Question

用户应该能够为多本书籍设置评分，这允许用户为仅一本书而不是其他书籍设置评分。

问题

用户无法对进行其他评分另一本书。但是，另一个用户可以对同一本书进行评分，但是不能对同一本书进行评分其他书籍。即使用户注销也不会。

我正在使用rateYo和laravel-ratable

我的设置方式是，默认情况下将评级type设置为false，从而使用户可以设置星星并进行相当大的评级。

再一次，一旦用户对任何书籍进行评分都没关系，则评分type设置为true，将使用户无法设置星级。

这就是我拥有的

这是html设置的样子

HTML

  <div id="rateYo" data-rateyo-rating="{{  $book->userSumRating or 0}}" data-rateyo-read-only="{{ $book->rated ? 'true' : 'false' }}"></div`>

BookController.php

  public function rate(Request $request, $book_id)
    {

        $book = Book::find($book_id);
        $rating = $book->ratings()->where('user_id', auth()->user()->id)->first();

        if(is_null($rating)){
            $ratings = new Rating();
            $ratings->rating =  $request['rating'];
            $ratings->user_id = auth()->user()->id;
            $ratings->type = Book::RATED;
            $book->ratings()->save($ratings);



            return json_encode($book);

        }
        else{
           return response()->json(['status' => 'You already left a review']);
        }
    }

    public function show($book_name)
    {
        $books = Book::GetBook($book_name)->get();


        $data = $books->map(function(Book $book){


            $book['rated'] =  $book->type; 

            return $book;

        });

        return view('books.show', compact('data', $data));
    }

Book.php （相关代码）默认情况下，如果未设置评分，则类型等于false，使用户能够进行评分；如果设置了评分，则类型等于真正禁用星标功能/阅读模式。

use Rateable;

const RATED = "true";
const NOT_RATED = "false";

protected $fillable = [ 'user_id', 'title', 'description'];

protected $appends = ['rated'];


public function getRatedAttribute()
{
    return Rate::where('type',  $this->owl() )->where('user_id', auth()->user()->id )->first();
}


public function owl(){

    foreach($this->rate as $rates){
        if ($rates->type != "true"){
            return self::NOT_RATED;
        }

    }
    return self::RATED;

}


public function rate()
{   
    return $this->hasMany('App\Rate', 'type', 'user_id');
}

Answer 1

您需要在where子句中添加书籍ID，以检查用户是否对该特定书籍留下了评价。有了它，它将找到用户为任何图书留下的第一评价。

$constraints = [
    'user_id' => auth()->id(),
    'book_id' => $book_id
];

// checks if the user has not left a rating for this particular book
if ($book->ratings()->where($constraints)->doesntExist()) {
    // create new rating...
} else {
    // user has already rated this book...
}

Answer 2

我需要将我的Book型号更改为以下型号，谢谢您数字化引导我朝着正确的方向

Book.php

public function getRatedAttribute()
{
    $this->constraints = [
        'user_id' => auth()->id()
    ];

    if(Rating::where($this->constraints)->exists()){

        return Rating::where(['type' => self::RATED, 'book_id' => $this->getKey()])->first();
    }else{
        return Rating::where('type' ,self::NOT_RATED)->first();
    }

}

laravel auth（）不允许用户发出发布请求

2 个答案: