Prisma 客户端查询最新

Posted 2023-03-30

【中文标题】Prisma 客户端查询最新

【英文标题】：Prisma client query for latest

【发布时间】：2020-12-18 11:34:51

【问题描述】：

给定以下架构。如何使用 prisma2 客户端查询每个存储库的最新提交？

model Commit 
  id   String   @default(uuid()) @id
  date DateTime @default(now())


model Branch 
  id           String     @default(uuid()) @id
  commit       Commit     @relation(fields: [commitId],references: [id])
  commitId     String
  repository   Repository @relation(fields: [repositoryId],references: [id])
  repositoryId String


model Repository 
  id String @default(uuid()) @id

【参考方案1】：

我认为您的架构应该更像这样：

model Commit 
  id        String   @default(uuid()) @id
  branch    Branch   @relation(fields: [branchId], references: [id])
  createdAt DateTime @default(now())
  branchId  String


model Branch 
  id           String     @default(uuid()) @id
  name         String
  repository   Repository @relation(fields: [repositoryId], references: [id])
  commits      Commit[]
  repositoryId String


model Repository 
  id     String   @default(uuid()) @id
  branch Branch[]

您将能够以这种方式从存储库中的所有分支获取最新提交：

await prisma.repository.findMany(
    select: 
      branch: 
        select: 
          name: true,
          commits: 
            orderBy: 
              createdAt: 'desc',
            ,
            take: 1,
          ,
        ,
      ,
    ,
  )