Entity\GroupRelGroup:
  type: entity
  table: group_rel_group
  repositoryClass: Entity\Repository\GroupRelGroupRepository
  fields:
    id:
      id: true
      type: integer
      unsigned: false
      nullable: false
      generator:
        strategy: IDENTITY
    group_id:
      type: integer
      unsigned: false
      nullable: false
    subgroup_id:
      type: integer
      unsigned: false
      nullable: false
    relation_type:
      type: integer
      unsigned: false
      nullable: false
  lifecycleCallbacks:
    prePersist:
      - before_save