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PHP-Kalender mit wiederkehrenden Ereignissen aus der MySQL-Datenbank

Falls jemand etwas Ähnliches machen möchte, werde ich den Code posten, den ich in den letzten fünf Stunden geschrieben und getestet habe.

Ich beschloss, meine zwei Tabellen in drei umzuwandeln und alle wiederkehrenden Optionen in die dritte Tabelle zu verschieben:

'churchcal_events' - Es gibt zusätzliche Felder für Veranstaltungsinformationen, die ich hier nicht eingefügt habe

+----+-----------+------------+------------+------------+-----------+
| 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' - leitet Ereignisse an entsprechende Kalender weiter (da es auf der gesamten Website Kalender für verschiedene Abteilungen geben wird)

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

'churchcal_recur_events' - Hier sind die Regeln für die Wiederholung jedes Ereignisses

+----------+-----------+------------+----------------+------------+-------------+-----------+
| 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      |
+----------+-----------+------------+----------------+------------+-------------+-----------+

Neuer Code (PHP) - Dies ist in einer Tagesschleife

    //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);

          }

      }

    }

Wenn Sie dies nicht wie ich in einem Drupal-Modul erstellen, können Sie „db_query()“ durch Ihre eigene Datenbankabfragefunktion ersetzen, wie z. B. PHPs Standard „mysql_query()“;