在 Laravel API 响应中循环所有数据

Question

我正在开发一个 API，在图书模型中，我想给出一个包含图书和图书收藏状态的响应。如果经过身份验证的用户收藏了这本书，那么它应该是真的，否则它应该是假的。这是我想出的代码，但这段代码只循环一次。它有一种方法可以让我循环响应中的所有书籍吗？

public function indexapi(Request $request)
    {
    $books = BookResource::collection(Book::with('author')->Paginate(16));
    $count = Book::with('author')->count();
    $Fav = Favorite::where('book_id', $request->book_id)->where('user_id', $request->user_id)->exists();
      foreach($books as $key => $book) {
            return response()->json([
          'book' => $book, 
          'Favorited' => $Fav,
          ]
      );  
    }

我正在尝试在我的 API 响应中循环书籍和收藏夹以获得这样的响应

{
    "book": {
        "id": 2,
        "name": "4.50 from Paddington",
        "author": {
            "id": 2,
            "name": "Agatha Christie",
        },
    },

    "Favorited": false
}

{
    "book": {
        "id": 2,
        "name": "4.50 from Paddington",
        "author": {
            "id": 2,
            "name": "Agatha Christie",
        },
    },

    "Favorited": false
}

{
    "book": {
        "id": 2,
        "name": "4.50 from Paddington",
        "author": {
            "id": 2,
            "name": "Agatha Christie",
        },
    },

    "Favorited": true
}

我陷入了困境

我尝试过同时使用“while 循环”和“foreach”。

Answer 1

它只循环一次，因为它会遇到 return 语句，当它遇到时，循环将停止执行，试试这个，因为我没有测试它，看看它是否适合你

 public function indexapi(Request $request)
    {
    $books = BookResource::collection(Book::with('author')->Paginate(16));
    $count = Book::with('author')->count();
    $Fav = Favorite::where('book_id', $request->book_id)->where('user_id', 

$request->user_id)->exists();
$books_array=[];

      foreach($books as $key => $book) {
//this is if you are pushing without key
array_push($books_array,$book);
//now with keys
$books_array['books']=$book;
$books_array['favourited']=$fav;
      );  
/*for efficiency, you can add the favourited outside the loop and delete it in the loop and it will look like this */
$books_array['favourited']=$fav;
return response()->json(['books'=>$books_array]);
          );


    }