public function remove($id)
{
$this->setWhere(array('id' => $id));
$this->delete();
$filesModel = new Files();
$filesModel->removeFilesByProject($id);
$executorsModel = new Executors();
$executorsModel->setWhere(array('projects_id' => $id));
$executorsModel->delete();
$tasksModel = new Tasks();
$tasksModel->removeTasksByProjectId($id);
}