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<?php
namespace app\api\model;
use think\Model;

class ModGoodsAct extends Model
{
    protected $name = 'goods_act';//表名

    /**
     * 获取该分类下所有子分类
     * @param $parent_id 分类id
     * @param $type 类型：1包含当前id、0不包含
     */
    static function sublevel_act_id($parent_id,$type=0)
    {
        $act_id = '';
        if ($type == 1){
            $act_id = $parent_id.',';
        }
        while ($parent_id){
            $list = ModGoodsAct::where("parent_id in ($parent_id) and is_show = 1")->order("sort desc")->field("id,name")->select();
            $id = '';
            foreach ($list as $k => $v){
                $id .= $v["id"].',';
            }
            $id = substr($id,0,strlen($id)-1);
            if (!empty($id)){
                $act_id .= $id.',';
            }
            $parent_id = $id;
        }
        return substr($act_id,0,strlen($act_id)-1);
    }
}