skills

.agents/skills/prisma-database-setup/references/sqlite.md

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+# SQLite Setup
+
+Configure Prisma with SQLite.
+
+## Prerequisites
+
+- None (file-based)
+
+## 1. Schema Configuration
+
+In `prisma/schema.prisma`:
+
+```prisma
+datasource db {
+  provider = "sqlite"
+}
+
+generator client {
+  provider = "prisma-client"
+  output   = "../generated"
+}
+```
+
+## 2. Config Configuration (v7)
+
+In `prisma.config.ts`:
+
+```typescript
+import { defineConfig, env } from 'prisma/config'
+
+export default defineConfig({
+  schema: 'prisma/schema.prisma',
+  datasource: {
+    url: env('DATABASE_URL'),
+  },
+})
+```
+
+## 3. Environment Variable
+
+In `.env`:
+
+```env
+DATABASE_URL="file:./dev.db"
+```
+
+### Connection String Format
+
+```
+file:PATH
+```
+
+- **PATH**: Relative path to the database file (from `prisma/schema.prisma` location usually, but in v7 check `prisma.config.ts` context). Usually relative to the schema file.
+
+## Driver Adapter (Prisma ORM 7 required)
+
+Prisma ORM 7 uses the query compiler by default, so you must use a driver adapter.
+
+1. Install adapter and driver:
+   ```bash
+   npm install @prisma/adapter-better-sqlite3 better-sqlite3
+   ```
+
+2. Instantiate Prisma Client with the adapter:
+   ```typescript
+   import { PrismaClient } from '../generated/client'
+   import { PrismaBetterSqlite3 } from '@prisma/adapter-better-sqlite3'
+
+   const adapter = new PrismaBetterSqlite3({
+     url: process.env.DATABASE_URL ?? 'file:./dev.db',
+   })
+
+   const prisma = new PrismaClient({ adapter })
+   ```
+
+## Using Driver Adapter (LibSQL / Turso)
+
+For edge compatibility or Turso:
+
+1. Install:
+   ```bash
+   npm install @prisma/adapter-libsql @libsql/client
+   ```
+
+2. Instantiate:
+   ```typescript
+   import { PrismaClient } from '../generated/client'
+   import { PrismaLibSql } from '@prisma/adapter-libsql'
+
+   const adapter = new PrismaLibSql({
+     url: process.env.TURSO_DATABASE_URL,
+     authToken: process.env.TURSO_AUTH_TOKEN,
+   })
+   const prisma = new PrismaClient({ adapter })
+   ```
+
+## Limitations
+
+- **No Enums**: SQLite doesn't support enums (Prisma polyfills them or treats as String).
+- **No Scalar Lists**: `String[]` is not supported directly.
+- **Concurrency**: Write operations lock the file.
+
+## Common Issues
+
+### "Database file not found"
+Ensure the path in `DATABASE_URL` is correct relative to where Prisma is running or the schema file. `file:./dev.db` creates it next to schema.