93 lines
1.9 KiB
Markdown
93 lines
1.9 KiB
Markdown
# PostgreSQL Setup
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Configure Prisma with PostgreSQL.
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## Prerequisites
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- PostgreSQL database (local or cloud)
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- Connection string
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## 1. Schema Configuration
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In `prisma/schema.prisma`:
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```prisma
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datasource db {
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provider = "postgresql"
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}
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generator client {
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provider = "prisma-client"
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output = "../generated"
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}
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```
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## 2. Config Configuration (v7)
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In `prisma.config.ts`:
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```typescript
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import { defineConfig, env } from 'prisma/config'
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export default defineConfig({
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schema: 'prisma/schema.prisma',
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datasource: {
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url: env('DATABASE_URL'),
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},
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})
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```
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## 3. Environment Variable
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In `.env`:
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```env
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DATABASE_URL="postgresql://user:password@localhost:5432/mydb?schema=public"
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```
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### Connection String Format
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```
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postgresql://USER:PASSWORD@HOST:PORT/DATABASE?schema=SCHEMA
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```
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- **USER**: Database user
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- **PASSWORD**: Password (URL encoded if special chars)
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- **HOST**: Hostname (localhost, IP, or domain)
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- **PORT**: Port (default 5432)
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- **DATABASE**: Database name
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- **SCHEMA**: Schema name (default `public`)
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## Driver Adapter (Prisma ORM 7 required)
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Prisma ORM 7 uses the query compiler by default, so you must use a driver adapter.
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1. Install adapter and driver:
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```bash
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npm install @prisma/adapter-pg pg
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```
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2. Instantiate Prisma Client with the adapter:
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```typescript
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import 'dotenv/config'
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import { PrismaClient } from '../generated/client'
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import { PrismaPg } from '@prisma/adapter-pg'
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const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL })
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const prisma = new PrismaClient({ adapter })
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```
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## Common Issues
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### "Can't reach database server"
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- Check host and port
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- Check firewall settings
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- Ensure database is running
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### "Authentication failed"
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- Check user/password
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- Special characters in password must be URL-encoded
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### "Schema does not exist"
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- Ensure `?schema=public` (or your schema) is in the URL
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