Optimistic Locking Laravel

<?php

function transfer($fromAccountId, $toAccountId, $balance)
{
  $fromQuery = Account::whereId($fromAccountId);
  if (! $fromQuery->exists()) {
    throw new InvalidAccountException();
  }

  $toQuery = Account::whereId($toAccountId);
  if (! $toQuery->exists()) {
    throw new InvalidAccountException();
  }

  do {
    $fromAccount = $fromQuery->first();
    if ($fromAccount->balance < $amount) {
      throw new InsufficientBalanceException();
    }
    $updated = Account::whereId($fromAccountId)
      ->where('updated_at', '=', $fromAccount->updated_at)
      ->update(['balance' => $fromAccount->balance - $amount]);
  } while (! $updated);

  do {
    $toAccount = $toQuery->first();    
    $updated = Account::whereId($toAccountId)
      ->where('updated_at', '=', $toAccount->updated_at)
      ->update(['balance' => $toAccount->balance + $amount]);
  } while (! $updated);

  $transaction = new Transaction();
  $transaction->from_account_id = $fromAccountId;
  $transaction->to_account_id   = $toAccountId;
  $transaction->amount          = $amount;
  $transaction->save();
}

Source: gist.githubusercontent.com

Similar codes

18 votes149 views2 answers
- root composer.json requires php ^7.1.3 but your php version (8.0.3) does not satisfy that requirement.
PHP
14 votes130 views6 answers
Query builder
PHP
1 vote156 views1 answer
Get value by today yesterday in laravel
PHP Laravel
4 votes148 views4 answers
Laravel check if table has column
PHP Laravel
0 vote141 views2 answers
Php pop up message
PHP
90 votes188 views6 answers
Php replace string within string
PHP
4 votes127 views3 answers
Softdeletes laravel
PHP
1 vote153 views1 answer
Laravel artisan call with confirm
PHP Laravel
0 vote118 views1 answer
Fetch data from live website curl php
PHP
0 vote195 views1 answer
Convert time to 24 hour format laravel
PHP Laravel