php - Doctrine2 oneToMany 关系 yaml

Question

我有一个名为“Object”的实体，这是 yaml 代码:

Entities\Object:
  type: entity
  table: objects
  id:
    id:
      type: integer
      generator:
      strategy: AUTO
  fields:
    parent_id: 
      type : integer
  oneToOne:
    type:
      targetEntity: ObjectType
      joinColumn:
        name: type_id
        referencedColumnName: id

我想添加一个子父关系(oneToMany)，但我不知道如何？我希望 mysql 表具有以下结构:id、type_id、parent_id 和实体具有这些选项 $object->getParent() (单个对象)和 $object->getChildren() (对象集合)。希望有人能帮忙，thnx

Answer 1

你正在尝试做一对多， self 引用，它应该是这样的:

Entities\Objects:
  type: entity
  table: objects
  id:
    id:
      type: integer
      generator:
        strategy: AUTO
  oneToMany:
    children:
      targetEntity: Objects
      mappedBy: parent
  manyToOne:
    parent:
      targetEntity: Objects
      inversedBy: children
      joinColumn:
        name: parent_id
        referencedColumnName: id

看说明书Association Mapping