CODEWITHSUNDEEP
python-3.xtelegram-bot
Sergey Ronin
Sergey Ronin

Reputation: 776

Error when trying to edit a Telegram message

I have a list of items which I select one randomly and send it to the user. Then, I have an inline button just below the text message to shuffle the list of items once again.

Like this:

keyboard = types.InlineKeyboardMarkup()
shuffle_button = types.InlineKeyboardButton(text='Shuffle Again', callback_data='shuffle_action')
keyboard.add(shuffle_button)

@bot.message_handler(commands=['shuffle'])
def display_shuffle(message):
    cid = message.chat.id
    bot.send_message(cid, random_song(), reply_markup=keyboard, parse_mode='HTML')

Then I've made a callback query handler that changes the contents of the sent message if the user requests to randomize it once again:

@bot.callback_query_handler(func=lambda c: c.data == 'next_action')
def shuffle_more(call):
    cid = call.message.chat.id
    mid = call.message.message_id

    bot.edit_message_text(chat_id=cid, message_id=mid, text=random_song(), reply_markup=keyboard)

The enormous problem I'm having with this is that sometimes the random_song() function I'm using to shuffle the list sometimes randomly returns the same exact message as I've displayed the previous time. Since you cannot edit a message to the same message, I get an error.

How can I change my code so this does not happen? P.S. I'm using the pyTelegramBotAPI wrapper in py3.

Upvotes: 3

Views: 1825

Answers (2)

Sergey Ronin
Sergey Ronin

Reputation: 776

This is not the most elegant solution I've come up with, but it works:

chosen_song = random_song()

while True:
    try:
        bot.edit_message_text(cid, mid, chosen_song)
    except:
        chosen_song = random_song()

Upvotes: 0

Maak
Maak

Reputation: 5038

The CallbackQuery contains the current Message and therefore has a field text containing the current text.

You should be able to read the current text with call.message.text and adapt the random_song() to make sure it's not the same.

Upvotes: 1

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