返回的锂框架数据类型始终为字符串

Question

我已经将REST项目用于REST API。当我从数据库中获取结果时，值的数据类型是错误的。我也定义了这个方案，但不确定什么是错的。以下是我的代码：

控制器：

 public function view() {

    $success = false;

    $model = $this->model;
    $data = $model::find('first', array(
            'conditions'=> array('id' => $this->request->id)
        )
    );



    if($data){
        $success = true;
        $data = $data->to('array');
    }

    return compact('data','success');

}

型号：

class Franchisees extends \lithium\data\Model {

    protected $_schema = array(
        'id' => 'id',
        'name' => 'string',
        'email' => 'string',
        'password' => 'string',
        'location' => 'string',
        'days' => 'integer',
        'status' => 'boolean'
    );

    public $validates = array(
        'name' => array(
            array('notEmpty', 'message'=>'You must include a name.')
        ),
        'email' => array(
            array('notEmpty', 'message'=>'You must include a email.'),
            array('email', 'message'=>'email is not valid.'),
            array('isUniqueEmail', 'message'=>'email is already used.')
        ),
        'password' => array(
            array('notEmpty', 'message'=>'You must include a password.')
        ),
        'location' => array(
            array('notEmpty', 'message'=>'You must include a location.')
        )
    );

}

输出：

array (size=7)
  'id' => string '20' (length=2)
  'name' => string 'test' (length=4)
  'email' => string 'test4@gmail.com' (length=15)
  'password' => string '123' (length=3)
  'location' => string 'location1' (length=9)
  'days' => string '4' (length=1)
  'status' => string '1' (length=1)

上面的输出是所有字符串值，其中status，days，id不应该是字符串。