symfony doctrine 无法在for循环中提交一个事务

Question

我对这段代码有疑问：

foreach($commandes as $commande)
  $conn = $this->em->getConnection();
  $conn->beginTransaction();
  $conn->setAutoCommit(false);

  try {
    $tmp = $this->checkCommande($commande); // in this function there is multiple relationship created and pushed 

    if ($tmp) {
        $result = $tmp['result'];
        if ('OK' === $result) {
            $commande->setCompleted(true);
            $this->em->flush();
            $conn->commit();
        }
    }
  } catch (\Exception $e) {
    $conn->rollBack();
    throw $e;
  }
}

如果我有多个命令，并且如果一个未提交，则所有命令都不会提交。

Answer 1

您设置了一个条件，只有在'OK' === $result时才能提交命令。 如果不满足此条件，则会抛出异常并回滚更改。 要解决此问题，您应该将$conn->commit()调用移到此条件之外，除非抛出异常，否则始终会提交这些更改。 新代码可能如下所示：

foreach($commandes as $commande)
{
  $conn = $this->em->getConnection();
  $conn->beginTransaction();
  $conn->setAutoCommit(false);

  try {
    $tmp = $this->checkCommande($commande); // in this function there is multiple relationship created and pushed 

    if ($tmp) {
        $result = $tmp['result'];
        if ('OK' === $result) {
            $commande->setCompleted(true);
            $this->em->flush();
        }
    }

    $conn->commit(); // outside this line 
  } catch (\Exception $e) {
    $conn->rollBack();
    throw $e;
  }
}