fastadmin_tailored/application/common/service/SkuSpec.php

<?php

namespace app\common\Service;

use app\common\model\SkuSpec as SkuSpecModel;

 class SkuSpec
 {
    /**
     * 获取指定商品的SKU信息
     * @param int $goods_id 商品ID
     * @return array
     */
    public static function getGoodsSkuSpec($goods_id)
    {
        $list = (new SkuSpecModel())
             ->field('MIN(`id`) AS `id`, MIN(`goods_id`) AS `goods_id`, `spec_id`')
             ->where('goods_id', $goods_id)
             ->with([
                'Spec',
                'SkuValue' => function ($query) use ($goods_id) {
                    $query->where('goods_id', $goods_id)
                    ->field('id,goods_id,spec_id,spec_value_id')
                    ->with(['SpecValue']);
                }
            ])->group('spec_id')->select();

        $list = collection($list)->toArray();
        return $list;
    }
 }