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egroupware/calendar/inc/class.bocalendar.inc.php

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<?php
/**************************************************************************\
* phpGroupWare - Calendar *
* http://www.phpgroupware.org *
* Based on Webcalendar by Craig Knudsen <cknudsen@radix.net> *
* http://www.radix.net/~cknudsen *
* Modified by Mark Peters <skeeter@phpgroupware.org> *
* -------------------------------------------- *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
class bocalendar
{
var $public_functions = Array(
'read_entries' => True,
'read_entry' => True,
'add_entry' => True,
'delete_entry' => True,
'update_entry' => True
);
var $debug = False;
var $so;
var $cached_events;
var $repeating_events;
var $datetime;
var $day;
var $month;
var $year;
var $prefs;
var $owner;
var $holiday_color;
var $printer_friendly = False;
var $cached_holidays;
var $filter;
var $cat_id;
var $users_timeformat;
var $use_session = False;
function bocalendar($session=0)
{
// if(floor(phpversion()) == 4)
// {
global $phpgw, $phpgw_info, $date, $year, $month, $day, $owner, $filter, $fcat_id, $friendly;
// }
$phpgw->nextmatchs = CreateObject('phpgwapi.nextmatchs');
$this->grants = $phpgw->acl->get_grants('calendar');
if($this->debug) { echo "Read Use_Session : (".$session.")<br>\n"; }
if($session)
{
$this->read_sessiondata();
$this->use_session = True;
}
if($this->debug) { echo "BO Filter : (".$this->filter.")<br>\n"; }
if(isset($owner))
{
$this->owner = $owner;
}
elseif(!$this->owner)
{
$this->owner = $phpgw_info['user']['account_id'];
}
$this->prefs['common'] = $phpgw_info['user']['preferences']['common'];
$this->prefs['calendar'] = $phpgw_info['user']['preferences']['calendar'];
if ($this->prefs['common']['timeformat'] == '12')
{
$this->users_timeformat = 'h:i a';
}
else
{
$this->users_timeformat = 'H:i';
}
$this->holiday_color = (substr($phpgw_info['theme']['bg07'],0,1)=='#'?'':'#').$phpgw_info['theme']['bg07'];
if($friendly == 1)
{
$this->printer_friendly = True;
}
if(isset($filter)) { $this->filter = $filter; }
if(isset($cat_id)) { $this->cat_id = $cat_id; }
if(!isset($this->filter))
{
$this->filter = ' '.$this->prefs['calendar']['defaultfilter'].' ';
}
if(isset($date))
{
$this->year = intval(substr($date,0,4));
$this->month = intval(substr($date,4,2));
$this->day = intval(substr($date,6,2));
}
else
{
if(isset($year))
{
$this->year = $year;
}
elseif($this->year == 0)
{
$this->year = date('Y',time());
}
if(isset($month))
{
$this->month = $month;
}
elseif($this->month == 0)
{
$this->month = date('m',time());
}
if(isset($day))
{
$this->day = $day;
}
elseif($this->day == 0)
{
$this->day = date('d',time());
}
}
$this->so = CreateObject('calendar.socalendar',$this->owner,$this->filter,$this->cat_id);
$this->datetime = $this->so->datetime;
if($this->debug) { echo "BO Filter : (".$this->filter.")<br>\n"; }
}
function save_sessiondata($data)
{
if ($this->use_session)
{
global $phpgw;
if($this->debug) { echo '<br>Save:'; _debug_array($data); }
$phpgw->session->appsession('session_data','calendar',$data);
}
}
function read_sessiondata()
{
global $phpgw;
$data = $phpgw->session->appsession('session_data','calendar');
if($this->debug) { echo '<br>Read:'; _debug_array($data); }
$this->filter = $data['filter'];
$this->cat_id = $data['cat_id'];
$this->owner = $data['owner'];
$this->year = $data['year'];
$this->month = $data['month'];
$this->day = $data['day'];
}
function read_entry($id)
{
if($this->check_perms(PHPGW_ACL_READ))
{
return $this->so->read_entry($id);
}
}
function add_entry($event)
{
if($this->check_perms(PHPGW_ACL_ADD))
{
$this->so->add_entry($event);
}
}
function update_entry($event)
{
if($this->check_perms(PHPGW_ACL_EDIT))
{
$this->so->add_entry($event);
}
}
function delete_entry($id)
{
