php-basics/src/Traits/Setter.php

91 lines
2.7 KiB
PHP

<?php
/**
* PHP Basics
*
* Copyright (C) 2024 Sebastian Meyer <sebastian.meyer@opencultureconsulting.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace OCC\Basics\Traits;
use InvalidArgumentException;
use function method_exists;
use function property_exists;
use function sprintf;
use function ucfirst;
/**
* Writes data to inaccessible properties by using magic methods.
*
* To make a `protected` or `private` property writable, provide a method named
* `_magicSet{Property}()` which handles the writing. Replace `{Property}` in
* the method's name with the name of the actual property (with an uppercase
* first letter).
*
* > Example: If the property is named `$fooBar`, the "magic" method has to be
* > `_magicSetFooBar()`. This method is then called when `$fooBar` is written
* > to in a context where it normally would not be accessible.
*
* @author Sebastian Meyer <sebastian.meyer@opencultureconsulting.com>
* @package Basics\Traits
*/
trait Setter
{
/**
* Write data to an inaccessible property.
*
* @param string $property The class property to set
* @param mixed $value The new value of the property
*
* @return void
*
* @throws InvalidArgumentException if the property or setter method do not exist
*/
public function __set(string $property, mixed $value): void
{
$method = '_magicSet' . ucfirst($property);
if (property_exists(static::class, $property) && method_exists(static::class, $method)) {
$this->$method($value);
} else {
throw new InvalidArgumentException(
sprintf(
'Invalid property or missing setter method for property: %s::$%s.',
static::class,
$property
)
);
}
}
/**
* Unset an inaccessible property.
*
* @param string $property The class property to unset
*
* @return void
*/
public function __unset(string $property): void
{
try {
$this->__set($property, null);
} catch (InvalidArgumentException) {
}
}
}