javascript - 模型之间的多重关系

Question

我正在努力理解如何在两个模型之间建立多重关系。采取以下措施：

model User {
  id             Int       @default(autoincrement()) @id
  goalBoard      GoalBoard[]
  ...
}

model GoalBoard {
  id          Int         @default(autoincrement()) @id
  goalOwner   User        @relation(fields: [goalOwnerId], references: [id])
  goalOwnerId Int
  invitee     User[]      @relation(name: "invitee") //?
  invited     User[]      @relation(name: "invited") //?
  ...
  @@unique([goalOwnerId, active])
}

'invitee' & 'invited' 字段中将有多个用户。我不清楚将 a 添加name到@relation.

因此，为了理解起见，命名@relation. 其次，我将如何根据上述要求建立关系。

谢谢你。

Answer 1

这是处理多个多对多关系的正确且清晰的方法

model User {
  id               Int         @default(autoincrement()) @id
  goalBoardInvitee GoalBoard[] @relation(name: "UserGoalBoardInvitee")
  goalBoardInvited GoalBoard[] @relation(name: "UserGoalBoardInvited")
  ...
}

model GoalBoard {
  id          Int         @default(autoincrement()) @id
  goalOwner   User        @relation(fields: [goalOwnerId], references: [id])
  goalOwnerId Int
  invitee     User[]      @relation(name: "UserGoalBoardInvitee") //?
  invited     User[]      @relation(name: "UserGoalBoardInvited") //?
  ...
  @@unique([goalOwnerId, active])
}

要了解我们为什么这样做，请阅读Prisma 关系文档