如何删除prisma中包含所有相关记录的记录
我知道我的问题与以下章节有关:如何删除prisma中包含所有相关记录的记录,prisma,Prisma,我知道我的问题与以下章节有关: 但是,我不明白如何在(JavaScript)prisma客户端中删除一条记录及其所有相关记录 例如,my是这样的: type Board { id: ID! @unique createdAt: DateTime! updatedAt: DateTime! owner: User! @relation(name: "BoardOwnershipRelation") title: String! description: String
type Board {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "BoardOwnershipRelation")
title: String!
description: String
taskGroups: [TaskGroup!]!
}
type TaskGroup {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "TaskGroupOwnershipRelation")
board: Board!
title: String!
description: String
precedence: Int
tasks: [Task!]!
}
type Task {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "TaskOwnershipRelation")
taskGroup: TaskGroup!
title: String!
description: String
dueDate: DateTime
precedence: Int
items: [TaskItem!]!
assignedTo: [User!]! @relation(name: "AssignmentRelation")
}
type TaskItem {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "TaskItemOwnershipRelation")
task: Task!
title: String!
description: String
checked: Boolean!
precedence: Int
}
如何删除包含所有相关任务组、任务和任务项的董事会
编辑:
我最近尝试了这个解决方案,效果也不错
// e.g. this is in my GraphQL resolvers async function...
await prisma.deleteManyTaskItems({
task: {
taskGroup: {
board: {
id: boardId
}
}
}
});
await prisma.deleteManyTasks({
taskGroup: {
board: {
id: boardId
}
}
});
await prisma.deleteManyTaskGroups({
board: {
id: boardId
}
});
return await prisma.deleteBoard({ id: boardId });
但是,对于我的问题有更好的解决方案吗?您可以使用@relation指令的“onDelete”参数来指定删除实体()
您只需更改数据模型,如下所示:
type Board {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "BoardOwnershipRelation")
title: String!
description: String
taskGroups: [TaskGroup!]! @relation(name: "BoardTaskGroups" onDelete: CASCADE)
}
type TaskGroup {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "TaskGroupOwnershipRelation")
board: Board! @relation(name: "BoardTaskGroups")
title: String!
description: String
precedence: Int
tasks: [Task!]! @relation(name: "TaskGroupsTask" onDelete: CASCADE)
}
type Task {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "TaskOwnershipRelation")
taskGroup: TaskGroup! @relation(name: "TaskGroupsTask")
title: String!
description: String
dueDate: DateTime
precedence: Int
items: [TaskItem!]! @relation(name: "TaskTaskItem" onDelete: CASCADE)
assignedTo: [User!]! @relation(name: "AssignmentRelation")
}
type TaskItem {
id: ID! @unique
createdAt: DateTime!
updatedAt: DateTime!
owner: User! @relation(name: "TaskItemOwnershipRelation")
task: Task! @relation(name: "TaskTaskItem")
title: String!
description: String
checked: Boolean!
precedence: Int
}
然后删除你的董事会。所有其他删除将由Prisma完成