使用 MongoDB discord.py 的提醒命令

Question

我是数据库和日期时间之类的新手。

我实际上想创建一个使用 MongoDB 作为数据库的提醒命令。我正在使用 Motor，因为我想与它一起使用 asyncio。请告诉我我是否在正确的道路上，如果我不是，那我该怎么办？

我已经使用电机设置了与 MongoDB 的基本连接。

这是我的代码。

import discord
from discord.ext import commands
import pymongo
from pymongo import MongoClient
import os
import asyncio
import motor
import motor.motor_asyncio

class Reminder(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

    @commands.Cog.listener()
    async def on_ready(self):
        print('Reminder is Ready.')


    ### MongoDB Variables ###

    @commands.command()
    async def remind(self, ctx, time, *, msg):


        ### MongoDB Variables ###
        mongo_url = os.environ['Mongodb_url']
        cluster = motor.motor_asyncio.AsyncIOMotorClient(str(mongo_url))
        db = cluster['Database']
        collection = db['reminder']

        
        ### Discord Variables ###
        author_id = ctx.author.id
        guild_id = ctx.guild.id


        ### Time Variables ###
        time_conversion = {"s": 1, "m": 60, "h": 3600, "d": 86400}
        remindertime = int(time[0]) * time_conversion[time[-1]]

        if ctx.author.bot:
            return

        if (await collection.count_documents({}) == 0):
            rem_info = {"_id": author_id, "GuildID": guild_id, "time": remindertime, "msg": msg}

            await collection.insert_one(rem_info)
            await ctx.send('Logged In')

        


def setup(bot):
    bot.add_cog(Reminder(bot))

什么是提醒命令，我想做什么？

基本上，该命令将需要提醒的时间量和需要提醒的主题作为参数。 在命令中指定的一定时间后，它会 DM 用户说“你让我提醒你关于 {topic}”。

我希望这是所有需要的信息。

Answer 1

附上问题下方的cmets：

检查是否该提醒用户您可以使用datetime 模块

import discord
from discord.ext import commands, tasks
import pymongo
from pymongo import MongoClient
import os
import asyncio
import motor
import motor.motor_asyncio

import datetime
from datetime import datetime, timedelta

### MongoDB Variables ###
mongo_url = os.environ['Mongodb_url']
cluster = motor.motor_asyncio.AsyncIOMotorClient(str(mongo_url))
db = cluster['Database']
collection = db['reminder']

class Reminder(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.reminder_task.start()

    def cog_unload(self):
        self.reminder_task.cancel()

    @tasks.loop(minutes=1.0)
    async def reminder_task(self):
        reminders = collection.find({})
        for reminder in reminders:
            # reminder should look like this: {"_id": 1234, "GuildID": 1234, "time": datetime_objekt, "msg": "some text"}
            now = datetime.now()
            if now >= reminder:
                # remind the user 
                guild = self.client.get_guild(reminder['GuildID'])
                member = guild.get_member(reminder['_id'])
                await member.send(f"reminder for {reminder['msg']}")
            



    @commands.Cog.listener()
    async def on_ready(self):
        print('Reminder is Ready.')


    @commands.command()
    async def remind(self, ctx, time, *, msg):
        """Reminder Command"""
        # like above
        
        # just change this
        ### Time Variables ###
        time_conversion = {"s": 1, "m": 60, "h": 3600, "d": 86400}
        remindseconds = int(time[0]) * time_conversion[time[-1]]
        remindertime = datetime.now() + timedelta(seconds=remindseconds)


        


def setup(bot):
    bot.add_cog(Reminder(bot))