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<?php
namespace RebelCode\Wpra\Core\Data\Wp;
use ArrayIterator;
use OutOfRangeException;
use RebelCode\Wpra\Core\Data\DataSetInterface;
use RebelCode\Wpra\Core\Util\IteratorDelegateTrait;
use RebelCode\Wpra\Core\Util\NormalizeWpPostCapableTrait;
use WP_Post;
/**
* A dataset implementation that can manipulate serialized array posts meta data.
*
* @since 4.13
*/
class WpPostArrayMetaDataSet implements DataSetInterface
{
/* @since 4.13 */
use NormalizeWpPostCapableTrait;
/* @since 4.13 */
use IteratorDelegateTrait;
/**
* The WordPress post.
*
* @since 4.13
*
* @var int|string|WP_Post
*/
protected $post;
/**
* The key of the meta data.
*
* @since 4.13
*
* @var string
*/
protected $metaKey;
/**
* Constructor.
*
* @since 4.13
*
* @param int|string|WP_Post $postOrId The WordPress post instance or post ID.
* @param string $metaKey The key of the meta data.
*/
public function __construct($postOrId, $metaKey)
{
$this->post = $this->normalizeWpPost($postOrId);
$this->metaKey = $metaKey;
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
public function offsetGet($key)
{
$data = $this->getMetaData();
if (isset($data[$key])) {
return $data[$key];
}
throw new OutOfRangeException(
sprintf(
__('Meta data "%s" for post %d does not have a "%s" key', 'wprss'),
$this->metaKey,
$this->post->ID, $key
)
);
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
public function offsetExists($key)
{
$data = $this->getMetaData();
return isset($data[$key]);
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
public function offsetSet($key, $value)
{
$data = $this->getMetaData();
$data[$key] = $value;
$this->setMetaData($data);
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
public function offsetUnset($key)
{
$data = $this->getMetaData();
unset($data[$key]);
$this->setMetaData($data);
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
protected function getIterator()
{
return new ArrayIterator($this->getMetaData());
}
/**
* Retrieves the entire meta data array for the post's meta key.
*
* @since 4.13
*
* @return array
*/
protected function getMetaData()
{
$data = get_post_meta($this->post->ID, $this->metaKey, true);
return empty($data) ? [] : (array) $data;
}
/**
* Sets the entire meta data array for the posts's meta key.
*
* @since 4.13
*
* @param array $data The meta data array.
*/
protected function setMetaData($data)
{
update_post_meta($this->post->ID, $this->metaKey, (array) $data);
}
}