lianjie_admin/app/Admin/Forms/v3/GoodsImageForm.php

<?php

namespace App\Admin\Forms\v3;

use App\Models\v3\GoodsBanners;
use Dcat\Admin\Widgets\Form;
use Symfony\Component\HttpFoundation\Response;
use App\Models\v3\Goods as GoodsModel;
use App\Models\v3\GoodsBanners as GoodsBannerModel;
use Illuminate\Support\Facades\DB;

class GoodsImageForm extends Form
{

    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return Response
     */
    public function handle(array $input)
    {
        // 获取外部传递参数
        $goodsId = $input['goods_id'];
        $coverImg= $input['cover_img'];
        $bannerImg= $input['img_banner'];
        
        if($goodsId > 0 && !empty($coverImg)){
            $data = ['cover_img' => $coverImg];
            GoodsModel::where('id',$goodsId)->update($data); 
        }
        if($goodsId > 0 && !empty($bannerImg)){
            $banner = GoodsBannerModel::where('goods_id',$goodsId)->first();
            if(empty($banner)){
                $banner = new GoodsBanners();
                $banner->goods_id = $goodsId;
                $banner->type = 1;
                $banner->created_at = time();
            }
            $banner->path = $bannerImg;
            $banner->updated_at = time();
            $banner->save();
        }
        
        return $this->error('修改成功');
    }

    /**
     * Build a form here.
     */
    public function form()
    {
        $id = $this->getKey();
        $goods = GoodsModel::select('name')->find($id);
        $goodName = empty($goods->name)?'':$goods->name;
        $this->hidden('goods_id')->value($id);
        $this->display('name','商品名称')->value($goodName);
        $this->image('cover_img','封面图')->autoUpload();
        $this->image('img_banner','轮播图')->autoUpload();
    }

    /**
     * The data of the form.
     *
     * @return array
     */
    public function default()
    {
        return [];
    }

}