = 0
                await sent_embed.edit(embed=every_embed[page_index], content=content)


@bot.event
async def on_ready():
    print(f"Sucessfully logged in as {bot.user}")


@bot.command()
async def start(ctx):

    await paginate(
        ctx,
        [
            discord.Embed(title="Answered by Achxy!", description=Lorem.lorem(6))
            for _ in range(100)
        ],
    )
    # We just generated 100 pages of Lorem Ipsum :D


@bot.command()
async def ping(ctx):
    # I made this command just to prove that the while loop earlier isn't blocking.
    embed = discord.Embed(
        title="Pong! ?",
        description=f"Current Latency of the bot is {round(bot.latency * 1000)}ms",
    )
    await ctx.reply(embed=embed)


bot.run(os.getenv("DISCORD_TOKEN"))

此代码将带来以下分页输出：

https://imgur.com/a/tmwGhpc

【讨论】：