如何从购物车模型中获取产品和图片表

Question

如何通过一次查询得到这张树表？

这是我的产品表

Schema::create('products', function (Blueprint $table) {
            $table->id();
            $table->string('slug');
            $table->foreignId('subcategory_id')->constrained()->onDelete('cascade')->onUpdate('cascade');
            $table->string('title');
            $table->integer('price');
            $table->text('description')->nullable();
            $table->timestamps();
        });

这是图片表

Schema::create('images', function (Blueprint $table) {
            $table->id();
            $table->foreignId('product_id')->constrained()->onDelete('cascade')->onUpdate('cascade');
            $table->string('path');
            $table->timestamps();
        });

这是推车桌

Schema::create('carts', function (Blueprint $table) {
            $table->id();
            $table->string('session_id')->nullable();
            $table->foreignId('user_id')->nullable()->constrained()->onDelete('cascade')->onUpdate('cascade');
            $table->foreignId('product_id')->constrained()->onDelete('cascade')->onUpdate('cascade');
            $table->integer('item_qty')->nullable(false);
            $table->timestamps();
        });

这就是我获取产品表的方式

$cartItems = Cart::with('product')
                        ->get();

但是我无法获取图像表

Answer 1

产品型号

public function images()
{
  return $this->hasMany('App\Models\Image', 'product_id');
}

$cartItems = Cart::with('product.images')->get();