app/admin/controller/Goods.php

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<?php
/**
 * 人人站CMS
 * ============================================================================
 * 版权所有 2015-2030 山东康程信息科技有限公司，并保留所有权利。
 * 网站地址: http://www.rrzcms.com
 * ----------------------------------------------------------------------------
 * 如果商业用途务必到官方购买正版授权, 以免引起不必要的法律纠纷.
 * ============================================================================
 */

namespace app\admin\controller;

use app\admin\model\Goods as Good;

class Goods extends Base
{

    /**
     * 产品列表
     * @return false|string
     * @throws \Exception
     */
    function index() {
        $checkType = I('get.checkType');
        $catId = I('get.cat_id');
        $this->pagedata['tabs'] = [
            ['name' => '产品列表', 'class' => 'current',],
            $checkType ? false : ['name' => '产品分类', 'url' => U('Goods/cat'),],
            $checkType ? false : ['name' => '产品品牌', 'url' => U('Goods/brand'),],
            $checkType ? false : ['name' => '产品模型', 'url' => U('Channeltype/index', ['type' => 'goods',]),],
        ];
        $search = $_POST['search'] ?? [];
        if ($this->request->isPost() && $catId && (!isset($search['cat_id']) || !$search['cat_id'])) {
            $catId = null;
        }
        $cat = [];
        $catList = [
            '' => '',
        ];
        if (!$this->request->isPost()) {

            if ($catId && is_numeric($catId)) {
                $cat = M('goods_cat')->where('id', $catId)->field('id,name')->find();
                $cat and $search['cat_id'] = $catId;
            }

            $cats = M('goods_cat')->field('id,name,depth,id_path')
                ->order('path asc,id asc')
                ->select()->toArray();
            $cats = tierMenusList($cats);
            foreach ($cats as $item) {
                $name = str_repeat('&nbsp;', ($item['depth'] - 1) * 4) . $item['name'];
                $catList[$item['id']] = $name;
            }
        }

        $this->pagedata['search'] = [
            ['tag' => 'input', 'name' => 'a.name|has|trim', 'placeholder' => '产品名称',],
            ['tag' => 'select', 'name' => 'cat_id', 'placeholder' => '产品分类', 'value' => $cat['id'] ?? '', 'options' => $catList,],