Laravel State Machine Laravel Package

Added

• Transition effects via Transition::using($closure) that run inside the same database transaction as the state change and history — if the effect throws, the whole transition rolls back (and in-memory state is reverted).
• toMermaid() on the definition and handler, plus a state-machine:diagram artisan command, to render the machine as a Mermaid stateDiagram-v2.

Changed

• apply() now wraps the state change, effect and history in one transaction.

First stable release.

Declarative state machines for Eloquent models:

• StateMachine definitions (states, transitions, initial state), validated on use.
• Transition builder with multiple source states and optional guards.
• HasStateMachines trait: seeds the initial state and exposes can / allowed / apply / history.
• StateTransitioning and StateTransitioned events.
• Optional transition history with a publishable migration.

Requires PHP 8.2+ and Laravel 12.