How can I increment and save an integer value in a single operation to avoid race conditions?

Interlated

5/29/23, 8:05 PM

With MySQL, I could use the following query.

INSERT into mytable (logins)
 SELECT max(logins) + 1
 FROM mytable

I am currently using the following code.

$query = \Drupal::entityQuery('node')->condition('type', 'bond')
  ->condition('field_para_identifier.entity:paragraph.field_bond_pending_id', 'NULL', 'IS NOT NULL')
  ->sort('field_para_identifier.entity:paragraph.field_bond_pending_id', 'DESC')
  ->range(0, 1);
$results = $query->execute();
$biggest_pending_id_entity_id = array_pop($results);
$next_pending_id = 1;

if ($biggest_pending_id) {
  $next_pending_id = intval($biggest_pending_id) + 1;
}

$identifier = $bond->get('field_para_identifier')->getValue();
$identifierParagraph = Paragraph::load($identifier[0]['target_id']);
$identifierParagraph->set('field_bond_pending_id', $next_pending_id);
$identifierParagraph->save();

0 + 0

database

Jaypan

5/30/23, 12:38 AM

You can use a transaction with a rollback: https://www.drupal.org/docs/drupal-apis/database-api/database-transactions

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How can I increment and save an integer value in a single operation to avoid race conditions?

TH: ฉันจะเพิ่มและบันทึกค่าจำนวนเต็มในการดำเนินการครั้งเดียวเพื่อหลีกเลี่ยงสภาวะการแย่งชิงได้อย่างไร

RO: Cum pot incrementa și salva o valoare întreagă într-o singură operațiune pentru a evita condițiile de cursă?

RU: Как я могу увеличить и сохранить целочисленное значение в одной операции, чтобы избежать условий гонки?

VI: Làm cách nào tôi có thể tăng và lưu một giá trị số nguyên trong một thao tác để tránh các điều kiện tương tranh?

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