Multi-file Schema

🔋 ZModel vs Prisma Schema

Prisma uses an implicit approach that simply merges all schema files in a folder. ZModel uses explicit import syntax for better clarity and flexibility.

When your schema grows large, you can break them down to smaller files and stitch them together using the import statement.

zenstack/user.zmodel

import './post'

model User {
    id    Int   @id
    posts Post[]
}

zenstack/post.zmodel

import './user'

model Post {
    id       Int    @id
    content  String
    author   User   @relation(fields: [authorId], references: [id])
    authorId Int
}

zenstack/schema.zmodel

import './user'
import './post'

After type-checking, these files are merged into a single schema AST before passed to the downstream tools.