PHP code example of jausions / php-typed-doctrine-collections

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

jausions / php-typed-doctrine-collections example snippets

use Abacus11\Doctrine\Collections\CollectionOf;

$int_array = new CollectionOf([1, 2]);      // Okay
$int_array = new CollectionOf([1, '2']);    // Not okay - throws \TypeError
$int_array = new CollectionOf([null, 1]);   // Not okay - throws \InvalidArgumentException

use Abacus11\Doctrine\Collections\CollectionOf;

$sample = 1;
$int_array = (new CollectionOf())->setElementTypeLike($sample);

$int_array[] = 2;              // Okay
$int_array[] = true;           // Not okay - throws \TypeError exception

class SomeClass {}

$sample = new SomeClass();
$some = (new CollectionOf())->setElementTypeLike($sample);

$some[] = new SomeClass();     // Okay
$some[] = new stdClass();      // Not okay - throws \TypeError exception

use Abacus11\Doctrine\Collections\CollectionOf;

// Use the setElementType() method

$positive_int = (new CollectionOf())->setElementType(function ($value) {
    if (!is_integer($value)) {
        return false;
    }
    return ($value >= 0);
});

$positive_int['apples'] = 0;      // Okay
$positive_int['oranges'] = 10;    // Okay
$positive_int['bananas'] = -5;    // Not okay - throws \TypeError exception

// Or directly in the constructor

$negative_int = new CollectionOf(
    function ($value) {
        if (!is_integer($value)) {
            return false;
        }
        return ($value <= 0);
    }
);

$negative_int[] = -50;            // Okay
$negative_int[] = 5;              // Not okay - throws \TypeError exception

use Abacus11\Doctrine\Collections\CollectionOf;

class A {}

class B {}

class AA extends A {}

// Use the setElementType() method

$some_a = (new CollectionOf())->setElementType(A::class);

$some_a[] = new A();    // Okay
$some_a[] = new AA();   // Okay
$some_a[] = new B();    // Not okay - throws \TypeError exception

// Or directly in the constructor

$some_b = new CollectionOf(B::class);

$some_b[] = new B();    // Okay
$some_b[] = new A();    // Not okay - throws \TypeError exception

use Abacus11\Doctrine\Collections\CollectionOf;

// Use the setElementType() method

$int_array = (new CollectionOf())->setElementType('integer');

$int_array[] = 1;      // Okay
$int_array[] = '1';    // Not okay - throws \TypeError exception

// Or directly in the constructor

$int_array = new CollectionOf('integer');

$int_array[] = 20;     // Okay
$int_array[] = true;   // Not okay - throws \TypeError exception

$integers = new \Abacus11\Doctrine\Collections\Integers([1, 2, 3, 0, -1]);

use Abacus11\Doctrine\Collections\CollectionOf;

class Vehicle
{
}

class Car extends Vehicle
{
    public $make;
    public $model;
    public $color;
    public $license_plate_number;
}

class Submarine extends Vehicle
{
    public $name;
}

class Cars extends CollectionOf
{
    /**
     * @param Car[] $cars
     */
    public function __construct(array $cars = []) {
        parent::__construct(Car::class, $cars);
        // - or -
        //$this->setElementType(Car::class);
        //parent::__construct($cars);
    }
}

class Parking
{
    /**
     * @var Cars
     */
    protected $lot;

    public function __construct()
    {
        $this->lot = new Cars([]);
    }

    public function enter(Vehicle $car)
    {
        $this->lot[] = $car;
    }

    /**
     * @return Car[] The collection of cars
     */
    public function getCars(): Cars
    {
        return $this->lot;
    }

    //...
}

$my_car = new Car();
$my_car->model = 'T';
$my_car->make = 'Ford';
$my_car->color = 'Black';
$my_car->license_plate_number = 'MI-01234';

$my_sub = new Submarine();
$my_sub->name = 'Nautilus';

$parking = new Parking();
$parking->enter($my_car);   // Okay
$parking->enter($my_sub);   // Not okay - throws \TypeError exception