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带有来自 MySQL 数据库的重复事件的 PHP 日历

转载 作者:IT王子 更新时间:2023-10-29 00:34:18 26 4
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更新:下面是我原来的问题。查看我的答案,看看我是如何解决的。


我正在尝试使用 MySQL 数据库表“churchcal_events”中的事件填充我的日历。我可能有针对特定日期的一次性事件和可以设置为每周一、每隔一个周四或每月第二个周五的重复事件。

一次性事件没问题。每周的事件都有效(每周,每隔一周)。但是每个月的事件仅在第一个月显示,而不是在接下来的几个月显示

churchcal_events 表 - 排除对该问题不重要的字段

+----+----------------+------------+-----------+------------+------------+
| id | name | recurring | frequency | recur_type | recur_day |
+----+----------------+------------+-----------+------------+------------+
| 1 | Test Weekly | 1 | 1 | W | Sunday |
| 2 | Test Bi-Weekly | 1 | 2 | W | Monday |
| 3 | Test Monthly | 1 | 1 | M | Friday |
+----+----------------+------------+-----------+------------+------------+

php 代码 - 每月每一天的循环内

//query all events
$get_events = db_query("SELECT * FROM {churchcal_events}
WHERE (MONTH(date) = :month AND YEAR(date) = :year AND DAY(date) = :day) OR
(recurring = :recur AND recur_day LIKE :calendar_day)
ORDER BY starttime",
array(
':month' => $month,
':year' => $year,
':day' => $list_day,
':recur' => '1',
':calendar_day' => '%' . date('l', strtotime($month . '/' . $list_day . '/' . $year)) . '%',
));

foreach($get_events as $event) {

//see if events belong to this calendar
$calendar_assign = db_query("SELECT * FROM {churchcal_assign} WHERE event_id = :event_id AND calendar_id = :cal_id",
array(
':event_id' => $event->id,
':cal_id' => $cal_id,
));

if($calendar_assign->rowCount() > 0) {

//if recurring, see if event should be on this day
if($event->recurring == '1') {

$recur_day = $event->recur_day;
$recur_freq = $event->frequency;
$recur_type = $event->recur_type;

$recur_start = new DateTime(date('Y-m-d', strtotime($event->recur_start)));
$recur_end = new DateTime(date('Y-m-d', strtotime($event->recur_end)));

$recur_start->modify($recur_day);

$recur_interval = new DateInterval("P{$recur_freq}{$recur_type}");
$recur_period = new DatePeriod($recur_start, $recur_interval, $recur_end);

foreach($recur_period as $recur_date) {

if($recur_date->format('Ymd') == date('Ymd', strtotime($month . '/' . $list_day . '/' . $year))) {

$calendar .= calendar_event($event-id, $event->name, $event->starttime);

}

}

}

如何使示例 Churchcal_events 表中的 ID“3”显示在每个月的第一个星期五?

最佳答案

如果有人想做类似的事情,我将发布我在过去五个小时内编写和测试的代码。

我决定将我的两个表转换为三个,将所有重复选项移至第三个表:

'churchcal_events' - 我没有在此处包含事件信息的其他字段

+----+-----------+------------+------------+------------+-----------+
| id | name | date | starttime | endtime | recurring |
+----+-----------+------------+------------+------------+-----------+
| 1 | Event 1 | 2013-04-01 | 10:30:00 | 12:00:00 | 0 |
| 2 | Event 2 | | 14:00:00 | 15:00:00 | 1 |
| 3 | Event 3 | | 09:00:00 | | 1 |
| 4 | Event 4 | | 19:00:00 | 21:00:00 | 1 |
+----+-----------+------------+------------+------------+-----------+

'churchcal_assign' - 将事件路由到适当的日历(因为整个网站都会有不同部门的日历)

+----------+-------------+
| event_id | calendar_id |
+----------+-------------+
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
+----------+-------------+

