Prisma 7 Compatibility

PalJS v9 is designed for Prisma 7. This page covers the key Prisma 7 changes and how PalJS handles them.

Prisma 7 Breaking Changes

1. New Generator Provider

prisma

// Before (Prisma 6)
generator client {
  provider = "prisma-client-js"
}
 
// After (Prisma 7)
generator client {
  provider = "prisma-client"
  output   = "../src/generated/prisma"
}

2. Driver Adapter Architecture

Prisma 7 requires explicit driver adapters instead of direct database connections:

typescript

import { PrismaPg } from '@prisma/adapter-pg';
import { PrismaClient } from './generated/prisma/client';
 
const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL });
const prisma = new PrismaClient({ adapter });

Available adapters:

@prisma/adapter-pg — PostgreSQL
@prisma/adapter-libsql — SQLite / LibSQL / Turso
@prisma/adapter-d1 — Cloudflare D1
@prisma/adapter-planetscale — PlanetScale

3. prisma.config.ts

Prisma 7 uses a TypeScript config file at the project root:

typescript

import 'dotenv/config';
import { defineConfig } from 'prisma/config';
 
export default defineConfig({
  schema: 'prisma/schema.prisma',
  datasource: {
    url: process.env.DATABASE_URL!,
  },
});

4. DMMF No Longer Exported

This is the most impactful change for PalJS. In Prisma 6:

typescript

import { Prisma } from '@prisma/client';
console.log(Prisma.dmmf); // Available

In Prisma 7:

typescript

import { Prisma } from './generated/prisma/client';
console.log(Prisma.dmmf); // undefined — removed

5. Import Path Changes

typescript

// Before (Prisma 6)
import { PrismaClient, Prisma } from '@prisma/client';
 
// After (Prisma 7)
import { PrismaClient, Prisma } from './generated/prisma/client';

How PalJS v9 Handles These Changes

DMMF Captured at Generate Time

The @paljs/generator runs as a native Prisma generator. It receives the full DMMF during prisma generate and writes it to disk:

code

generated/paljs/
├── dmmf/
│   ├── dmmf.json    # Raw DMMF data
│   └── index.ts     # TypeScript export

Use this for PrismaSelect field validation:

typescript

import dmmf from './generated/paljs/dmmf';
 
paljs({
  prismaSelectOptions: {
    dmmf: [dmmf],
  },
});

PrismaSelect works without DMMF — it generates select/include objects based on the GraphQL query. Without DMMF, field validation is skipped (invalid fields may pass through to Prisma and cause runtime errors).

For most use cases with generated types, this is fine since the generated code already matches the schema.

No @prisma/internals Dependency

v9 does not depend on @prisma/internals (which was unstable and removed in Prisma 7). All schema introspection happens through the official @prisma/generator-helper API at generate time.

Setup with Prisma 7

1. Install Dependencies

2. Update schema.prisma

prisma

datasource db {
  provider = "postgresql"
}
 
generator client {
  provider = "prisma-client"
  output   = "../src/generated/prisma"
}
 
generator paljs {
  provider = "paljs-generator"
  output   = "./generated/paljs"
}

3. Create prisma.config.ts

typescript

import 'dotenv/config';
import { defineConfig } from 'prisma/config';
 
export default defineConfig({
  schema: 'prisma/schema.prisma',
  datasource: {
    url: process.env.DATABASE_URL!,
  },
});

4. Create paljs.config.ts

typescript

import { defineConfig } from '@paljs/generator/config';
 
export default defineConfig({
  generateGraphQL: true,
  generateTypes: true,
});

5. Update PrismaClient Instantiation

typescript

import { PrismaPg } from '@prisma/adapter-pg';
import { PrismaClient } from './generated/prisma/client';
 
const adapter = new PrismaPg({
  connectionString: process.env.DATABASE_URL,
});
export const prisma = new PrismaClient({ adapter });

6. Generate

SQLite / LibSQL Setup

For SQLite (commonly used in development):

typescript

// prisma.config.ts
import 'dotenv/config';
import { defineConfig } from 'prisma/config';
 
export default defineConfig({
  schema: 'prisma/schema.prisma',
  datasource: {
    url: 'file:./dev.db',
  },
});

typescript

// client.ts
import { PrismaLibSQL } from '@prisma/adapter-libsql';
import { PrismaClient } from './generated/prisma/client';
 
const adapter = new PrismaLibSQL({ url: 'file:./prisma/dev.db' });
export const prisma = new PrismaClient({ adapter });

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