Recurring Events in FullCalendar
I am using jQuery FullCalendar as my calendar used in my website for availability agenda.
Is there any functions/methods/options in fullcalendar that handles my recu
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At the moment I'm doing project where I have FullCalendar and I have to do Recurring events. So this is my why how it's can be done. Hope this code help someone:)
I have next table in database:
CREATE TABLE IF NOT EXISTS `app_ext_calendar_events` ( `id` int(11) NOT NULL AUTO_INCREMENT, `users_id` int(11) NOT NULL, `name` varchar(255) NOT NULL, `description` text, `start_date` int(11) NOT NULL, `end_date` int(11) NOT NULL, `event_type` varchar(16) NOT NULL, `is_public` tinyint(1) DEFAULT NULL, `bg_color` varchar(16) DEFAULT NULL, `repeat_type` varchar(16) DEFAULT NULL, `repeat_interval` int(11) DEFAULT NULL, `repeat_days` varchar(16) DEFAULT NULL, `repeat_end` int(11) DEFAULT NULL, `repeat_limit` int(11) DEFAULT NULL, PRIMARY KEY (`id`), KEY `idx_users_id` (`users_id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=18 ;and I developed next php class to get events with repeat events:
='" . $date_from . "' and FROM_UNIXTIME(end_date,'%Y-%m-%d')<='" . $date_to . "' and event_type='" . $calendar_type . "' and users_id='" . db_input($app_user['id']) . "'"); while($events = db_fetch_array($events_query)) { $list[] = $events; } if(count($repeat_events_list = calendar::get_repeat_events($date_to,$calendar_type))) { $list = array_merge($list,$repeat_events_list); } return $list; } public static function weeks_dif($start, $end) { $year_start = date('Y',$start); $year_end = date('Y',$end); $week_start = date('W',$start); $week_end = date('W',$end); $dif_years = $year_end - $year_start; $dif_weeks = $week_end - $week_start; if($dif_years==0 and $dif_weeks==0) { return 0; } elseif($dif_years==0 and $dif_weeks>0) { return $dif_weeks; } elseif($dif_years==1) { return (42-$week_start)+$week_end; } elseif($dif_years>1) { return (42-$week_start)+$week_end+(($dif_years-2)*42); } } public static function months_dif($start, $end) { // Assume YYYY-mm-dd - as is common MYSQL format $splitStart = explode('-', date('Y-n',$start)); $splitEnd = explode('-', date('Y-n',$end)); if (is_array($splitStart) && is_array($splitEnd)) { $startYear = $splitStart[0]; $startMonth = $splitStart[1]; $endYear = $splitEnd[0]; $endMonth = $splitEnd[1]; $difYears = $endYear - $startYear; $difMonth = $endMonth - $startMonth; if (0 == $difYears && 0 == $difMonth) { // month and year are same return 0; } else if (0 == $difYears && $difMonth > 0) { // same year, dif months return $difMonth; } else if (1 == $difYears) { $startToEnd = 13 - $startMonth; // months remaining in start year(13 to include final month return ($startToEnd + $endMonth); // above + end month date } else if ($difYears > 1) { $startToEnd = 13 - $startMonth; // months remaining in start year $yearsRemaing = $difYears - 2; // minus the years of the start and the end year $remainingMonths = 12 * $yearsRemaing; // tally up remaining months $totalMonths = $startToEnd + $remainingMonths + $endMonth; // Monthsleft + full years in between + months of last year return $totalMonths; } } else { return false; } } public static function get_repeat_events($date_to,$calendar_type) { global $app_user; //convert date to timestamp $date_to_timestamp = get_date_timestamp($date_to); $list = array(); //get all events that already started (start_date<=date_to) $events_query = db_query("select * from app_ext_calendar_events where length(repeat_type)>0 and FROM_UNIXTIME(start_date,'%Y-%m-%d')<='" . $date_to . "' and event_type='" . $calendar_type . "' and users_id='" . db_input($app_user['id']) . "'"); while($events = db_fetch_array($events_query)) { $start_date = $events['start_date']; //set repeat end $repeat_end = false; if($events['repeat_end']>0) { $repeat_end = $events['repeat_end']; } //get repeat events by type switch($events['repeat_type']) { case 'daily': //check repeat events day bay day for($date = $start_date; $date<=$date_to_timestamp; $date+=86400) { if($date>$start_date) { $dif = round(abs($date-$start_date)/86400); if($dif>0) { $event_obj = $events; $event_obj['start_date'] = strtotime('+' . $dif . ' day',$event_obj['start_date']); $event_obj['end_date'] = strtotime('+' . $dif . ' day',$event_obj['end_date']); if(calendar::check_repeat_event_dif($dif,$event_obj,$repeat_end)) { $list[] = $event_obj; } } } } break; case 'weekly': //check repeat events day bay day for($date = $start_date; $date<=$date_to_timestamp; $date+=86400) { if($date>$start_date) { //find days dif $dif = round(abs($date-$start_date)/86400); //find week dif $week_dif = calendar::weeks_dif($start_date, $date); if($dif>0 and (in_array(date('N',$date),explode(',',$events['repeat_days'])))) { $event_obj = $events; $event_obj['start_date'] = strtotime('+' . $dif . ' day',$event_obj['start_date']); $event_obj['end_date'] = strtotime('+' . $dif . ' day',$event_obj['end_date']); if(calendar::check_repeat_event_dif($week_dif,$event_obj,$repeat_end)) { $list[] = $event_obj; } } } } break; case 'monthly': /** *in calendar we display 3 month in one view *so we have to check difference for each month */ //check 1 $date_to_timestamp2 = strtotime('-2 month',$date_to_timestamp); $dif = calendar::months_dif($start_date, $date_to_timestamp2); if($dif>0) { $event_obj = $events; $event_obj['start_date'] = strtotime('+' . $dif . ' month',$event_obj['start_date']); $event_obj['end_date'] = strtotime('+' . $dif . ' month',$event_obj['end_date']); if(calendar::check_repeat_event_dif($dif,$event_obj,$repeat_end)) { $list[] = $event_obj; } } //check 2 $date_to_timestamp1 = strtotime('-1 month',$date_to_timestamp); $dif = calendar::months_dif($start_date, $date_to_timestamp1); if($dif>0) { $event_obj = $events; $event_obj['start_date'] = strtotime('+' . $dif . ' month',$event_obj['start_date']); $event_obj['end_date'] = strtotime('+' . $dif . ' month',$event_obj['end_date']); if(calendar::check_repeat_event_dif($dif,$event_obj,$repeat_end)) { $list[] = $event_obj; } } //check 3 $dif = calendar::months_dif($start_date, $date_to_timestamp); if($dif>0) { $event_obj = $events; $event_obj['start_date'] = strtotime('+' . $dif . ' month',$event_obj['start_date']); $event_obj['end_date'] = strtotime('+' . $dif . ' month',$event_obj['end_date']); if(calendar::check_repeat_event_dif($dif,$event_obj,$repeat_end)) { $list[] = $event_obj; } } break; case 'yearly': $dif = date('Y',$date_to_timestamp)-date('Y',$start_date); if($dif>0) { $events['start_date'] = strtotime('+' . $dif . ' year',$events['start_date']); $events['end_date'] = strtotime('+' . $dif . ' year',$events['end_date']); if(calendar::check_repeat_event_dif($dif,$events,$repeat_end)) { $list[] = $events; } } break; } } return $list; } static public function check_repeat_event_dif($dif,$events,$repeat_end) { $check = true; if($dif>0) { //check interval if($dif/$events['repeat_interval']!=floor($dif/$events['repeat_interval'])) $check=false; //check repeat limit if($events['repeat_limit']>0) if(floor($dif/$events['repeat_interval'])>$events['repeat_limit']) $check=false; } else { $check=false; } //check repeat end date if($repeat_end>0) { if($repeat_end<$events['start_date']) { $check=false; } } return $check; } }function get_events get all events + recurring events in my way there are 4 type of recurring events: daily, weekly, monthly,yearly + there is repeat interval, repeat date end and repeat limit.
function get_repeat_events calculate difference for each type of event and include repeat event if exist.
note: function db_query() can be replace to myslq_query or something else
to prepare events to FullCalendar I'm using next code
$list = array(); foreach(calendar::get_events($_GET['start'],$_GET['end'],'personal') as $events) { $start = date('Y-m-d H:i',$events['start_date']); $end = date('Y-m-d H:i',$events['end_date']); $list[] = array('id' => $events['id'], 'title' => addslashes($events['name']), 'description' => str_replace(array("\n\r","\n","\r"),'
',$events['description']), 'start' => str_replace(' 00:00','',$start), 'end' => str_replace(' 00:00','',$end), 'color'=> $events['bg_color'], 'allDay'=>(strstr($start,'00:00') and strstr($end,'00:00')), 'url' => url_for('ext/calendar/personal_form','id=' . $events['id']) ); } echo json_encode($list);
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