php - ZF2、Oracle、SlmQueueDoctrine、ClearObjectManagerStrategy 不工作

Question

我有一个具有以下配置的 ZF2 项目。它使用 Doctrine ORM 和 SlmQueue。由于 SlmQueue 不支持我们的命名约定和 oracle 数据库，我们定制了 SlmQueueDoctrine。

我怀疑我的工作没有使用 ClearObjectManagerStrategy 并且在执行单个作业之前没有清除 ObjectManager。

它不反射(reflect)队列启动后的数据库修改。但如果我终止队列守护进程并重新启动，它会选择新的值。

如何在执行单个作业之前实现 ClearObjectManagerStrategy 并清除 ObjectManager？

我尝试了很多方法，但都没有成功。

Composer .json

{
    "repositories": [
        {
            "url": "https://github.com/pradeep-sanjaya/doctrine-extensions.git",
            "type": "git"
        }
    ],
    "require": {
        "php": ">=5.3.3",
        "zendframework/zendframework": "2.3.3",
        "doctrine/doctrine-orm-module": "0.7.*",
        "pradeep-sanjaya/doctrine-extensions": "dev-master",
        "spoonx/sxmail": "1.4.*",
        "slm/locale": "dev-master",
        "imagine/Imagine": "0.6.*",
        "tecnick.com/tcpdf": "dev-master",
        "slm/queue": "0.4.*",
        "slm/queue-doctrine": "0.4.*"
    }
}

配置/自动加载/slm_queue.local.php

<?php
return array(
    'slm_queue' => array(
        'queue_manager' => array(
            'factories' => array(
                'doctrineQueue' => 'SlmQueueDoctrine\Factory\DoctrineQueueFactory'
            ),
        ),
        'job_manager' => array(
            'factories' => array(
                'Report\Job\Rank' => 'Report\Job\RankFactory',
            ),
            'shared' => array(
                'Report\Job\Rank' => false
            ),
        ),
        'queues' => array(
            'doctrineQueue' => array(
                'table_name' => 'IOQUEUE'
            )
        )
    )
);
?>

module/Report/src/Report/Job/Rank.php

<?php
namespace Report\Job;

use DoctrineModule\Persistence\ObjectManagerAwareInterface;
use DoctrineModule\Persistence\ProvidesObjectManager as ProvidesObjectManagerTrait;
use SlmQueue\Job\AbstractJob;

use Application\Entity\Report;

use Application\Log\LoggerAwareInterface;
use Application\Log\LoggerAwareTrait;

use Application\Service\ReportService;

class Rank extends AbstractJob implements ObjectManagerAwareInterface, LoggerAwareInterface
{
    use LoggerAwareTrait;
    use ProvidesObjectManagerTrait;

    /**
     * @var ReportService
     */
    protected $reportService;

    /**
     * @var array
     */
    protected $reportId = array();

    public function setReportService(ReportService $reportService)
    {
        $this->reportService = $reportService;
    }

    /**
     * Execute the job
     *
     * @return void
     */
    public function execute()
    {
        //clear object manager does not work
        //$om = $this->getObjectManager();
        //$om->clear();

        $content = $this->getContent();
        $this->setReportId($content['reportId']);

        if (!empty($this->reportId)) {
            try {
                if (is_array($this->reportId)) {
                    foreach ($this->reportId as $reportId) {
                        $this->updateRank($reportId);
                    }
                    unset($reportId);
                } else {
                    $this->updateRank($this->reportId);
                }
            } catch (\Exception $exception) {
                echo "Exception message is {$exception->getMessage()} \n";
            }
        }
    }

    private function updateRank($reportId)
    {
        /* @var $report Report */
        $report = $this->reportService->getReport($reportId);
        $this->logInfo(print_r($report, true)); // this always return older db values, the values before it start queue deamon

        if (!$report instanceof Report) {
            return;
        }

        if (empty($rankData)) {
            return;
        }

        //more codes, application related logics

        $this->reportService->updateReportEntity($report);
    }

    private function setReportId($reportId)
    {
        if (is_numeric($reportId)) {
            $this->reportId = array($reportId);
        } elseif (is_array($reportId)) {
            $this->reportId = $reportId;
        } else {
            throw new \Exception('Expects reportId as int or array');
        }
    }
}

Answer 1

如果你的意思是它没有完全清楚，那么显然 this is not a bug , 但预期的行为。

可以查看 the documentation chapter 7.5. 调用 clear 方法时的行为:

When EntityManager#clear() is invoked, all entities that are currently managed by the EntityManager instance become detached.

在 your comment 你说“它不会刷新对象管理器的和当前事务”。这不是您可以通过调用 clear 期望的操作。根据文档，Detach 会导致以下操作:

The semantics of the detach operation, applied to an entity X are as follows:

• If X is a managed entity, the detach operation causes it to become detached. The detach operation is cascaded to entities referenced by X, if the relationships from X to these other entities is mapped with cascade=DETACH or cascade=ALL (see “Transitive Persistence”). Entities which previously referenced X will continue to reference X.
• If X is a new or detached entity, it is ignored by the detach operation.
• If X is a removed entity, the detach operation is cascaded to entities referenced by X, if the relationships from X to these other entities is mapped with cascade=DETACH or cascade=ALL (see “Transitive Persistence”). Entities which previously referenced X will continue to reference X.