Symfony 条令实体缺少指定的ID

Symfony 条令实体缺少指定的ID,symfony,doctrine-orm,Symfony,Doctrine Orm,我有两个实体,Contact和Global Example\EventBundle\Entity\EventGlobal: type: entity table: EventGlobal fields: id: id: true type: integer generator: strategy: AUTO oneToOne:

我有两个实体,Contact和Global

Example\EventBundle\Entity\EventGlobal:
    type: entity
    table: EventGlobal
       fields:
          id:
              id: true
              type: integer
              generator:
                strategy: AUTO
  oneToOne:
      EventKontakt:
      targetEntity: Example\EventBundle\Entity\EventContact
      mappedBy: EventGlobal
      cascade: ["persist"]



Example\EventBundle\Entity\EventContact:
    type: entity
    table: EventContact
    fields:
      EventGlobal_id:
       id: true
       type: integer
      oneToOne:
        EventGlobal:
         targetEntity: Example\EventBundle\Entity\EventGlobal
         inversedBy: EventContact
         joinColumns:
           EventGlobal_id:
             referencedColumnName: id
             nullable: false
他们工作得很好。现在我用Symfony构建一个表单

        public function buildForm(FormBuilder $builder, array $options)
{
    $builder
        ->add(Stuff..)
        ->add('EventContact', new EventContactType($this->options))
    ;
}
表单正确呈现,具有一对一的关系。 但是当我保存的时候,我得到了一个错误

我的错误是:

    Entity of type Example\EventBundle\Entity\EventContact is missing an assigned ID. The identifier generation strategy for this entity requires the ID field to be populated before EntityManager#persist() is called. If you want automatically generated identifiers instead you need to adjust the metadata mapping accordingly. 

我怎样才能保证我的安全是由Symfony/条令完成的

您需要为EventContact添加生成器

对于您的EventContact实体

fields:
   EventGlobal_id:
   id: true
   type: integer
   generator:
       strategy: AUTO

如果我只生成一个eventglobal而不生成eventcontact一次,然后返回以生成两个,则会部分起作用。id被破坏,链接到最后一个条目。