使用->find($id)
将查询存储在变量中后添加数据非常简单。我可以用..
$photo = Photo::with('likes')->find($id);
$photo->total_likes = $photo->likes->count();
return response()->json($photos, 200);
就像魅力一样......所以我不需要使用for循环
但是,如果我想将数据添加到分页结果中该怎么办?
$photos = Photo::with('likes')->where('user_id', $user_id)->paginate(15);
return response()->json($photos, 200);
这样,我收到的数据就是:
"total": 5,
"per_page": 15,
"current_page": 1,
"last_page": 1,
"next_page_url": null,
"prev_page_url": null,
"from": 1,
"to": 5,
"data": [
"likes": [each like object..]
]
如何在分页结果后使用$photo->total_likes = $photo->likes->count();
方法返回总计数?
答案 0 :(得分:1)
您可以通过创建自定义分页器实例来实现此目的。例如:
public function getNews() {
$news = \App\News::select()->orderBy('created_at', 'desc')->get();
$collection = $this->prepareNews($news);
return $this->paginator($collection);
}
protected function prepareNews($news) {
// do stuff with your news/whatever here
foreach($news as $item) {
'title' => $item->title,
'category' => $item->category_id != 0 ? $categories[$item->category_id]['name'] : null,
}
// Note the collect, this is important
return collect($arr);
}
protected function paginator(\Illuminate\Support\Collection $items, $perPage = 3) {
//Get current page form url e.g. &page=6
$currentPage = Paginator::resolveCurrentPage() - 1;
$currentPageSearchResults = $items->slice($currentPage * $perPage, $perPage)->all();
return new Paginator($currentPageSearchResults, count($items), $perPage);
}