获取CakePHP中的有限字段

Question

我无法在cakephp中获取有限的字段。

以下是查询查询：

$payment = $this -> Payment -> find('first', array('recursive' => 2));

在调试时，我得到以下输出。

[Pricing] => Array
    (
        [id] => 5
        [plan_id] => 1
        [price] => 150
        [Plan] => Array
            (
                [id] => 1
                [course] => One
                [course_name] => OnePlus
                [description] => Lorem Ipsum is simply dummy text
                [discount] => 0

            )

    )

但是从Plan数组我只需要course_name。所以我试过了：

$payment = $this -> Payment -> find('first', array('recursive' => 2, 
                              'fields' => array(
                                          'Pricing.Plan.course_name'
                                          )
                               ));

但我收到错误：Column not found: 1054 Unknown column 'Pricing.Plan.course_name' in 'field list'

请帮助我从couse_name数组中获取Plan字段。

Answer 1

<强>尝试：

 $payment = $this -> Payment -> find('first', array('recursive' => 2, 
                          'fields' => array(
                                      'Plan.course_name'
                                      )
                           ));

Answer 2

试试这个

$payment = $this->Payment->find('first', array('recursive' => 2, 
                          'fields' => array(
                                      'Pricing.*','Plan.course_name'
                                      )
                           ));