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mmalessa/saga
=============

Saga pattern implementation

03PHPCI failing

Since Oct 21Pushed 6y ago1 watchersCompare

[ Source](https://github.com/mmalessa/saga)[ Packagist](https://packagist.org/packages/mmalessa/saga)[ RSS](/packages/mmalessa-saga/feed)WikiDiscussions master Synced 3d ago

READMEChangelogDependenciesVersions (1)Used By (0)

Saga
====

[](#saga)

Saga pattern simple implementation in Symfony 4.3+
Development vertion. Use it at your own risk.

Install
=======

[](#install)

```
composer req mmalessa/saga
```

Symfony services.yaml - add something like this:

```
services:
    app.saga.state_repository:
        class: 'Mmalessa\Saga\InMemoryStateRepository'

    App\Saga\MySaga:
        arguments:
            $stateRepository: '@app.saga.state_repository'
            $type: 'mysaga'
        tags: ['kernel.event_subscriber']
```

Usage
=====

[](#usage)

```
use Symfony\Component\EventDispatcher\EventDispatcher;

class X {
    [...]
    method() {
        [...]
        $this->eventDispatcher->dispatch(new SomethingHappened('a7933354-d489-4522-bd59-111a985cbf7c', new \DateTime(), 'My description'));
        $this->eventDispatcher->dispatch(new SomethingElseHappened('a7933354-d489-4522-bd59-111a985cbf7c', new \DateTime(), 'My second description'));
        [...]
    }
}
```

```
use App\Command\DoSomething;
use App\Event\SomethingElseHappened;
use App\Event\SomethingHappened;
use Broadway\CommandHandling\CommandBus;
use Mmalessa\Saga\Saga;
use Mmalessa\Saga\State;
use Mmalessa\Saga\StateRepository;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class MySaga extends Saga implements EventSubscriberInterface
{
    const EVENTS = [
        SomethingHappened::class => ['somethingHappened', 1],
        SomethingElseHappened::class => ['somethingElseHappened', 1]
    ];

    private $commandBus;

    public function __construct(StateRepository $stateRepository, string $type, CommandBus $commandBus)
    {
        $this->commandBus = $commandBus;
        parent::__construct($stateRepository, $type);
    }

    public function somethingHappened(SomethingHappened $event, State $state): State
    {
        $state->set('id', $event->getId());
        $state->set('something', 'OK');
        $this->tryToDoSomething($state);
        return $state;
    }
    public function somethingElseHappened(SomethingElseHappened $event, State $state): State
    {
        $state->set('id', $event->getId());
        $state->set('somethingElse', 'OK');
        $this->tryToDoSomething($state);
        return $state;
    }

    public function tryToDoSomething(State &$state)
    {
        print_r($state); echo PHP_EOL;
        $condition1 = $state->get('something') === 'OK';
        $condition2 = $state->get('somethingElse') === 'OK';
        if ($condition1 && $condition2) {
            $state->setDone();
            $this->commandBus->dispatch(new DoSomething((string)$state->get('id')));
        }
    }
}
```

```
use Mmalessa\Saga\Identifiable;

class SomethingHappened implements Identifiable
{
    private $id;
    private $dateTime;
    private $description;

    public function __construct(string $Id, \DateTime $dateTime, string $description)
    {
        $this->id = $Id;
        $this->dateTime = $dateTime;
        $this->description = $description;
    }

    public function getId(): string
    {
        return $this->id;
    }

    public function getDateTime(): \DateTime
    {
        return $this->dateTime;
    }

    public function getDescription(): string
    {
        return $this->description;
    }
}
```

###  Health Score

17

—

LowBetter than 6% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity3

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity35

Early-stage or recently created project

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

### Community

Maintainers

![](https://www.gravatar.com/avatar/002ff67dd90c9245daea55d065039f10790fd1c46d1b016ad120b761da294b8f?d=identicon)[mmalessa](/maintainers/mmalessa)

---

Top Contributors

[![mmalessa](https://avatars.githubusercontent.com/u/3789506?v=4)](https://github.com/mmalessa "mmalessa (3 commits)")

### Embed Badge

![Health badge](/badges/mmalessa-saga/health.svg)

```
[![Health](https://phpackages.com/badges/mmalessa-saga/health.svg)](https://phpackages.com/packages/mmalessa-saga)
```

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