EntityEditor::prepareForCopy

static function prepareForCopy(array &$entityFields, \CCrmUserType $userType)
{
	$request = Main\Context::getCurrent()->getRequest();

	$userFields = $userType->GetFields();
	foreach($userFields as $fieldName => $userField)
	{
		if(!isset($entityFields[$fieldName]))
		{
			continue;
		}

		if($userField['USER_TYPE_ID'] !== 'file')
		{
			continue;
		}

		$deletionKey = "{$fieldName}_del";
		if(isset($userField['MULTIPLE']) && $userField['MULTIPLE'] === 'Y')
		{
			$results = array();
			if(is_array($entityFields[$fieldName]))
			{
				$deletedFileIDs = isset($request[$deletionKey]) && is_array($request[$deletionKey])
					? $request[$deletionKey] : array();
				foreach($entityFields[$fieldName] as $fileInfo)
				{
					if(is_numeric($fileInfo) && in_array($fileInfo, $deletedFileIDs))
					{
						continue;
					}

					$results[] = $fileInfo;
				}
			}
			$entityFields[$fieldName] = $results;
		}
		else
		{
			$fileInfo = $entityFields[$fieldName];
			if(is_numeric($fileInfo)
				&& isset($request[$deletionKey])
				&& ($request[$deletionKey] === 'Y' || $request[$deletionKey] == $fileInfo)
			)
			{
				$entityFields[$fieldName] = false;
			}
		}
	}
}