php - Cakephp不明索引问题

Question

嗨，我一直试图让它工作好久了，

我有一个交易 Controller

<?php
class DealsController extends AppController {

    var $name = 'Deals';
    var $helpers = array('HTML', 'Javascript', 'Form', 'Time', 'Ajax');
    var $components = array('RequestHandler', 'Session', 'Cookie');
    var $uses = array('Deal', 'City', 'Partner');

    function beforeFilter(){
        parent::beforeFilter();

        if(strpos($this->here, 'admin')){
            $this->layout = 'admin';
        }

    }

    function view($id = null) {
        if (!$id) {
            $this->Session->setFlash(__('Invalid deal', true));
            $this->redirect(array('action' => 'index'));
        }
        $this->set('deal', $this->Deal->read(null, $id));
    }

    function by_city($CityID = null)
{
    $city = $this->paginate = array(
        'conditions' => array('City.id' => $CityID),
        'limit' => 1
     );
    $this->set('city',$city);


    $this->Retailer->recursive = -1;
    $this->paginate = array(
        'conditions' => array('Deal.city_id' => $CityID),
        'order' => array('Deal.start'=>'desc'),
        'limit' => 3
     );
    $this->set('deals',$this->paginate());

}

并且by_city View 是:

<h3>More Deals from <?php echo $city['City']['city'];?></h3>

现在，当我运行它时，我会收到“身份不明城市”的通知

当我运行var_dump时，它说有一个数组City，而“city”也有一个值，这对我来说听起来像是 Controller 已经通过了

我现在迷路了

感谢所有帮助，如果您需要更多信息，请询问:)

编辑:更改代码-它仍然不能识别变量城市

这是var_dump以显示 Controller 正在传递它:

array(1) {
  [0]=>
  array(3) {
    ["Deal"]=>
    array(15) {
      ["id"]=>
      string(1) "2"
      ["... this part of is fine so ill hide this part of the var_dump
    }
    ["City"]=>
    array(2) {
      ["id"]=>
      string(1) "1"
      ["city"]=>
      string(7) "Glasgow"
    }
  }
}

如您所见，$ city ['City'] ['city']正在传递。 PS我将更改此字段的名称;)

谢谢
戴夫

Answer 1

如果使用CakePHP，则应遵循其方式来检索数据。将代码更改为此:

function by_city($CityID = null)
{
    $this->paginate = array(
      'conditions' => array('City.id' => $CityID),
      'order' => array('Deal.start'=>'desc'),
      'limit' => 3
    );
    $deals = $this->paginate();
    $city = $this->City->find('first',array('conditions'=>array('City.id'=>$CityID)));
    $this->set(compact('deals','city'));
}

编辑:我看到您现在要做什么，请检查上面的代码;)