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bus-factor/ddd
==============

Domain Driven Design related Classes and Utilities

v6.0.0(3y ago)19.1k1MITPHPPHP ^8.1

Since Sep 14Pushed 3y ago1 watchersCompare

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

READMEChangelog (2)Dependencies (2)Versions (20)Used By (1)

DDD
===

[](#ddd)

Domain-Driven Design related Classes and Utilities.

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Model
-----

[](#model)

### Value Objects

[](#value-objects)

The following value object classes are available:

- `EmailAddress`
- `Enum`
- `IpAddress`
- `IpV4Address`
- `IpV6Address`
- `MacAddress`
- `SingleValueObject` (Single-value object base class)
- `Url`

Sample usage
------------

[](#sample-usage)

```
/**
 * @method static Currency EUR()
 * @method static Currency USD()
 */
class Currency extends \BusFactor\Ddd\ValueObject\Enum {
    public const EUR = 'EUR';
    public const USD = 'USD';
}

class Decimal implements \BusFactor\Ddd\ComparableInterface {
    use \BusFactor\Ddd\ComparableTrait;

    // ...
    public function compareTo(\BusFactor\Ddd\ComparableInterface $subject) : int {
    }
    // ...
}

class Money implements \BusFactor\Ddd\ComparableInterface {
    use \BusFactor\Ddd\ComparableTrait;

    /** @var Decimal $amount*/
    private $amount;
    /** @var Currency $currency */
    private $currency;

    /**
     * @param Decimal $amount
     * @param Currency $currency
     */
    public function __construct(Decimal $amount, Currency $currency) {
        $this->amount = $amount;
        $this->currency = $currency;
    }

    /**
     * @param \BusFactor\Ddd\ComparableInterface $subject
     * @return int
     */
    public function compareTo(\BusFactor\Ddd\ComparableInterface $subject) : int {
        $comparable = $subject instanceof static::class
            && $this->currency === $subject->currency;

        if (!$comparable) {
            throw new LogicException('Incompatible currencies');
        }

        return $this->amount->compareTo($subject->amount);
    }
}

$money = new Money(new Decimal(/* ... */), Currency::EUR());
$otherMoney = new Money(new Decimal(/* ... */), Currency::EUR());
```

###  Health Score

35

—

LowBetter than 79% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity20

Limited adoption so far

Community9

Small or concentrated contributor base

Maturity75

Established project with proven stability

 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.

###  Release Activity

Cadence

Every ~78 days

Recently: every ~138 days

Total

18

Last Release

1104d ago

Major Versions

v1.0.0 → v2.0.02019-11-30

v2.0.0 → v3.0.02020-11-22

v3.0.1 → v4.0.02020-12-27

v4.0.0 → v5.0.02020-12-27

v5.5.0 → v6.0.02023-05-06

PHP version history (4 changes)v3.0.0PHP ^7.3

v5.2.0PHP >=7.3

v5.4.0PHP >=7.4

v6.0.0PHP ^8.1

### Community

Maintainers

![](https://www.gravatar.com/avatar/44ccde1fcae320f49bcd75fd528a532212c7da3913d74926b4f6e030d4e4fe1f?d=identicon)[bus-factor](/maintainers/bus-factor)

---

Top Contributors

[![bus-factor](https://avatars.githubusercontent.com/u/16355907?v=4)](https://github.com/bus-factor "bus-factor (44 commits)")

---

Tags

Domain Driven Designddd

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/bus-factor-ddd/health.svg)

```
[![Health](https://phpackages.com/badges/bus-factor-ddd/health.svg)](https://phpackages.com/packages/bus-factor-ddd)
```

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