php - Rest api cakephp 分页

Question

我一直在研究cakephp。我创建了一个 Api 并配置了路由，但我想在 json 结果中显示分页，但我不能

这是我的代码:

class DronesController extends AppController {


  public $paginate = [
      'page' => 1,
      'limit' => 5,
      'maxLimit' => 6,
      'fields' => [
          'id', 'user_id'
      ],
      'sortWhitelist' => [
          'id', 'user_id'
      ]
  ];

  public function initialize()
      {
          parent::initialize();
          $this->loadComponent('Paginator');
      }
  public function view($id)
  {
      $drone = $this->Drones->find()->where(['Drones.user_id' => $id], [
          'contain' => ['Accounts', 'Cards', 'Pilotlogs']
      ]);
      $this->set('drone', $this->paginate($drone));
      $this->set('_serialize', ['drone']);
  }
}

这是我得到的结果:https://i.sstatic.net/obMyn.jpg

我希望它是这样的:https://i.sstatic.net/xDgBw.jpg

Answer 1

如果您使用的是CakePHP 3，您可以在请求参数中检索Paginator组件生成的分页数据。

在您的AppController.php中，将其放在序列化变量检查之前。

if ($this->request->param('paging') !== false &&
    in_array($this->response->type(), ['application/json', 'application/xml'])
) {
    $this->set('paging', current($this->request->param('paging')));
}

该函数现在如下所示:

public function beforeRender(Event $event)
{
    if ($this->request->param('paging') !== false &&
        in_array($this->response->type(), ['application/json', 'application/xml'])
    ) {
        $this->set('paging', current($this->request->param('paging')));
    }
    if (!array_key_exists('_serialize', $this->viewVars) &&
        in_array($this->response->type(), ['application/json', 'application/xml'])
    ) {
        $this->set('_serialize', true);
    }
}

if语句用于检查分页数据是否存在。

$this->request->param('paging') // returns false if it does not exist

您可能会注意到 current() 部分。我用它来去掉型号名称。

如果不使用current()，结果将是:

"paging": {
    "Posts": {
        "finder": "all",
        "page": 1,
        "current": 6,
        "count": 6,
        "perPage": 10,
        "prevPage": false,
        "nextPage": false,
        "pageCount": 1,
        "sort": null,
        "direction": false,
        "limit": null,
        "sortDefault": false,
        "directionDefault": false
    }
}

使用current()结果将是:

"paging": {
    "finder": "all",
    "page": 1,
    "current": 6,
    "count": 6,
    "perPage": 10,
    "prevPage": false,
    "nextPage": false,
    "pageCount": 1,
    "sort": null,
    "direction": false,
    "limit": null,
    "sortDefault": false,
    "directionDefault": false
}

CakePHP 的 PaginatorHelper 使用此方法来访问分页数据。

来源/引用:Cake\View\Helper\PaginatorHelper

干杯。