69 lines
1.5 KiB
PHP
69 lines
1.5 KiB
PHP
<?php declare(strict_types=1);
|
|
/**
|
|
* Ion
|
|
*
|
|
* Building blocks for web development
|
|
*
|
|
* PHP version 7.1
|
|
*
|
|
* @package Ion
|
|
* @author Timothy J. Warren <tim@timshomepage.net>
|
|
* @copyright 2015 - 2018 Timothy J. Warren
|
|
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
|
* @version 2.3.0
|
|
* @link https://git.timshomepage.net/timw4mail/ion
|
|
*/
|
|
|
|
namespace Aviat\Ion\Transformer;
|
|
|
|
use Aviat\Ion\StringWrapper;
|
|
|
|
use BadMethodCallException;
|
|
|
|
/**
|
|
* Base class for data transformation
|
|
*/
|
|
abstract class AbstractTransformer implements TransformerInterface {
|
|
|
|
use StringWrapper;
|
|
|
|
/**
|
|
* Mutate the data structure
|
|
*
|
|
* @param array|object $item
|
|
* @return mixed
|
|
*/
|
|
abstract public function transform($item);
|
|
|
|
/**
|
|
* Transform a set of structures
|
|
*
|
|
* @param iterable $collection
|
|
* @return array
|
|
*/
|
|
public function transformCollection(iterable $collection): array
|
|
{
|
|
$list = (array)$collection;
|
|
return array_map([$this, 'transform'], $list);
|
|
}
|
|
|
|
/**
|
|
* Untransform a set of structures
|
|
*
|
|
* Requires an 'untransform' method in the extending class
|
|
*
|
|
* @param iterable $collection
|
|
* @return array
|
|
*/
|
|
public function untransformCollection(iterable $collection): array
|
|
{
|
|
if ( ! method_exists($this, 'untransform'))
|
|
{
|
|
throw new BadMethodCallException('untransform() method does not exist.');
|
|
}
|
|
|
|
$list = (array)$collection;
|
|
return array_map([$this, 'untransform'], $list);
|
|
}
|
|
}
|
|
// End of AbstractTransformer.php
|