即使对象被正确更新，数据似乎也没有持久化，我不明白为什么。这是我的实体:Article.php/***@varAttributeInArticle**@ORM\OneToMany(*targetEntity="XXX\DatabaseBundle\Entity\AttributeInArticle",*mappedBy="article"*)*/private$attributeInArticles;....publicfunction__construct(){$this->attributeInArticles=newArrayCollection();}/***@returnAt