README

A small set of interfaces and an abstract implementation, extending the Collection class from illuminate/collections, used to create collections with predefined content types.

Getting started

Prerequisites

• PHP >=8.0.2

Having the phpstan/phpstan composer package installed globally is not required, but useful.

Installation

composer require Jascha030/type-collections

Usage

You can create a "typed" collection class by extending Jascha030\TypeCollection\TypeCollectionAbstract, this will require you to implement the getType method.

<?php declare(strict_types=1);

namespace Jascha030\TypeCollections;

/**
 * @template T
 *
 * @extends \Jascha030\TypeCollections\ValidatedCollectionInterface<T>
 */
interface TypeCollectionInterface extends ValidatedCollectionInterface
{
    /**
     * @return class-string<T>|string
     */
    public function getType(): string;
}

This package also contains the simplest implementation for these interfaces which takes the accepted type as first constructor parameter.

<?php declare(strict_types=1);

use Jascha030\TypeCollections\TypeCollection;
use Jascha030\TypeCollections\Tests\Fixtures\ExampleModel;

$items = [
    new ExampleModel(1),
    new ExampleModel(2),
];

$collection = new TypeCollection(ExampleModel::class, $items);

PHPStan annotations

This package uses phpstan to annotate your class for better code completion. You can do this by annotating your class using the @implements PHPDoc tag like: @implements TypeCollectionAbstract<YOUR_CLASS_NAME>.

You can see how this is done for the ExampleCollection class used for unit testing this package below.

<?php declare(strict_types=1);

namespace Jascha030\TypeCollections\Tests\Fixtures;

use Jascha030\TypeCollections\TypeCollectionAbstract;

/**
 * @implements TypeCollectionAbstract<ExampleModel>
 */
final class ExampleCollection extends TypeCollectionAbstract
{
    // ...
}