EventHandler::clearNotProjects

private function clearNotProjects(array $groups): array
{
	[$added, $changed, $removed, $userChanged] = $groups;

	$filter = function ($groupId) {
		return ($this->newFields[$groupId]['PROJECT'] === 'Y');
	};
	$changedFilter = function ($groupId) {
		return ($this->newFields[$groupId]['PROJECT'] === 'Y' || $this->oldFields[$groupId]['PROJECT'] === 'Y');
	};
	$removedFilter = function ($groupId) {
		return ($this->oldFields[$groupId]['PROJECT'] === 'Y');
	};

	return [
		array_filter($added, $filter),
		array_filter($changed, $changedFilter),
		array_filter($removed, $removedFilter),
		array_filter($userChanged, $filter),
	];
}