tmilos/value

Abstract value and enum objects

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github.com/tmilos/value

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2.0.1 2016-12-26 13:52 UTC

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Last update: 2024-12-17 21:47:25 UTC


README

Abstract value and enum objects

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Value objects

class IntValue extends AbstractValue
{
    public static function isValid($value)
    {
        return is_int($value);
    }
}

$x = new IntValue(10); // ok
print $x->getValue(); // 10
$y = new IntValue(10);
var_dump($x->equal($y)); // true

$z = new IntValue('20'); // throws \UnexpectedValueException

Enum value object

All class defined constants are valid values, and magic method with same constant name can be called to instantiate Enum with that value.

class Gender extends AbstractEnum
{
    const MALE = 'male';
    const FEMALE = 'female';

    private static $titles = [
        self::MALE => 'gender.male',
        self::FEMALE => 'gender.female',
    ];

    public function getTitle()
    {
        return self::$titles[$this->getValue()];
    }
}

var_dump(Gender::all());    // ['male' => Gender() => 'female' => Gender() ]
var_dump(Gender::values()); // [ 0 => 'male', 1 => 'female' ]
$m = Gender::MALE();
print $m->getValue(); // male
print $m->getTitle(); // gender.male
var_dump(Gender::isValid('male')); // true
var_dump(Gender::isValid('something')); // false