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<?php
namespace RebelCode\Wpra\Core\Entities\Properties;
use OutOfBoundsException;
use RebelCode\Entities\Api\EntityInterface;
use RebelCode\Entities\Api\PropertyInterface;
/**
* A specialized feed item property implementation that falls back to a source property.
*
* This property replicates the get behavior of either another feed item property of a property of the feed source.
* Which one is replicated depends on the value of a boolean "control" property. When the control property has a value
* of true, the feed item property is used. If the control property has a value of false, or true but the feed item has
* no value for the property, the feed source property is used instead. All set operations will be handled using the
* feed item property.
*
* @since 4.17
*/
class WpraItemSourceProperty implements PropertyInterface
{
/**
* @since 4.17
*
* @var PropertyInterface
*/
protected $itemProp;
/**
* @since 4.17
*
* @var PropertyInterface
*/
protected $sourceProp;
/**
* @since 4.17
*
* @var string
*/
protected $controlProp;
/**
* Constructor.
*
* @since 4.17
*
* @param PropertyInterface $itemProp The feed item property.
* @param PropertyInterface $sourceProp The feed source property.
* @param string $controlProp The control property.
*/
public function __construct(
PropertyInterface $itemProp,
PropertyInterface $sourceProp,
$controlProp
) {
$this->itemProp = $itemProp;
$this->sourceProp = $sourceProp;
$this->controlProp = $controlProp;
}
/**
* @inheritdoc
*
* @since 4.17
*/
public function getValue(EntityInterface $item)
{
$feed = $item->get('source');
if ($feed) {
try {
$control = $feed->get($this->controlProp);
$value = $control ? $this->itemProp->getValue($item) : null;
if (!empty($value)) {
return $value;
}
} catch (OutOfBoundsException $exception) {
// Do nothing
}
}
// Default to value from feed source
return $this->sourceProp->getValue($feed);
}
/**
* @inheritdoc
*
* @since 4.17
*/
public function setValue(EntityInterface $entity, $value)
{
return $this->itemProp->setValue($entity, $value);
}
}