mikro-orm-v6-to-v7

What problem does it solve?

This Skill helps you upgrade MikroORM from v6 to v7 by resolving the most common breaking changes that cause runtime and TypeScript errors, especially around packages, APIs, decorators, entities, and SQLite/Edge/Bun compatibility.

Core Features & Use Cases

• Package and import path migration: Replace @mikro-orm/knex with @mikro-orm/sql, and switch decorator imports to @mikro-orm/decorators/legacy (or ES spec / defineEntity).
• API transformation guidance: Update removed/renamed methods like persistAndFlush, removeAndFlush, nativeInsert, schema accessors, and QueryBuilder execution behavior.
• Entity definition strategy selection: Choose between defineEntity (recommended), legacy decorators (for minimal changes), or ES spec decorators, with guidance for common pitfalls.
• SQLite runtime adaptation: Configure MikroORM for Edge/Bun/node:sqlite using SqliteDriver and Kysely dialects, and address blob behavior differences and known issues.
• Default behavior checks and debugging: Diagnose issues like timezone handling (forceUtcTimezone), transaction behavior, schema diffs, and decorator compilation errors.

Quick Start

Upgrade your project from MikroORM v6 to v7 and fix errors by following the migration steps for dependencies, imports, API changes, entity definitions, and SQLite/Edge runtime requirements.