'churchcal_recur_events' - 以下是每个事件重复发生的规则

+----------+-----------+------------+----------------+------------+-------------+-----------+
| event_id | frequency | recur_type | recur_day_num | recur_day | recur_start | recur_end |
+----------+-----------+------------+----------------+------------+-------------+-----------+
| 2 | 1 | Week | NULL | Sunday | NULL | NULL |
| 3 | 2 | Week | NULL | Wednesday | 2013-04-01 | NULL |
| 4 | 2 | Month | third | Friday | 2013-04-01 | NULL |
+----------+-----------+------------+----------------+------------+-------------+-----------+

新代码 (PHP) - 这是一天循环中

    //query all events
$get_events = db_query("SELECT * FROM {churchcal_events ce, churchcal_recur_events cre}
WHERE (MONTH(ce.date) = :month AND YEAR(ce.date) = :year AND DAY(ce.date) = :day) OR
(ce.id = cre.event_id AND ce.recurring = :recur AND cre.recur_day = :calendar_day)
ORDER BY starttime",
array(
':month' => $month,
':year' => $year,
':day' => $list_day,
':recur' => '1',
':calendar_day' => date('l', strtotime($month . '/' . $list_day . '/' . $year)),
));



foreach($get_events as $event) {

//see if events belong to this calendar
$calendar_assign = db_query("SELECT * FROM {churchcal_assign} WHERE event_id = :event_id AND calendar_id = :cal_id",
array(
':event_id' => $event->id,
':cal_id' => $cal_id,
));

if($calendar_assign->rowCount() > 0) {

//one-time events
if(($event->recurring != '1') && ($single_event_id != $event->id)) {
$calendar .= calendar_event($event->id, $event->name, $event->starttime);
$single_event_id = $event->id;
//$calendar .= $single_event_id;
}

//monthly recurring events
if(($event->recur_type == 'Month') && ($event->recurring == '1')
//day is on or before end date
&& (($event->recur_end >= date('Y-m-d', strtotime($month . '/' . $list_day . '/' . $year))) || ($event->recur_end == '0000-00-00') || ($event->recur_end == NULL))
//day is on or after start date
&& (($event->recur_start <= date('Y-m-d', strtotime($month . '/' . $list_day . '/' . $year))) || ($event->recur_start == '0000-00-00') || ($event->recur_start == NULL))
//day is equal to date of recurrence, i.e. first friday, third monday, etc
&& ($year . date('m', strtotime($year . '/' . $month . '/' . $list_day)) . $list_day == date('Ymj', strtotime($event->recur_day_num . ' ' . $event->recur_day . ' of ' . date('F', strtotime($month . '/' . $list_day . '/' . $year)) . ' ' . $year)))
//day is in agreement with month frequency, i.e. every month, every other, etc. from start date
&& ($month % $event->frequency == date('m', strtotime($event->recur_start)) % $event->frequency)) {
$calendar .= calendar_event($event->id, $event->name, $event->starttime);
}


//weekly recurring events
if(($event->recur_type == 'Week') && ($event->recurring == '1')
//day is on or before end date
&& (($event->recur_end >= date('Y-m-d', strtotime($month . '/' . $list_day . '/' . $year))) || ($event->recur_end == '0000-00-00') || ($event->recur_end == NULL))
//day is on or after start date
&& (($event->recur_start <= date('Y-m-d', strtotime($month . '/' . $list_day . '/' . $year))) || ($event->recur_start == '0000-00-00') || ($event->recur_start == NULL))
//day is in agreement with week frequency, i.e. every week, every other, etc. from start date
&& (date('W', strtotime($month . '/' . $list_day . '/' . $year)) % $event->frequency == date('W', strtotime($event->recur_start)) % $event->frequency)) {

$calendar .= calendar_event($event->id, $event->name, $event->starttime);

}

}

}

如果你不像我这样在 Drupal 模块中创建它,你可以用你自己的数据库查询函数替换 'db_query()',比如 PHP 的默认 'mysql_query()';

关于带有来自 MySQL 数据库的重复事件的 PHP 日历,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15753827/

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