jiqu-library-server/app/Admin/Controllers/CouponController.php

<?php

namespace App\Admin\Controllers;

use App\Admin\Renderable\CouponRangeTable;
use App\Admin\Repositories\Coupon;
use App\Models\Coupon as CouponModel;
use App\Models\CouponRange;
use Dcat\Admin\Admin;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Http\Controllers\AdminController;
use Dcat\Admin\Layout\Content;
use Dcat\Admin\Show;

class CouponController extends AdminController
{
    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        return Grid::make(new Coupon(), function (Grid $grid) {
            $grid->column('id')->sortable();
            $grid->column('name');
            $grid->column('type')->using([
                1 =>'抵扣券',
                2 =>'折扣券',
            ])->label();
            $grid->column('amount')->display(function ($value) {
                if ($this->type == 1) {
                    return $value.'元';
                } elseif ($this->type == 2) {
                    return $value.'折';
                }
            })->label();
            $grid->column('threshold')->append('元');
            $grid->column('limit');
            $grid->column('sent');
            $grid->column('use_day')->append('天');
            $grid->column('use_start_at');
            $grid->column('use_end_at');
            $grid->column('created_at')->sortable();

            /** 操作 **/
            //新增
            if (Admin::user()->can('dcat.admin.coupons.create')) {
                $grid->disableCreateButton(false);
                $grid->enableDialogCreate();
                $grid->setDialogFormDimensions('40%', '70%');
            }
            //修改
            $grid->showQuickEditButton(Admin::user()->can('dcat.admin.coupons.edit'));
            //删除以及自定义操作
            $grid->actions(function (Grid\Displayers\Actions $actions) {
                $actions->disableDelete(Admin::user()->cannot('dcat.admin.coupons.destroy'));
                if (Admin::user()->can('dcat.admin.coupons.range_list')) {
                    $actions->append('<a href="'.admin_route('coupons.range_list', ['coupon'=>$actions->row]).'"><i class="fa fa-eye"></i> 使用范围</a>');
                }
            });

            /** 查询 **/
            $grid->filter(function (Grid\Filter $filter) {
                $filter->panel();
                $filter->liek('name')->width(3);
            });
        });
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     *
     * @return Show
     */
    protected function detail($id)
    {
        return Show::make($id, new Coupon(), function (Show $show) {
            $show->field('id');
            $show->field('name');
            $show->field('type');
            $show->field('amount');
            $show->field('threshold');
            $show->field('limit');
            $show->field('sent');
            $show->field('use_day');
            $show->field('use_start_at');
            $show->field('use_end_at');
            $show->field('created_at');
            $show->field('updated_at');
        });
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new Coupon(), function (Form $form) {
            $form->display('id');
            $form->text('name')->required();
            $form->radio('type')
                ->when(1, function (Form $form) {
                    $form->currency('amount1')->symbol('￥')->help('例：100.00表示优惠100元。')->value($form->model()->amount);
                })
                ->when(2, function (Form $form) {
                    $form->currency('amount2')->symbol('%')->help('例：0.95表示95折。')->value($form->model()->amount);
                })
                ->options([
                    1 =>'抵扣券',
                    2 =>'折扣券',
                ])->default(1);

            $form->currency('threshold')->symbol('￥')->default(0);
            $form->number('limit')->default(0);
            $form->number('use_day')->default(0)->help('单位：天；指领取后几天内有效。');
            $form->datetimeRange('use_start_at', 'use_end_at', '使用时间')->help('设置时间后，期限字段失效。');
            $form->hidden('amount');

            $form->saving(function (Form $form) {
                $amount = 'amount'.$form->type;
                $form->amount = $form->$amount;

                $form->deleteInput('amount1');
                $form->deleteInput('amount2');
            });

            $form->display('created_at');
            $form->display('updated_at');
        });
    }

    /**
     * 使用范围列表
     *
     * @param Content $content
     * @param CouponModel $coupon
     * @return void
     */
    public function rangeList(Content $content, CouponModel $coupon)
    {
        $builder = CouponRange::where('coupon_id', $coupon->id);
        return $content->header(__('coupon.labels.coupons'))
            ->description($coupon->name)
            ->body(CouponRangeTable::grid($coupon->id));
    }
}