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<?php
namespace Bitrix\Catalog\Model;
use Bitrix\Main,
Bitrix\Main\Localization\Loc,
Bitrix\Catalog;
Loc::loadMessages(__FILE__);
class Event extends Main\Event
{
/** @var Entity */
protected $entity = null;
protected static $catalogHandlerExist = [];
private static $keys = ['fields', 'external_fields', 'actions'];
public function __construct(Entity $entity, string $type, array $parameters = [])
{
$this->entity = $entity;
parent::__construct('catalog', self::makeEventName(get_class($this->entity), $type), $parameters);
}
/**
* Checks the result of the event for errors, fills the Result object.
* Returns true on errors, false on no errors.
*
* @param Main\Result $result
* @return bool
*/
public function getErrors(Main\Result $result): bool
{
$hasErrors = false;
/** @var $eventResult Main\Entity\EventResult */
foreach($this->getResults() as $eventResult)
{
if ($eventResult->getType() === Main\Entity\EventResult::ERROR)
{
$hasErrors = true;
$result->addErrors($eventResult->getErrors());
}
}
return $hasErrors;
}
/**
* Merge data from handlers.
*
* @param array $data
* @return void
*/
public function mergeData(array &$data): void
{
/** @var $eventResult Catalog\Model\EventResult */
foreach($this->getResults() as $eventResult)
{
$removed = $eventResult->getUnset();
foreach (self::$keys as $index)
{
if (empty($removed[$index]))
continue;
foreach ($removed[$index] as $key)
unset($data[$index][$key]);
unset($key);
}
unset($removed);
$modified = $eventResult->getModified();
foreach (self::$keys as $index)
{
if (empty($modified[$index]))
continue;
$data[$index] = array_merge($data[$index], $modified[$index]);
}
unset($modified);
}
}
/**
* Search handlers for event.
*
* @param Entity $entity
* @param string $eventName
* @return bool
*/
public static function existEventHandlers(Entity $entity, string $eventName): bool
{
return static::existEventHandlersById(self::makeEventName(get_class($entity), $eventName));
}
/**
* @param string $class
* @param string $eventName
* @return string
*/
public static function makeEventName(string $class, string $eventName): string
{
return $class.'::'.$eventName;
}
/**
* Search handlers for event by id.
*
* @param string $id
* @return bool
*/
public static function existEventHandlersById(string $id): bool
{
if (!isset(self::$catalogHandlerExist[$id]))
{
$eventManager = Main\EventManager::getInstance();
$eventsList = $eventManager->findEventHandlers(
'catalog', $id
);
self::$catalogHandlerExist[$id] = !empty($eventsList);
unset($eventsList, $eventManager);
}
return self::$catalogHandlerExist[$id];
}
}