我是否将整数数据类型与其他类型混淆了？

Question

我不知道如何处理不支持的操作数类型的错误：int + App\Models\Rating 但计算正确。它将错误定位到从此 currentRating = round 开始的 public 函数速率。我很困惑，因为它对我来说是新的语言，所以它很模糊。

     <div class="w-full space-y-5">
         <p class="font-medium text-blue-500 uppercase">
             Rating: <strong>{{ $currentRating }}</strong> ⭐ 
         </p>
     </div>

<?php

namespace App\Http\Livewire;

use Livewire\Component;
use App\Models\Rating;

class MovieRatings extends Component
{
    public $rating;
    public $ratings;
    public $currentRating = '-';
    public $comment;
    public $currentId;
    public $movie;
    public $hideForm;

    protected $rules = [
        'rating' => ['required', 'in:1,2,3,4,5'],
        'comment' => 'required',

    ];

    public function mount() 
    {
        if(auth()->user()){
            $rating = Rating::where('user_id', auth()->user()->id)->where('movie_id', $this->movie->id)->first();
            if (!empty($rating)) {
                $this->rating  = $rating->rating;
                $this->comment = $rating->comment;
                $this->currentId = $rating->id;
            }
            $this->ratings = Rating::where('movie_id', $this->movie->id)->get();
            if ($this->ratings->count()) {
            $this->currentRating = round($this->ratings->sum('rating') / $this->ratings->count(), 2) . ' / 5 (' . $this->ratings->count() . ' votes)';
            }
        }
        return view('livewire.movie-ratings');
    }

    public function rate() 
    {
        $rating = Rating::where('user_id', auth()->user()->id)->where('movie_id', $this->movie->id)->first();
        $this->validate();
        if (!empty($rating)) {
            $rating->user_id = auth()->user()->id;
            $rating->movie_id = $this->movie->id;
            $rating->rating = $this->rating;
            $rating->comment = $this->comment;
            $rating->status = 1;
            try {
                $rating->update();
                $this->currentRating = round(($this->ratings->sum('rating') + $rating) / ($this->ratings->count() + 1), 2);
            } catch (\Throwable $th) {
                throw $th;
            }
            session()->flash('message', 'Success!');
        } else {
            $rating = new Rating;
            $rating->user_id = auth()->user()->id;
            $rating->movie_id = $this->movie->id;
            $rating->rating = $this->rating;
            $rating->comment = $this->comment;
            $rating->status = 1;
            
            try {
                $rating->save();
                $this->currentRating = round(($this->ratings->sum('rating') + $rating) / ($this->ratings->count() + 1), 2) . ' / 5 (' . ($this->ratings->count() + 1) . ' votes)';

            } catch (\Throwable $th) {
                throw $th;
            }
            $this->hideForm = true;
        }
    }
}

Answer 1

您可能打算写 + $rating->rating 而不是 + $rating。

$rating 是对象，不是整数。

我是否将整数数据类型与其他类型混淆了？

Did i confuse the integer data type with something else?

php

model-view-controller

laravel

laravel-livewire