使用 JavaScript 和 MongoDB 创建 Prisma 架构

JavaScript

MongoDB

更新 Prisma 架构

¥Update the Prisma schema

打开 prisma/schema.prisma 文件并将默认内容替换为以下内容：

¥Open the prisma/schema.prisma file and replace the default contents with the following:

prisma/schema.prisma

datasource db {
  provider = "mongodb"
  url      = env("DATABASE_URL")
}

generator client {
  provider = "prisma-client-js"
}

model Post {
  id       String    @id @default(auto()) @map("_id") @db.ObjectId
  slug     String    @unique
  title    String
  body     String
  author   User      @relation(fields: [authorId], references: [id])
  authorId String    @db.ObjectId
  comments Comment[]
}

model User {
  id      String   @id @default(auto()) @map("_id") @db.ObjectId
  email   String   @unique
  name    String?
  address Address?
  posts   Post[]
}

model Comment {
  id      String @id @default(auto()) @map("_id") @db.ObjectId
  comment String
  post    Post   @relation(fields: [postId], references: [id])
  postId  String @db.ObjectId
}

// Address is an embedded document
type Address {
  street String
  city   String
  state  String
  zip    String
}

与 PostgreSQL 等关系数据库相比，模式的设置方式也存在一些细微的差异。

¥There are also a number of subtle differences in how the schema is setup when compared to relational databases like PostgreSQL.

例如，基础 ID 字段名称始终为 _id，并且必须与 @map("_id") 进行映射。

¥For example, the underlying ID field name is always _id and must be mapped with @map("_id").

欲了解更多信息，请查看 MongoDB 架构参考。

¥For more information check out the MongoDB schema reference.

更新 Prisma 架构​

更新 Prisma 架构