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

16 votes205 views3 answers
Make a forign key in migrations using laravel 8
PHP Laravel
0 vote168 views1 answer
Does heat prevent radiation
PHP
1 vote201 views1 answer
And php
PHP
0 vote207 views1 answer
Installer composer dans ionos
PHP
2 votes209 views3 answers
Laravel check if field has changed
PHP Laravel
12 votes353 views5 answers
Shortcode php wordpress
PHP Wordpress
0 vote178 views1 answer
How to loop array in laravel
PHP
0 vote184 views1 answer
Laravel event generate
PHP
0 vote186 views1 answer
Magento2 memory limit
PHP
10 votes209 views2 answers
Php json data to array
PHP