dartonic_postgres 1.0.0

PostgreSQL driver for Dartonic. Provides connectPostgres() to create a type-safe database connection.

dartonic_postgres

PostgreSQL driver for Dartonic. Uses the postgres package.

Installation

dependencies:
  dartonic_postgres:
    path: ../dartonic_postgres

Connection

import 'package:dartonic_postgres/dartonic_postgres.dart';

final db = await connectPostgres(
  'postgres://user:password@localhost:5432/mydb',
  schemas: [users, posts],
);

URI format: postgres://user:password@host:port/database?sslmode=require

Supported sslmode values: require, verify-full, or omit for no SSL.

Parameter	Type	Default	Description
uri	String	required	PostgreSQL connection URI
schemas	List<TableSchema>	required	Tables to register
views	List<ViewSchema>	[]	Views to create
relations	List<RelationsTable>	[]	Relation join tables
sync	bool	true	Run CREATE TABLE IF NOT EXISTS on connect

Schema Definition

Use pgTable — validates that column types are PostgreSQL-compatible.

import 'package:dartonic_core/dartonic_core.dart';

final users = pgTable('users', {
  'id': serial().primaryKey(),
  'name': varchar(length: 255).notNull(),
  'email': text().notNull().unique(),
  'role': text().$default('user'),
  'created_at': timestamp().defaultNow(),
});

final posts = pgTable('posts', {
  'id': serial().primaryKey(),
  'user_id': integer().references(() => 'users.id'),
  'title': varchar(length: 500).notNull(),
  'body': text(),
});

PostgreSQL Enums

final roleEnum = pgEnum('role', ['admin', 'user', 'guest']);

final users = pgTable('users', {
  'id': serial().primaryKey(),
  'role': roleEnum(),
});

Usage

// SELECT with typed columns
final rows = await db.select({
  'id':    users.id,
  'email': users.email,
}).from(users);

// INSERT with RETURNING
final inserted = await db
    .insert(users)
    .values({'name': 'Alice', 'email': '[e-mail]'})
    .returning();

// UPDATE
await db.update(users).set({'role': 'admin'}).where(eq(users.id, 1));

// JOIN
final rows = await db
    .select()
    .from(posts)
    .innerJoin(users, eq(posts.user_id, users.id))
    .where(eq(users.role, 'admin'));

Parameterized Queries

? placeholders are automatically converted to $1, $2, ... for PostgreSQL.

Migrations

await db.migrate(migrationsDir: 'db/migrations');

Notes

• AUTOINCREMENT is stripped; use SERIAL / BIGSERIAL instead
• Full RETURNING support
• SSL: pass ?sslmode=require in the URI