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/*
* This file is part of the ICanBoogie package.
*
* (c) Olivier Laviale <olivier.laviale@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace ICanBoogie;
/**
* Iterates over an error collection and return rendered errors.
*/
class ErrorCollectionIterator implements \IteratorAggregate
{
/**
* @var ErrorCollection
*/
private $collection;
/**
* @var callable|RenderError
*/
private $render_error;
/**
* @param ErrorCollection $collection
* @param RenderError|callable $render_error
*/
public function __construct(ErrorCollection $collection, callable $render_error = null)
{
$this->collection = $collection;
$this->render_error = $render_error ?: function (Error $error) { return (string) $error; };
}
/**
* @inheritdoc
*/
public function getIterator()
{
/* @var $error Error */
foreach ($this->collection as $attribute => $error)
{
yield $attribute => $this->render_error($error, $attribute);
}
}
/**
* Renders an error into a string.
*
* @param Error $error
* @param string $attribute
*
* @return string
*/
protected function render_error(Error $error, $attribute)
{
$render_error = $this->render_error;
return $render_error($error, $attribute, $this->collection);
}
}