lkafu/app/Admin/Controllers/GoodsController.php

<?php

namespace App\Admin\Controllers;

use App\Models\Category;
use App\Models\Goods;
use Encore\Admin\Controllers\AdminController;
use Encore\Admin\Form;
use Encore\Admin\Grid;
use Encore\Admin\Layout\Content;
use Encore\Admin\Show;
use Illuminate\Support\MessageBag;

class GoodsController extends AdminController
{

    /**
     * Index interface.
     *
     * @param Content $content
     * @return Content
     */
    public function index(Content $content)
    {

        return $content
            ->header('商品管理')
            ->description('description')
            ->body($this->grid());
    }

    /**
     * Edit interface.
     *
     * @param mixed $id
     * @param Content $content
     * @return Content
     */
    public function edit($id, Content $content)
    {
        return $content
            ->header('编辑商品')
            ->body($this->form()->edit($id));
    }

    /**
     * Create interface.
     *
     * @param Content $content
     * @return Content
     */
    public function create(Content $content)
    {
        return $content
            ->header('新增商品')
            ->body($this->form());
    }

    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        $grid = new Grid(new Goods);

        $grid->model()->orderBy('id', 'desc');

        $grid->filter(function ($filter) {
            $filter->column(1 / 3, function ($filter) {
                $filter->like('title', '商品名称');
                $filter->like('category.id', '所属分类')->select(Category::selectOptions(function ($model) {
                    return $model->where('status', 1)->where('type', 'goods');
                }, '所有分类'));
            });

            $filter->column(1 / 3, function ($filter) {
                $filter->equal('status', '商品状态')->select([
                    1 => '正常',
                    0 => '禁用',
                ]);
                $filter->equal('type', '商品类型')->select([
                    'member' => '会员商品',
                    'pick'   => '提货商品',
                ]);

            });

            $filter->column(1 / 3, function ($filter) {
                $filter->equal('is_hot_sell', '热销推荐')->select([
                    1 => '是',
                    0 => '否',
                ]);
                $filter->equal('is_recommend', '最新推荐')->select([
                    1 => '是',
                    0 => '否',
                ]);
            });

            $filter->disableIdFilter();

        });

        $grid->id('序号');
        $grid->cover('封面')->image('', 60, 60);
        $grid->title('商品名称');
        $grid->column('所属分类')->display(function () {
            return $this->category->title;
        });
        $grid->description('简介');
        $grid->column('类型')->display(function () {
            return $this->type_text;
        });
        $grid->status('状态')->switch([
            'on'  => ['value' => 1, 'text' => '正常', 'color' => 'primary'],
            'off' => ['value' => 0, 'text' => '禁用', 'color' => 'danger'],
        ]);
        $grid->is_hot_sell('热销推荐')->switch([
            'on'  => ['value' => 1, 'text' => '是', 'color' => 'primary'],
            'off' => ['value' => 0, 'text' => '否', 'color' => 'danger'],
        ]);

        $grid->is_recommend('最新推荐')->switch([
            'on'  => ['value' => 1, 'text' => '是', 'color' => 'primary'],
            'off' => ['value' => 0, 'text' => '否', 'color' => 'danger'],
        ]);

        $grid->created_at('创建时间');
        $grid->actions(function (Grid\Displayers\Actions $actions) {
            if ($this->row->type == 'pick') {
                $actions->disableDelete();
            }
            $actions->disableView();
        });
        return $grid;
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     * @return Show
     */
    protected function detail($id)
    {
        $show = new Show(Goods::findOrFail($id));

        $show->id('编号');
        $show->name('商品名称');
        $show->created_at('创建时间');

        return $show;
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        $form = new Form(new Goods);

        $form->text('title', '商品名称')->rules('required');
        $form->select('category_id', '所属分类')->options(Category::selectOptions(function ($model) {
            return $model->where('status', 1)->where('type', 'goods');
        }, '选择分类'))->rules('required');

        $form->textarea('description', '简介')->rules('required|max:255', [
            'required' => '简介不能为空',
            'max'      => '简介不能超过255字',
        ]);

        $form->image('cover', '封面')->rules('required')->uniqueName();
        $form->radio('type', '类型')->options(['member' => '会员产品', 'pick' => '提货商品'])->default('member');
        $form->editor('content', '详情')->rules('required', ['required' => '详情不能为空']);
        $form->switch('status', '状态')->default(1);
        $form->switch('is_recommend', '最新推荐')->default(0);
        $form->switch('is_hot_sell', '热销推荐')->default(0);

        $form->hasMany('params', '产品属性', function (Form\NestedForm $form) {
            $form->text('value', '名称')->rules('required');
            $form->text('original', '原价')->rules('required');
            $form->text('price', '会员价')->rules('required');
            $form->text('stock', '库存')->rules('required');
            $form->text('one', '一级佣金')->rules('required');
            $form->text('two', '二及佣金')->rules('required');
        })->rules('required');

        $form->saving(function (Form $form) {
            if (request()->has('title')) {
                $params       = request()->params;
                $params_count = empty($params) ? 0 : count($params);
                if (!$params_count) {
                    $error = new MessageBag([
                        'title'   => '错误',
                        'message' => '必须添加产品属性',
                    ]);
                    return back()->with(compact('error'));
                }
                $remove = 0;

                foreach ($params as $key => $param) {
                    if ($param['_remove_'] == 1) {
                        $remove++;
                    }
                }

                if ($remove == $params_count) {
                    $error = new MessageBag([
                        'title'   => '错误',
                        'message' => '必须添加产品属性',
                    ]);
                    return back()->with(compact('error'));
                }
            }

        });

        $form->saved(function (Form $form) {
            $goods_id = $form->model()->id;
            $goods    = Goods::find($goods_id);
            $price    = $goods->params()->orderBy('price', 'asc')->value('price');
            if ($price) {
                $goods->price = $price;
                $goods->save();
            }

        });

        return $form;
    }

}