hainan/app/AdminSupplier/Controllers/ProductController.php

<?php

namespace App\AdminSupplier\Controllers;

use App\AdminSupplier\Repositories\Product;
use App\Common\ProductStatus;
use App\Models\Category;
use Dcat\Admin\Admin;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Show;
use Dcat\Admin\Http\Controllers\AdminController;

class ProductController extends AdminController
{
	protected $title = '产品';
    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        return Grid::make(new Product(['category:id,name']), function (Grid $grid) {
        	$grid->model()->where('supplier_id', Admin::user()->id);

            $grid->column('id')->sortable();
            $grid->column('category.name', '产品分类');
            $grid->column('title');
			$grid->column('picture')->image(60, 60);
            $grid->column('price');
            $grid->column('original_price');
            $grid->column('stock');
            $grid->column('sale');
            $grid->column('status')->using(ProductStatus::array());
            $grid->column('created_at');
            $grid->column('updated_at');

            $grid->filter(function (Grid\Filter $filter) {
                $filter->equal('id');

            });
        });
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     *
     * @return Show
     */
    protected function detail($id)
    {
        return Show::make($id, new Product(), function (Show $show) {
            $show->field('id');
            $show->field('supplier_id');
            $show->field('category_id');
            $show->field('title');
            $show->field('price');
            $show->field('original_price');
            $show->field('pictures')->image(80, 80);
            $show->field('stock');
            $show->field('sale');
            $show->field('status');
            $show->field('know')->unescape()->as(fn($v) => preg_replace('/<script.*?>.*?<\/script>/is', '', $v));
            $show->field('content')->unescape()->as(fn($v) => preg_replace('/<script.*?>.*?<\/script>/is', '', $v));
            $show->field('created_at');
            $show->field('updated_at');
        });
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new Product(), function (Form $form) {
			//不允许编辑非自己数据
			if ($form->isEditing() && $form->model()->supplier_id != Admin::user()->id) {
				return $form->response()->error('数据不存在');
			}

			$form->display('id');

			$options = Category::selectOptions(fn($query) => $query->where('agent_id', 0));
            $form->select('category_id')->options(array_slice($options, 1))->required();
            $form->text('title')->required();
            $form->text('price')->required();
            $form->text('original_price')->required();
            $form->multipleImage('pictures')->required();
            $form->text('stock')->default(9999)->required();
            $form->editor('know');
            $form->editor('content')->required();
        })->saving(function (Form $form) {
        	//不允许编辑非自己数据
			if ($form->isEditing() && $form->model()->supplier_id != Admin::user()->id) {
				return $form->response()->error('数据不存在');
			}

			//不允许编辑的字段
			$form->ignore(['id', 'supplier_id', 'sale', 'created_at', 'updated_at', 'deleted_at']);

			//null字段转为''
			foreach ($form->input() as $k => $v) {
				if (is_null($v)) {
					$form->$k = '';
				}
			}

			//特殊字段处理
			$form->status = ProductStatus::UNAUDITED;
			$form->supplier_id = Admin::user()->id;
		})->deleting(function (Form $form) {
			//这里获取字段值和saving不同
			if ($form->model()[0]['supplier_id'] != Admin::user()->id) {
				return $form->response()->error('删除失败');
			}
		});
    }
}