Question

我需要将多个对象发送到api资源。所以我要在数组内返回多个Object。一切正常，但不显示任何分页元数据。例如Current_page，next_page网址等。

#navbar {
  overflow: hidden;
  background: rgba(139, 139, 157, 0);
  display: flex;
  justify-content: flex-end;
  border-bottom: 5px solid white;
  padding-bottom: 20px;
  padding-top: 20px;
  position: fixed;
  top: 0;
  width: 100%;
}
.content {
  padding: 60px 16px 16px 16px;
  color: #ddd;
  background-color: #FFF
}

我的资源

return [                  
            'across_city' => ServiceProviderCollection::collection($across_city),
            'near_by' => ServiceProviderCollection::collection($near_by)
          ];

我的控制器： 在这里，我有两种类型的用户。用户和整个城市的用户。我将它们作为数组发送到ServiceProviderCollection。

<?php
namespace App\Http\Resources;
use Illuminate\Http\Resources\Json\Resource;

    class ServiceProviderCollection extends  Resource
    {

        public function toArray($request)
        { 

            return
            [  

                'name'=>$this->forename,
                'rating'=>$this->rating,
                'price'=>$this->price,
                'distance'=>round($this->distances,1),

            ];
        }
    }

我想要带有分页的Json Data。

$user_city = $userObj->location->city;
$locationObj = Location::whereNotIn('id', $blockeduser)->where('city',$user_city)->first();
$across_city = $locationObj->users()->simplePaginate(20);

    $near_by =  User::join('locations as l', 'users.location_id', '=', 'l.id')
        ->select('users.*', DB::raw('(6371 * acos(cos(radians(' . $coordinates['latitude'] . ')) * cos(radians(`lat`)) * cos(radians(`lng`) - radians(' . $coordinates['longitude'] . ')) + sin(radians(' . $coordinates['latitude'] . ')) * sin(radians(`lat`)))) as distances'))
        ->having('distances', '<', $max_distance)
        ->orderBy('distances', 'ASC')
        ->where('role_id',2)
        ->whereNotIn('id', $blockeduser)
        ->simplePaginate(20);

    return [
                'across_city' => ServiceProviderCollection::collection($across_city),
                'near_by' => ServiceProviderCollection::collection($near_by)
           ];

Answer 1

我不知道ServiceProviderCollection的目的是什么。如果它创建了常规集合，则会有better way to do so。

要能够对简单的集合进行分页，您需要将此辅助函数添加到基础中：

function paginateCollection($items, $perPage = 15, $page = null, $options = [])
{
    $page = $page ?: (\Illuminate\Pagination\Paginator::resolveCurrentPage() ?: 1);
    $items = $items instanceof \Illuminate\Support\Collection ? $items : \Illuminate\Support\Collection::make($items);
    return new \Illuminate\Pagination\LengthAwarePaginator($items->forPage($page, $perPage), $items->count(), $perPage, $page, $options);
}

使用此功能，您可以制作

return [                  
    'across_city' => paginateCollection(collect($across_city), 20),
    'near_by' => paginateCollection(collect($near_by), 20)
];

编辑

您是否已生成相应的资源集合？
像这样：php artisan make:resource Cities --collection

如果是，则可以返回paginated resource collection

返回数组Api资源对象时分页

1 个答案:

编辑