public function add()
    {
        $this->request->allowMethod(['post']);
        $employee = $this->Employees->newEntity($this->request->getData());
        if ($this->Employees->save($employee)) {
            $message = 'Saved';
        } else {
            $message = 'Error';
        }
        $this->set([
            'message' => $message,
            'employee' => $employee,
        ]);
        $this->viewBuilder()->setOption('serialize', ['employee', 'message']);
    }