在日期范围内获取用户生日

Question

我想获得今天之前和之后3天生日的用户列表.我的意思是,如果今天是March 2,2013,我想谁也开始过生日的用户Feb 27,2013高达March 5,2013.这是我的数据库设计.

用户表

id | name | birth_day | birth_month | birth_year

我无法再更改数据库设计,因为我无法访问它,更改设计只会发生在网站上的巨大变化.

这是我目前的代码:

if (empty($date))
            $date = date('Y-m-d'); // now

        $start_date = strtotime($date.' -'.$day_range.' day');
        $end_date = strtotime($date.' +'.$day_range.' day');
        $start_month = date('m', $start_date);
        $end_month = date('m', $end_date);
        $start_day = date('d', $start_date);
        $end_day = date('d', $end_date);

        if ($start_day > $end_day) {
            $tmp = $start_day;
            $start_day = $end_day;
            $end_day = $tmp;
        }

        /* This is a dirty fix for getting birthdays between dates */
        $this->User->contain(array('User' => array('first_name', 'last_name', 'userstatus_id')));
        $user = $this->User->find('all', array(
            'conditions' => array(
                'User.birth_month BETWEEN ? AND ?' => array($start_month, $end_month),
                'User.birth_day BETWEEN ? AND ?' => array($start_day, $end_day),
            ),
            'fields' => array(
                'birth_year',
                'birth_day',
                'birth_month'
            ),
            'order' => array(
                'birth_month' => 'ASC',
                'birth_day' => 'ASC'
            )
        ));

        foreach($user as $k => $v) {
            $temp = strtotime(date('Y-'.$user[$k]['User']['birth_month'].'-'.$user[$k]['User']['birth_day']));

            if ($temp >= $start_date && $temp <= $end_date) {
            }
            else {
                unset($user[$k]);
            }

        }

Answer 1

如果您无法更改表格设计,那么我将从三列创建日期时间,然后将其用于过滤器:

select *
from 
(
  select id, name,
    str_to_date(concat(year(now()), '-', birth_month, '-', birth_day), '%Y-%m-%d') birthdate
  from users
) d
where birthdate >= '2013-02-27'
  and birthdate <= '2013-03-05'

请参阅SQL Fiddle with Demo.

这使用STR_TO_DATE()和CONCAT()函数创建生日日期作为日期数据类型.获得日期后,您就可以应用日期过滤器了.