Laravel 分页与 Laravel 5.4 中有很多关系

Question

我有两个模型

专辑

public function AlbumImage(){

        return $this->hasMany('App\AlbumGallery');
    }

相册库

在控制器中我有以下代码

  $data=  Album::where('id', $id)->with('AlbumImage')->first();

现在我只需要对相册画廊进行分页。我尝试了以下方法，但它不起作用

   $data=  Album::where('id', $id)->with('AlbumImage')->first()->paginate(2);

也试过这个问题的答案 Laravel Eloquent pagination on relationships

Answer 1

因此，尊重your mentioned answer，添加到您的Album 模型中：

public function getAlbumImagePaginatedAttribute()
{
    return $this->AlbumImage()->paginate(3);
}

并在刀片视图文件中使用它，如下所示：

{{ $album->name }}<br>

<ul>
@foreach($album->album_image_paginated as $album_gallery)
    <li>{{ $album_gallery->gallery_name }}</li>
@endforeach
</ul>

{{ $album->album_image_paginated->links() }}

对于 API 调用，您可以使用如下内容：

Route::get('/albums/{id}', function($id) {

   $album = \App\Album::findOrFail($id);

   return [
       'id' => $album->id,
       'images' => $album->album_image_paginated,
   ];
});

所以响应将是：

{  
   "id":1,
   "images":{  
      "total":6,
      "per_page":3,
      "current_page":1,
      "last_page":2,
      "next_page_url":"http://example.app/api/albums/1?page=2",
      "prev_page_url":null,
      "from":1,
      "to":3,
      "data":[  
         {  
            "id":1,
            "gallery_name":"first image",
            "album_id":1,
            "created_at":"2017-02-22 09:47:46",
            "updated_at":"2017-02-22 09:47:46"
         },
         {  
            "id":2,
            "gallery_name":"Second",
            "album_id":1,
            "created_at":"2017-02-22 09:48:31",
            "updated_at":"2017-02-22 09:48:31"
         },
         {  
            "id":3,
            "gallery_name":"33",
            "album_id":1,
            "created_at":"2017-02-22 09:48:35",
            "updated_at":"2017-02-22 09:48:35"
         }
      ]
   }
}

希望这会有所帮助！