hainan/app/AdminAgent/Controllers/SpecialController.php

<?php

namespace App\AdminAgent\Controllers;

use App\AdminAgent\Renderable\SelectAgentProduct;
use App\AdminAgent\Repositories\Special;
use App\Models\AgentProduct;
use Dcat\Admin\Admin;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Show;
use Dcat\Admin\Http\Controllers\AdminController;
use Dcat\Admin\Widgets\Table;
use Illuminate\Support\Facades\Storage;

class SpecialController extends AdminController
{
    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        return Grid::make(new Special(), function (Grid $grid) {
			$grid->disableFilterButton();

        	$grid->model()->where('agent_id', Admin::user()->id);

            $grid->column('id')->sortable();
            $grid->column('picture_ad')->image('', 60, 60);
			$grid->column('agent_product_id', '专题产品')
				->display('查看')
				->modal(function ($modal) use ($grid) {
					$data = AgentProduct::with('product:id,title,pictures')
						->whereIn('id', $this->agent_product_id)
						->get(['id', 'product_id', 'sale', 'stock']);
					$result = [];
					$prefix = Storage::disk('public')->url('');
					foreach ($data as $k => $v) {
						$result[] = [
							$v->id,
							$v->product->title,
							'<img data-action="preview-img" src="'.$prefix.$v->product->picture.'" style="max-width:60px;max-height:60px;cursor:pointer" class="img img-thumbnail">',
							$v->sale,
							$v->stock,
						];
					}
					return Table::make(['产品ID', '标题', '图片', '销量', '库存'], $result);
				});
            $grid->column('sort');
            $grid->column('created_at');
            $grid->column('updated_at')->sortable();

            $grid->filter(function (Grid\Filter $filter) {
            	$filter->panel();

                $filter->equal('id');
            });
        });
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     *
     * @return Show
     */
    protected function detail($id)
    {
        return Show::make($id, new Special(), function (Show $show) {
			//不允许查看非自己的数据
			if ($show->model()->agent_id != Admin::user()->id) {
				Admin::exit('数据不存在');
			}

			$show->field('id');
			$show->field('picture_ad')->image('', 80, 80);
            $show->field('picture')->image('', 80, 80);
			$show->field('agent_product_id', '产品')
				->unescape()
				->as(function ($v) {
					$data = AgentProduct::with('product:id,title')
						->whereIn('id', $v)
						->orderBy('id')->get(['id', 'product_id']);
					return join("<br>", $data->map(fn($v) => $v->product->title)->toArray());
				});
            $show->field('sort');
            $show->field('created_at');
            $show->field('updated_at');
        });
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new Special(), function (Form $form) {
			//不允许查看非自己的数据
			if ($form->isEditing() && $form->model()->agent_id != Admin::user()->id) {
				return $form->response()->error('数据不存在');
			}

			$form->display('id');
			$form->image('picture_ad')
				->required()->removable(false)->uniqueName()
				->help('图片大小：750*230');
			$form->multipleImage('picture')
				->required()->removable(false)->uniqueName()
				->help('图片大小：750*490');
			$form->multipleSelectTable('agent_product_id')
				->title('选择在售产品')->required()
				->dialogWidth('80%;min-width:825px;')
				->from(SelectAgentProduct::make())
				->options(function ($v) {
					if (!$v)  return [];
					$agent_product = AgentProduct::with('product:id,title')
						->select(['id', 'product_id'])
						->whereIn('id', $v)
						->orderBy('id')->get();
					$result = [];
					foreach ($agent_product as $v) {
						$result[$v->id] = $v->product->title ?? '';
					}
					return $result;
				})
				->pluck('product.title')
				->value(join(',', $form->model()->agent_product_id ?? []));
            $form->text('sort')->default(255);
        })->saving(function (Form $form) {
			//不允许修改非自己的数据
			if ($form->isEditing() && $form->model()->agent_id != Admin::user()->id) {
				return $form->response()->error('数据不存在');
			}

			//处理特殊字段
			$form->hidden(['agent_id', 'created_at', 'updated_at']);
			$form->agent_id = Admin::user()->id;

			//不允许编辑的字段
			$form->ignore(['id', 'agent_id', 'created_at', 'updated_at']);
		})->deleting(function (Form $form) {
			//不允许删除非自己的数据
			if ($form->model()[0]['agent_id'] != Admin::user()->id) {
				return $form->response()->error('数据不存在');
			}
		});
    }
}