Backward conversations

[hamidqp]

On complex menus, if the update match the condition Nutgram call the last step (also do this for more one step back). Its also come handy on making forms like AskIceCream that user wants to change the previous answers before submit.

(yes its possible to create that condition on every step but for more steps and menus it takes so much duplicated code)

[sergix44]

I didn't quite get the issue but I try to explain:
the framework doesn't know anything about the flow, it only knows which step should call in this moment. For example:

class MyConversation extends Conversation {
    
    protected ?string $step = 'askName';
    
    public function askName(Nutgram $bot)
    {
        $bot->sendMessage('What is your name?');
        $this->next('confirmName');    
    }
    
    public function confirmName(Nutgram $bot)
    {
        $name = $bot->message()->text;
        $bot->sendMessage("Your name is $name, right?");
        $this->next('replyConfirmation');
    }

    public function replyConfirmation(Nutgram $bot)
    {
        $reply = $bot->message()->text;
        
        if ($reply === 'yes') {
            $bot->sendMessage('Nice!');
            $this->end();
        } else if ($reply === 'no') {
            $this->askName($bot);
        } else {
            $bot->sendMessage('Please reply with yes or no.');
        }
    }
}

As you can see, at any time you can call back a previous step direcly from another step, just passing the current $bot instance, in this case:

• If the user reply yes, the conversation ends.
• If the user reply no, it call direcly the first step, which restart the conversation.
• If the user replay other than yes or no, the confirmation step will be repeated

[hamidqp]

oh sorry i didn't know that every time step property from class is changing

protected function next(string $step): void
{
    $this->step = $step;
    $this->bot->stepConversation($this);
}

so i have to change it manually 😅