<?php
// +----------------------------------------------------------------------
// | 麦沃德科技赋能开发者，助力商协会发展
// +----------------------------------------------------------------------
// | Copyright (c) 2017～2024  www.wdsxh.cn    All rights reserved.
// +----------------------------------------------------------------------
// | 沃德商协会系统并不是自由软件，不加密，并不代表开源，未经许可不可自由转售和商用
// +----------------------------------------------------------------------
// | Author: MY WORLD Team <bd@maiwd.cn>   www.maiwd.cn
// +----------------------------------------------------------------------
namespace app\admin\controller\wdsxh\mall;

use app\common\controller\Backend;
use think\Db;
use think\db\exception\DataNotFoundException;
use think\db\exception\ModelNotFoundException;
use think\exception\DbException;
use think\exception\PDOException;
use think\response\Json;
use Exception;

/**
 * 单商城分类管理
 *
 * @icon fa fa-circle-o
 */
class GoodsCategory extends Backend
{

    /**
     * GoodsCategory模型对象
     * @var \app\admin\model\wdsxh\mall\GoodsCategory
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\wdsxh\mall\GoodsCategory;
        $this->view->assign("statusList", $this->model->getStatusList());
    }



    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */

    /**
     * 查看
     *
     * @return string|Json
     * @throws \think\Exception
     * @throws DbException
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if (false === $this->request->isAjax()) {
            return $this->view->fetch();
        }
        //如果发送的来源是 Selectpage，则转发到 Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        [$where, $sort, $order, $offset, $limit] = $this->buildparams();
        $list = $this->model
            ->where($where)
            ->order($sort, $order)
            ->paginate($limit);

        foreach ($list as &$v) {
            if (!empty($v['pid'])) {
                $v['pid'] = $this->model->where('id',$v['pid'])->value('name');
            } else {
                $v['pid'] = '-';
            }
        }
        $result = ['total' => $list->total(), 'rows' => $list->items()];
        return json($result);
    }

    /**
     * 删除
     *
     * @param $ids
     * @return void
     * @throws DbException
     * @throws DataNotFoundException
     * @throws ModelNotFoundException
     */
    public function del($ids = null)
    {
        if (false === $this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ?: $this->request->post("ids");
        if (empty($ids)) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $pk = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = $this->model->where($pk, 'in', $ids)->select();

        $goodsModel = new \app\admin\model\wdsxh\mall\Goods();
        foreach ($list as $item) {
            $childCategoryCount = $this->model->where('pid',$item['id'])->count();
            if ($childCategoryCount) {
                $this->error('请先删除父级分类：'.$item['name'].'，下的子分类');
            }
            unset($childCategoryCount);

            $goodsCount = $goodsModel->where('category_id',$item['id'])->count();
            if ($goodsCount) {
                $this->error('分类：'.$item['name'].'，有商品，无法删除');
            }
            unset($childCategoryCount);
        }

        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                $count += $item->delete();
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success();
        }
        $this->error(__('No rows were deleted'));
    }


}