让机器人重新发送嵌入

Question

所以这个想法是让机器人将嵌入发送到频道，然后用新的页脚重新发送它
这是我正在测试的代码：

import discord
import os
from discord.ext import commands


intents = discord.Intents.default()
intents.members = True
bot = commands.Bot(command_prefix=',', intents=intents)


@bot.event
async def on_ready():
  global test_channel, bot_command_channel, cu_free_games_channel
  test_channel = bot.get_channel(868816978293452841)
  bot_command_channel = bot.get_channel(808734570283139162)
  cu_free_games_channel = bot.get_channel(873018877020373043)

  print('bot is ready')

@bot.event
async def on_message(message):


  if message.content.startswith('!test'):
    embed_old = discord.Embed(
      title= '''this is the title''', 
      description= '''this is the description''', 
      color= discord.Color.red(),
      # url= '''https://www.google.com/'''
      )
    embed_old.set_footer(text='old footer')
    await bot_command_channel.send(embed=embed_old)


  if message.channel == bot_command_channel:
    if not len(message.embeds):
      return
    else:
      embed_content_in_dict = message.embeds[0].to_dict()
      print(embed_content_in_dict) #prints out the embed's content

      for embed in embed_content_in_dict:
        embed_new = discord.Embed(
          title= embed_content_in_dict["title"],
          type= embed_content_in_dict["type"],
          description= embed_content_in_dict["description"],
          url = embed_content_in_dict["url"], # if the URL in embed_old is commented out, it throws an exception
          )
        embed_new.set_footer(text='new footer')
        await test_channel.send(embed=embed_new)
        return


  

bot.run(os.getenv('TOKEN'))

这是在控制台中打印的内容：

bot is ready

{'footer': {'text': 'old footer'}, 'color': 15158332, 'type': 'rich', 'description': 'this is the description', 'title': 'this is the title'}

Ignoring exception in on_message
Traceback (most recent call last):
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 343, in _run_event
    await coro(*args, **kwargs)
  File "main.py", line 47, in on_message
    url = embed_content_in_dict["url"], # if the URL in embed_old is commented out, it throws an exception
KeyError: 'url'

那么我如何检测嵌入是否有 url？
以及如何让机器人重新发送原始嵌入及其所有内容，无论它是否有 URL

Answer 1

对于您的第一个问题，您可以轻松检查嵌入是否没有 URL：

只需检查名为“url”的键是否在 embed_content_in_dict 变量中

if 'url' in embed_content_in_dict.keys():
   #the embed has a url
   #do something
else:
  #the embed does not have a url
  #do something

第二个问题：

您可以使用：embed_content_in_dict.get('url') 代替 embed_content_in_dict['url']

如果该嵌入没有 url，.get('url') 将返回 None