README

A sort-of-kind-of ActiveModel type'ish base for Models that rely on an array of attributes. Includes a type-casting sub-system for casting attributes to values. Extracted from read-models.

The focus is for creating read-only Model representations for use in presentation layers. This library is used by somnambulist/read-models and api-client.

Requirements

• PHP 8.1+
• pragmarx/ia-str

Installation

Install using composer, or checkout / pull the files from github.com.

• composer require somnambulist/attribute-model

Usage

Extend to a model e.g. User; or implement into a base model and add extra functionality. Use attribute casting if needed before passing attributes into the model.

<?php
use Somnambulist\Components\AttributeModel\AbstractModel;
use Somnambulist\Components\AttributeModel\AttributeCaster;
use Somnambulist\Components\AttributeModel\TypeCasters\AreaCaster;
use Somnambulist\Components\AttributeModel\TypeCasters\MoneyCaster;

class User extends AbstractModel
{

}

$caster = new AttributeCaster([
    new AreaCaster(),
    new MoneyCaster(),
]);
$attrs = [];
$user = new User($caster->cast($attrs, ['area' => 'area', 'money' => 'money',]));

Built-in Casters

The following casters are built-in and are largely configurable by type or attribute name(s):

Many of the casters accept alternative attribute names for matching and type overrides. Suitable defaults are provided where appropriate (e.g.: json, json_array, json_collection).

More casters can be added by implementing the interface and attaching to the AttributeCaster.

An existing caster can be re-used on another type by calling $caster->extend(<type>, [new, types, here]). The configuration of the caster cannot be changed; it adds extra type keys that the caster will respond to.

Tests

PHPUnit 9+ is used for testing. Run tests via vendor/bin/phpunit.