Is there a shorter way to phrase this query? (Want to establish relationship when creating a record in Prisma)

model Case{
  id String @id @default(uuid())
  caseId Int @unique @default(autoincrement())
  title String
  status Status[]

}


model Status{
  id String @id @default(uuid())
  statusId Int @unique @default(autoincrement())
  title String
  caseId Int
  story Story[]
  case Case? @relation(fields: [caseId],references: [caseId], onDelete: Cascade)
}

Consider the following scenario where we have two Prisma models. The "Case" model is considered the main one and can be created with just a title. However, in order to create a "Status", it must be associated with a specific case through its caseId field. This means that when creating a new Status, the request body should look like this:

{
  "caseId": 1,
  "title": "string"
}

Currently, the create code for the Status entity looks like this:

async create(status: CreateStatusDto) {
    const {caseId, ... rest} = status
    if(!caseId){
      throw new BadRequestException('Please Input Case Id')
    }
    return await this.prismaService.status.create({
      data: {
        ...rest,
        case: {
          connect: {
            caseId: caseId
          }
        }
      }
    })
  }

This implementation may not be optimal in terms of readability and efficiency. Are there any suggestions on how to improve it?

Answer №1

To start off, employing a ValidationPipe can help verify the validity of the caseId.

Additionally, exploring Exception Filters could enhance the clarity of your code and simplify your work (rather than prompting the user to fix the issue yourself, let the exception describe what occurred).

Regarding Prisma, refer to this example in Prisma's documentation on nested writes:

const createUserAndPost = await prisma.user.create({
  data: {
    email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="7d18110e1c3d0d0f140e101c531412">[email protected]</a>',
    name: 'Elsa Prisma',
    posts: {
      create: [
        { title: 'How to make an omelette' },
        { title: 'How to eat an omelette' },
      ],
    },
  },
})

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