hainan/app/AdminAgent/Controllers/DemandBiddingController.php

<?php

namespace App\AdminAgent\Controllers;

use App\AdminAgent\Repositories\DemandBidding;
use App\Models\Demand;
use App\Traits\DemandTraits;
use Dcat\Admin\Admin;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Show;
use Dcat\Admin\Http\Controllers\AdminController;
use http\Env\Request;
use Illuminate\Support\Arr;

class DemandBiddingController extends AdminController
{
    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        return Grid::make(new DemandBidding(['demand']), function (Grid $grid) {
			$grid->model()->where(['bidding_user_id' => Admin::user()->id,'bidding_user_type' => Arr::first(DemandTraits::$col)]);
            $grid->column('id')->sortable();
            $grid->column('price');
            $grid->column('comment');
			$grid->column('demand.title','竞拍标题');
			$grid->column('demand.comment','竞拍内容')
				->display('查看')
				->modal('详情',function ($modal) {
					$modal->xl();
					return $this->demand->comment;
				});

			$grid->column('state','状态')->using(DemandTraits::$biddingState)->dot(
				[
					'yellow',
					'success',
					'danger',
				]
			);
            $grid->column('created_at');
            $grid->column('updated_at')->sortable();
			$grid->disableDeleteButton();
			$grid->disableEditButton();
			$grid->disableQuickEditButton();
			$grid->disableViewButton();
			$grid->disableCreateButton();
			$grid->disableActions();
			$grid->disableRowSelector();
            $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 DemandBidding(), function (Show $show) {
            $show->field('id');
            $show->field('price');
            $show->field('comment');
            $show->field('created_at');
            $show->field('updated_at');
        });
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new DemandBidding(), function (Form $form) {
			$demand_id = request('demand_id');

			$isBidding = \App\Models\DemandBidding::query()
				->where('demand_id',$demand_id)
				->where([
					'bidding_user_type' => DemandTraits::$col[0],
					'bidding_user_id' => Admin::user()->id
				])
				->exists();
			if ($demand_id && $isBidding) {
				Admin::exit('你已经竞标过了，无需重复参加');
			}
			$form->disableEditingCheck();
			$form->disableCreatingCheck();
			$form->disableViewCheck();
        	$form->display('id');
            $form->text('price')->required();
            $form->textarea('comment')->required();
			$form->hidden('demand_id')->value(request('demand_id',0));
			$form->hidden('bidding_user_type');
			$form->hidden('bidding_user_id');
			$form->saving(function (Form $form) {
				$provinceId = Demand::query()->where('id',$this->demand_id)->value('province_id');

				if ($provinceId != Admin::user()->province_id) {
					$form->response()->error('竞标失败,只能竞标跟自己相同省份的的需求');
				}
				// 判断是否是新增操作
				if ($form->isCreating()) {
					//发布人身份
					$form->bidding_user_type = DemandTraits::$col[0];
					$form->bidding_user_id = Admin::user()->id;
				}
				$form->response()->success('操作成功')->redirect('demand_bidding');
			});
        });
    }
}