How to store user data and display them according to their corresponding callbacks-CodePudding

Here's my code:

from telegram import *
from telegram.ext import *
import telegram, telegram.ext

u = Updater('TOKEN', use_context=True)
j=u.job_queue

def set(update: Update, context: CallbackContext):
    user_says=' '.join(context.args)
    user_says=user_says.split(' ')
    global item, chat_id
    item=user_says[1:]
    chat_id=update.effective_chat.id
    j.run_once(callback, int(user_says[0]))

def callback(context: telegram.ext.CallbackContext):
    context.bot.send_message(chat_id=chat_id, text=f'Great you won {item}')

if __name__ == '__main__':
    dp = u.dispatcher
    dp.add_handler(CommandHandler('set', set))
    u.start_polling()
    u.idle()

So the problem is if someone start the timer and in the mean time when the timer is running someone else (or the same person) start different timer the value of item get replaced with the newest one, it will display wrong item value for all the timers which are already running in that time (except for the latest one) how can I store items and show them with their corresponding timer's callback

Hope you understood my question :)

CodePudding user response：

You may simply use a dict to store the items and the chat_id with an UUID as a key, then, pass the UUID to the callback function and retrieve the items from the dict.

from uuid import uuid4
items = {}

def set(update: Update, context: CallbackContext):
    user_says=' '.join(context.args)
    user_says=user_says.split(' ')
    chat_id=update.effective_chat.id
    uid = uuid4()
    items[uid] = {"id": chat_id, "item": user_says[1:]}
    j.run_once(callback, int(user_says[0]), context=uid)

def callback(context: telegram.ext.CallbackContext):
    uid = context.job.context
    chat_id = items[uid]["id"]
    context.bot.send_message(chat_id=chat_id, text=f'Great you won {items[uid]["item"]}')
    del items[uid]

Read more about multi-users handling in How to manage more users in a telegram bot?