mysql - 如何返回商店评论大于或等于输入的所有商品 - Laravel 5.2

Question

项目.php

class Item extends Model {

     public function shop()
     {
        // belongsTo and not belongsToMany since shops sell used goods, not new goods

        return $this->belongsTo('App\Shop');
     }
}

Shop.php

class Shop extend Model {

      public function reviews()
      {
          return $this->hasMany('App\Review');
      }

      public function getRating()
      {
           // I could also do $this->reviews->avg('rating');

           $reviews = $this->reviews->toArray();
           $reviews = array_column($reviews, 'rating');
           $reviews = array_sum($reviews);
           $rating  = round(($reviews / $this->reviews->count()));

           return $rating;
      }
}

我想用上面的代码做的是返回平均商店评论大于或等于给定输入的所有商品。例如，如果用户选择 5 颗星中的 3 颗星，则返回平均商店评论为 3 或更高的所有商品。我想退回商品，而不是商店。所以像

$input = request('input'); // ie: 3
Item::where(*average shop review*, '>=', $input)->get();

问候，

Answer 1

您可以尝试使用以下代码:

$items = Items::where($this->Shop->reviews->avg('rating'),'>',$input)
                ->get()->toArray();

获取商品数据和商店数据。

$items = Shop::where($this->reviews->avg('rating'),'>',$input)
               ->with('Item')->get()->toArray();