Wasp-lang•9mo ago

Cascade Deletes with transaction

Hi! Loving Wasp so far. Just one question at this point. How do we take advantage of prisma.$transaction() in actions.ts in order to ensure all deletes are successful? Thank you!

4 Replies

KarateSheets•9mo ago

I should specify this is via the OpenSaas boilerplate.

martinsos•9mo ago

Hey @KarateSheets , that is a great question! Check this out: https://wasp-lang.dev/docs/data-model/entities#using-entities-directly -> you can get access to prisma by doing import prisma from '@wasp/dbClient' (in docs it is named prismaClient but it is really just prisma. And then you should be able to do:

  const [posts, totalPosts] = await prisma.$transaction([
    context.entities.Post.findMany({
      where: { title: { contains: 'prisma' } }
    }),
    context.entities.Post.count(),
  ])

  const [posts, totalPosts] = await prisma.$transaction([
    context.entities.Post.findMany({
      where: { title: { contains: 'prisma' } }
    }),
    context.entities.Post.count(),
  ])

Notice I used context.entities.Post instead of prisma.post, because I assumed you are inside of Operation (be it Action or Query) and have that available. If not, you can even go with prisma.post, although context.entities.Post is a bit more "by the book", in Wasp world.

Entities | Wasp

Entities are the foundation of your app's data model. In short, an Entity defines a model in your database.

KarateSheets•9mo ago

Thank you! This is perfect :).

martinsos•9mo ago

Great @KarateSheets , glad to hear that :)!

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Cascade Deletes with transaction