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Example code of szykra/state-machine

Informations about the package state-machine

Finite State Machine

Finite State Machine implementation in PHP

Installation

Install via composer

Add dependency to your composer.json file and run composer update.

or just run

Usage

Prepare your entity to be stateful

Your entity should implements interface StatefulInterface. It requires two new methods

Of course you should add new property named e.g. state.

Configure a StateMachine by adding States and Transitions

To control your entity by StateMachine you have to define:

State

State object simply represents a state. It has name and list of available transitions.

Transition

Transition is like single action which someone performs on an object. It means transition from one state to another state.

Each state has own transitions so available transitions depend on the current state of object.

StateMachine

StateMachine is a controller used to change state of stateful object. First you should create a StateMachine object and set up it by adding a valid States.

Initialize a State Machine

When your StateMachine is ready you could initialize it by Stateful Object.

Now you could change state of $document by $stateMachine. To check if transition can be performed use the can($transition) method, e.g. if current state of $document is draft the results will be as follows

To change state of object you should use run($transition) method. If transition not exists TransitionNotFoundException will be thrown.

If you want to see a complete example please see tests/ directory.

To do

License

The MIT License. Copyright © 2015 by Szymon Krajewski

All versions of state-machine with dependencies

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