Theo's Typesafe Cult•2y ago

Migrating from Prisma client to Kysely issue

I am evaluating various aspects of changing from Prisma client to Kysely but i seem to have hit a small snag basic tutorial i followed was from nexxel https://www.nexxel.dev/blog/typesafe-database in my prisma schema i have

model Recipe {
  id           String   @id @default(cuid())
  name         String
  prepTime     String
  cookTime     String
  totalTime    String
  servings     String?
  description  String?
  ingredients  Json     @default("[]")
  instructions Json     @default("[]")
  updatedAt    DateTime @updatedAt
}

model Recipe {
  id           String   @id @default(cuid())
  name         String
  prepTime     String
  cookTime     String
  totalTime    String
  servings     String?
  description  String?
  ingredients  Json     @default("[]")
  instructions Json     @default("[]")
  updatedAt    DateTime @updatedAt
}

in prisma i was able to do this

    return await ctx.prisma.recipe.create({
        data: {
          name: input.name,
          description: input.description,
          ingredients: input.ingredients.split('\n'),
          instructions: input.instructions.split('\n'),
          prepTime: input.prepTime,
          cookTime: input.cookTime,
          totalTime: input.totalTime,
          servings: input.servings,
        },
      })

    return await ctx.prisma.recipe.create({
        data: {
          name: input.name,
          description: input.description,
          ingredients: input.ingredients.split('\n'),
          instructions: input.instructions.split('\n'),
          prepTime: input.prepTime,
          cookTime: input.cookTime,
          totalTime: input.totalTime,
          servings: input.servings,
        },
      })

but in Kysely its forcing me to add id and updated at otherwise it overloads saying it needs id and updatedAt

return await db.insertInto('Recipe').values({
        id: '342432', // how do i handle this autogenrating this from the DB?
        updatedAt: new Date(), // how do i handle this autogenrating this from the DB?
        name: input.name,
        description: input.description,
        ingredients: input.ingredients.split('\n'),
        instructions: input.instructions.split('\n'),
        prepTime: input.prepTime,
        cookTime: input.cookTime,
        totalTime: input.totalTime,
        servings: input.servings,
      }).executeTakeFirst()

return await db.insertInto('Recipe').values({
        id: '342432', // how do i handle this autogenrating this from the DB?
        updatedAt: new Date(), // how do i handle this autogenrating this from the DB?
        name: input.name,
        description: input.description,
        ingredients: input.ingredients.split('\n'),
        instructions: input.instructions.split('\n'),
        prepTime: input.prepTime,
        cookTime: input.cookTime,
        totalTime: input.totalTime,
        servings: input.servings,
      }).executeTakeFirst()

I tried reading the kysely documentation but couldnt find it personally

11 Replies

needmorewood•2y ago

my understanding is that the type def given to kysely shows id and updated as mandatory fields ill post that setup as well (more or less the same from the nexxel post)

import type { Recipe } from '@prisma/client/edge'
import { Kysely } from 'kysely'
import { PlanetScaleDialect } from 'kysely-planetscale'

interface Database {
  Recipe: Recipe
}

export const db = new Kysely<Database>({
  dialect: new PlanetScaleDialect({
    host: 'aws.connect.psdb.cloud',
    username: process.env.DATABASE_USERNAME,
    password: process.env.DATABASE_PASSWORD,
  }),
})

import type { Recipe } from '@prisma/client/edge'
import { Kysely } from 'kysely'
import { PlanetScaleDialect } from 'kysely-planetscale'

interface Database {
  Recipe: Recipe
}

export const db = new Kysely<Database>({
  dialect: new PlanetScaleDialect({
    host: 'aws.connect.psdb.cloud',
    username: process.env.DATABASE_USERNAME,
    password: process.env.DATABASE_PASSWORD,
  }),
})

and the type is

export type Recipe = {
  id: string
  name: string
  prepTime: string
  cookTime: string
  totalTime: string
  servings: string | null
  description: string | null
  ingredients: Prisma.JsonValue
  instructions: Prisma.JsonValue
  updatedAt: Date
}

export type Recipe = {
  id: string
  name: string
  prepTime: string
  cookTime: string
  totalTime: string
  servings: string | null
  description: string | null
  ingredients: Prisma.JsonValue
  instructions: Prisma.JsonValue
  updatedAt: Date
}

Unknown User•2y ago

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needmorewood•2y ago

Ahhh ty Where is generated from?

Unknown User•2y ago

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needmorewood•2y ago

looks good, do you have any way to handle this, i think the appeal of prisma was generating all these things on the fly and it automagically working guess this might be a noob TS question but whats the sane way to extend the recipe type to overide id and updated at?

Igal•2y ago

i think the appeal of prisma was generating all these things on the fly and it automagically working

there's a 3rd party library just for that https://github.com/RobinBlomberg/kysely-codegen

GitHub

GitHub - RobinBlomberg/kysely-codegen: Generate Kysely type definit...

Generate Kysely type definitions from your database - GitHub - RobinBlomberg/kysely-codegen: Generate Kysely type definitions from your database

needmorewood•2y ago

awesome ill take a look at that

Igal•2y ago

that id field should probably be defined as GeneratedAlways<string> to make it read-only.

guess this might be a noob TS question but whats the sane way to extend the recipe type to overide id and updated at?

probably Omit<Recipe, 'id' | 'updatedAt'> & { id: SomeType, updatedAt: SomeOtherType }

needmorewood•2y ago

awesome thanks for both of your help

Unknown User•2y ago

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needmorewood•2y ago

The cohesiveness and dx is fantastic, just seeing how many ms I can shave off. Having problems with vercel and netlify though which is wild to me

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Migrating from Prisma client to Kysely issue