如何确定 Doctrine 实体是否持久化? [英] How to determine if a Doctrine entity is persisted?

问题描述

Is there a way to determine if a parameter is an object that is already persisted by Doctrine or not? Something like an entity manager method that checks that an object is not a plain old object but actually something already in memory/persisted.

<?php
public function updateStatus(Entity $entity, EntityStatus $entityStatus)
{
    $entityManager = $this->getEntityManager();
    try {
        // checking persisted entity
        if (!$entityManager->isPersisted($entity)) { 
            throw new InvalidArgumentException('Entity is not persisted');
        }
        // ...
    } catch (InvalidArgumentException $e) {
    }
}

解决方案

EDIT: As said by @Andrew Atkinson, it seems

EntityManager->contains($entity)

is the preferred way now.

Previous answer: You have to use UnitOfWork api like this:

$isPersisted = DoctrineORMUnitOfWork::STATE_MANAGED === $entityManager->getUnitOfWork()->getEntityState($entity);

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