午夜后的mysql开放时间

Question

我正在建立一个api，其中有午夜后开放的酒吧的清单。 我在查明它们当前是打开还是关闭时遇到了问题。

举例来说，这些酒吧之一的营业时间如下：

Monday 
open time = 20:00
closed time = 05:00

Tuesday 
open time = 20:00
closed time = 04:00

如果我想知道某个酒吧当前是否处于打开状态，并且当前时间为04:00（星期一在星期二），这将导致当前酒吧关闭，因为它的星期二和关闭时间= 04:00

但是实际结果应该是，酒吧开放至05:00（星期一至星期二）

我有20多个酒吧的清单，我需要知道它们是当前打开还是关闭。 可以在mysql或php中完成吗？ 我应该如何设置数据库表？

我将其作为当前设置

表名称：openhours字段：

 id          int(11)
 bar_id      int(11)
 open_time   time
 close_time  time
 day         tinyint(1)

表记录：

 id: 1
 bar_id: 1
 open_time: 20:00:00
 closed_time: 05:00:00
 day: 0

 id: 2
 bar_id: 1
 open_time: 20:00:00
 closed_time: 04:00:00
 day: 1

此查询适用于不超过午夜的开放日

SELECT `open_time`, `closed_time`, IF(CURTIME() BETWEEN `open_time` 
AND `closed_time`,'open','closed') AS `status` FROM `openhours` 
WHERE `day` = DATE_FORMAT(NOW(), '%w')

但是我该如何处理过去的午夜问题？

它尝试了这样的事情，但不是很正确

  SELECT open_time, close_time, day, (CASE WHEN ((open_time <= close_time 
  AND open_time <= CURTIME() AND close_time >= CURTIME()) OR (open_time >= close_time 
  AND (CURTIME() <= close_time OR CURTIME() >= open_time))) THEN 'open' ELSE 'closed' 
  END) AS status FROM openhours WHERE bar_id = 2 and CASE WHEN (day = WEEKDAY(NOW())    
  AND (CURTIME() < open_time)) THEN CASE WHEN (day = (WEEKDAY(NOW()) - 1) 
  AND (CURTIME() < close_time)) THEN day = (WEEKDAY(NOW()) - 1) 
  ELSE day = WEEKDAY(NOW()) END ELSE day = WEEKDAY(NOW()) END

提前致谢！

Answer 1

您可以将UNIX_TIMESTAMP（）用于此类问题：

SELECT `open_time`, `closed_time`, IF(UNIX_TIMESTAMP(CURTIME()) BETWEEN UNIX_TIMESTAMP(`open_time`) AND UNIX_TIMESTAMP(`closed_time`),'open','closed') AS `status` FROM `openhours` WHERE `day` = DATE_FORMAT(NOW(), '%w')

希望我明白你的意思:)

Answer 2

你想要这样的东西

case closed < open
 not between open and closed
else 
 between open and closed 

当任一返回true时，指示条打开

Answer 3

一种选择是将星期几后的秒数存储起来，这样就完全不必担心午夜了。

将它们添加到表中：

open_time_i   int(11)
closed_time_i int(11)

并使您的数据如下所示：

id: 1
bar_id: 1
open_time: 20:00:00
open_time_i: 72000
closed_time: 05:00:00
closed_time_i: 104400
day: 0

id: 2
bar_id: 1
open_time: 20:00:00
open_time_i: 158400
closed_time: 04:00:00
closed_time_i: 187200
day: 1

然后您的查找可能类似于：

$seconds = time() - strtotime('this week last sunday', date("Y-m-d", time()))

SELECT `open_time`, `closed_time`, IF(
  $seconds BETWEEN `open_time_i` AND `closed_time_i`
    OR
  (("closed_time_i" >= 604800 AND $seconds BETWEEN 0 AND ("closed_time_i" - 604800)))
,'open','closed') AS `status` FROM `openhours`

语句之间的第二个语句检查栏是否在该周更改之后打开。