Symfony2学说实体未水合 [英] Symfony2 Doctrine entity not hydrated

问题描述

我从实体经理那里得到了一个实体成员，做了一个var_dump，除了与 Family ，所以我尝试了 var_dump（$ member-&get; getFamily（））; ，令人惊讶的是，唯一正确的值是该家庭的ID，所有其他属性均为null （数据库中不是这种情况……）

I get an entity Member from the entity manager, did a var_dump, everything ok except for the manyToOne relation with Family, so I tried a var_dump($member->getFamily()); and surprisingly, the only correct value was the family's ID, all the other properties were null (which is not the case in the database...)

这是我的会员资料

/**
 * @var Family
 *
 * @ORM\ManyToOne(targetEntity="AppBundle\Entity\Family", inversedBy="members")
 * @ORM\JoinColumn(name="family_id", referencedColumnName="id")
 */
private $family;

和我的家庭实体的东西

/**
 * @ORM\OneToMany(targetEntity="AppBundle\Entity\Member", mappedBy="family", cascade={"persist", "remove"})
 */
private $members;

所有获取器和设置器均由Doctrine生成。只是ID似乎被水合了，其余的就没有了。知道吗？

All getters and setters are generated by Doctrine. It's just that only the id seems to be hydrated, not the rest. Any idea ?

编辑：var_dump结果

private 'family' => 
object(Proxies\__CG__\AppBundle\Entity\Family)[427]
  public '__initializer__' => 
    object(Closure)[405]
  public '__cloner__' => 
    object(Closure)[406]
  public '__isInitialized__' => boolean false
  private 'id' (AppBundle\Entity\Family) => int 1
  private 'members' (AppBundle\Entity\Family) => null
  private 'adress' (AppBundle\Entity\Family) => null
  protected 'telephone' => null
  protected 'email' => null
  private 'nom' (AppBundle\Entity\Family) => null
  private 'isValid' (AppBundle\Entity\Family) => null

推荐答案

Doctrine延迟加载数据，除非您将其加入您的查询（并将其别名添加到select（）调用）。这意味着您将获得示例中的代理，而不是真正的家庭实体。

Doctrine lazy-loads data unless you join it in your query (and add its alias to the select() call). This means you get a proxy like in your example, not a real Family entity. The proxy only has the one field it has access to, the family_id.

在您调用非 getId 之前，该代理只有一个可以访问的字段。对象上的函数（如 getNom（））将保留为代理，但在该调用时，教义会执行查询以完全加载它。即使您将家庭代理人传递给树枝，也会发生这种情况。

Until you call a non-getId function on the object (like getNom()) this stays a proxy, but at that call doctrine does the query to load it completely. This will happen even if you pass that family proxy to twig.

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