Files

T

warkanum 3b88c386a1 fix(codegen): sort map iteration to make generated output deterministic

Table.Columns/Constraints/Indexes/Relationships are Go maps, and every
writer, reader, diff, inspector, and merge code path that iterated them
directly was subject to Go's randomized map order, so identical input
could produce different output (or a different in-report violation/diff
order) on every run. Most visibly this showed up as bun/gorm `unique:`
struct tags changing order across consecutive `make models` runs with no
source change.

Fixed by sorting map iteration (by Sequence then Name, or alphabetically
for string-keyed maps) everywhere the order affects generated output or
first-match tie-break logic, across the bun, gorm, sqlite, dbml, drawdb,
pgsql, prisma, graphql, typeorm, drizzle, and dctx writers; the dctx,
prisma, and typeorm readers; the shared models.GetPrimaryKey/
GetForeignKeys helpers; pkg/diff, pkg/inspector, and pkg/merge; and the
TUI column/relationship pickers in pkg/ui.

2026-08-10 20:54:40 +02:00

reader_test.go

Add Prisma 7 flag support

2026-04-30 20:22:57 +02:00

reader.go

fix(codegen): sort map iteration to make generated output deterministic

2026-08-10 20:54:40 +02:00

README.md

Updated Readme files

2025-12-28 10:34:20 +02:00

README.md

Prisma Reader

Reads Prisma schema files and extracts database schema information.

Overview

The Prisma Reader parses .prisma schema files that define database models using Prisma's schema language and converts them into RelSpec's internal database model representation.

Features

Parses Prisma schema syntax
Extracts models, fields, and relationships
Supports Prisma attributes and directives
Handles enums and composite types

Usage

Basic Example

package main

import (
    "fmt"
    "git.warky.dev/wdevs/relspecgo/pkg/readers"
    "git.warky.dev/wdevs/relspecgo/pkg/readers/prisma"
)

func main() {
    options := &readers.ReaderOptions{
        FilePath: "/path/to/schema.prisma",
    }

    reader := prisma.NewReader(options)
    db, err := reader.ReadDatabase()
    if err != nil {
        panic(err)
    }

    fmt.Printf("Found %d schemas\n", len(db.Schemas))
}

CLI Example

# Read Prisma schema and convert to JSON
relspec --input prisma --in-file schema.prisma --output json --out-file schema.json

# Convert Prisma to GORM models
relspec --input prisma --in-file schema.prisma --output gorm --out-file models.go

Example Prisma Schema

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

generator client {
  provider = "prisma-client-js"
}

model User {
  id        Int      @id @default(autoincrement())
  username  String   @unique @db.VarChar(50)
  email     String   @db.VarChar(100)
  createdAt DateTime @default(now()) @map("created_at")

  posts Post[]

  @@map("users")
}

model Post {
  id      Int    @id @default(autoincrement())
  userId  Int    @map("user_id")
  title   String @db.VarChar(200)
  content String @db.Text

  user User @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@map("posts")
}

Supported Prisma Attributes

@id - Primary key
@unique - Unique constraint
@default - Default value
@map - Column name mapping
@@map - Table name mapping
@relation - Relationship definition
@db.* - Database-specific type annotations

Notes

Extracts datasource provider information
Supports @@map for custom table names
Handles Prisma-specific types and converts them to standard SQL types