/**
     * [indexAction_white 返回[树状结构]格式化后的树]
     * @return [type] [description]
     */
    public function areaData_white()
    {
        $objs = db($this->table_name)->field('id,parent_id,area_name')->select();
        $arr = $this->__format_priv($objs);
        return json($arr);
    }

    /**
     * [__format_priv 与[树状结构]格式化数据, [递归]]
     * @param  [type] $objs      [description]
     * @param  [type] $parent_id [description]
     * @return [type]            [description]
     */
    private function __format_priv($objs, $parent_id = null)
    {
        $arr = [];
        if ($objs && is_array($objs)) {
            foreach ($objs as $v) {
                if ($v['parent_id'] == $parent_id) {
                    $arr[] = [
                        'id' => $v['id'],
                        'text' => $v['area_name'],
                        'children' => $this->__format_priv($objs, $v['id'])
                    ];
                }
            }
        }
        return $arr;
    }

/**
 * 家谱树(面包屑导航)
 * @param $id
 * @return array
 */
public function getPlist($id)
{
    $arr = collection($this->select())->toArray();
    return $this->_familytree($arr, $id);
}

/**
 * 家谱树
 * @param $arr
 * @param $id
 * @return array
 */
private function _familytree($arr, $id)
{
    $list = array();
    foreach ($arr as $v) {
        if ($v['id'] == $id) {
            $list[] = $v['area_name'];
            $list = array_merge($this->_familytree($arr, $v['parent_id']),$list );
        }
    }
    return $list;
}