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  • Laravel框架实现无限极分类

    表结构如下:

    CREATE TABLE `goods_category` (
      `id` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键id',
      `name` varchar(500) DEFAULT '' COMMENT '分类名称',
      `pid` int(5) unsigned DEFAULT '0' COMMENT '父级id',
      `level` tinyint(3) unsigned DEFAULT '1' COMMENT '分类等级',
      `status` tinyint(3) unsigned DEFAULT '0' COMMENT '分类状态:0-禁用,1-正常',
      `created_at` timestamp NULL DEFAULT NULL COMMENT '创建时间',
      `updated_at` timestamp NULL DEFAULT NULL COMMENT '更新时间',
      PRIMARY KEY (`id`) USING BTREE,
      KEY `status` (`status`)) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='商品分类表';

    添加数据

    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('1', '版本套餐', '0', '1', '1', NULL, NULL);
    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('2', '图书', '0', '1', '1', NULL, NULL);
    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('3', '组合会员', '1', '1', '1', NULL, NULL);
    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('4', '考证会员', '3', '2', '1', NULL, NULL);
    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('5', '初级会员', '3', '1', '1', NULL, NULL);
    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('6', '经管类', '2', '2', '1', NULL, NULL);
    INSERT INTO `recruit_dev`.`goods_category` (`id`, `name`, `pid`, `level`, `status`, `created_at`, `updated_at`) VALUES ('7', '经济类', '2', '1', '0', NULL, NULL);

    业务代码:

    //模型
    public function children() {
        return $this->hasMany(get_class($this), 'pid' ,'id');
    }
    
    public function allChildren() {
        return $this->children()->with( 'allChildren' )->where('status',1)->orderBy('level','asc');
    }
    //控制器
    $list = GoodsCategory::with('allChildren')->where('pid',0)->where('status',1)->orderBy('level','asc')->get();
    dd($list->toArray());

    打印

     laravel框架无限极分类实现完毕,相比递归和引用实现无限极分类的两种方式,是不是简单高效很多呢

    参考:https://mp.weixin.qq.com/s/HUuIJ4oEaxtT_wgXmojTaQ

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  • 原文地址:https://www.cnblogs.com/clubs/p/13388059.html
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