if($this->check_perms(PHPGW_ACL_DELETE))
{
$this->so->delete_entry($id);
}
}
function expunge()
{
if($this->check_perms(PHPGW_ACL_DELETE))
{
$this->so->expunge();
}
}
/* Private functions */
function read_holidays()
{
$holiday = CreateObject('calendar.boholiday',$this->year,$this->owner);
$this->cached_holidays = $holiday->read_holiday();
unset($holiday);
}
function can_user_edit($event)
{
$can_edit = False;
if(($event->owner == $this->owner) && ($this->check_perms(PHPGW_ACL_EDIT) == True))
{
if($event->public != True)
{
if($this->check_perms(PHPGW_ACL_PRIVATE) == True)
{
$can_edit = True;
}
}
else
{
$can_edit = True;
}
}
return $can_edit;
}
function fix_update_time(&$time_param)
{
global $phpgw_info;
if ($this->prefs['common']['timeformat'] == '12')
{
if ($time_param[ampm] == 'pm')
{
if ($time_param[hour] <> 12)
{
$time_param[hour] += 12;
}
}
elseif ($time_param[ampm] == 'am')
{
if ($time_param[hour] == 12)
{
$time_param[hour] -= 12;
}
}
if($time_param[hour] > 24)
{
$time_param[hour] -= 12;
}
}
}
function validate_update($event)
{
$error = 0;
// do a little form verifying
if ($event->title == '')
{
$error = 40;
}
elseif (($this->datetime->time_valid($event->start->hour,$event->start->min,0) == False) || ($this->datetime->time_valid($event->end->hour,$event->end->min,0) == False))
{
$error = 41;
}
elseif (($this->datetime->date_valid($event->start->year,$event->start->month,$event->start->mday) == False) || ($this->datetime->date_valid($event->end->year,$event->end->month,$event->end->mday) == False) || ($this->datetime->date_compare($event->start->year,$event->start->month,$event->start->mday,$event->end->year,$event->end->month,$event->end->mday) == 1))
{
$error = 42;
}
elseif ($this->datetime->date_compare($event->start->year,$event->start->month,$event->start->mday,$event->end->year,$event->end->month,$event->end->mday) == 0)
{
if ($this->datetime->time_compare($event->start->hour,$event->start->min,0,$event->end->hour,$event->end->min,0) == 1)
{
$error = 42;
}
}
return $error;
}
function overlap($starttime,$endtime,$participants,$owner=0,$id=0)
{
global $phpgw, $phpgw_info;
$retval = Array();
$ok = False;
if($starttime == $endtime && $phpgw->common->show_date($starttime,'Hi') == 0)
{
$endtime = mktime(23,59,59,$phpgw->common->show_date($starttime,'m'),$phpgw->common->show_date($starttime,'d') + 1,$phpgw->common->show_date($starttime,'Y')) - $this->datetime->tz_offset;
}
$sql = 'AND ((('.$starttime.' <= phpgw_cal.datetime) AND ('.$endtime.' >= phpgw_cal.datetime) AND ('.$endtime.' <= phpgw_cal.edatetime)) '
. 'OR (('.$starttime.' >= phpgw_cal.datetime) AND ('.$starttime.' < phpgw_cal.edatetime) AND ('.$endtime.' >= phpgw_cal.edatetime)) '
. 'OR (('.$starttime.' <= phpgw_cal.datetime) AND ('.$endtime.' >= phpgw_cal.edatetime)) '
. 'OR (('.$starttime.' >= phpgw_cal.datetime) AND ('.$endtime.' <= phpgw_cal.edatetime))) ';
if(count($participants) > 0)
{
$p_g = '';
if(count($participants))
{
$users = Array();
while(list($user,$status) = each($participants))
{
$users[] = $user;
}
if($users)
{
$p_g .= 'phpgw_cal_user.cal_login in ('.implode(',',$users).')';
}
}
if($p_g)
{
$sql .= ' AND (' . $p_g . ')';
}
}
if($id)
{
$sql .= ' AND phpgw_cal.cal_id <> '.$id;
}
$sql .= ' ORDER BY phpgw_cal.datetime ASC, phpgw_cal.edatetime ASC, phpgw_cal.priority ASC';
$events = $this->so->get_event_ids(False,$sql);
if($events == False)
{
return false;
}
$db2 = $phpgw->db;
for($i=0;$i<count($events);$i++)
{
$db2->query('SELECT recur_type FROM phpgw_cal_repeats WHERE cal_id='.$events[$i],__LINE__,__FILE__);
if($db2->num_rows() == 0)
{
$retval[] = $events[$i];
$ok = True;
}
else
{
$db2->next_record();
if($db2->f('recur_type') <> MCAL_RECUR_MONTHLY_MDAY)
{
$retval[] = $events[$i];
$ok = True;
}
}
}
if($ok == True)
{
return $retval;
}
else
{
return False;
}
}
function check_perms($needed,$user=0)
{
if($user == 0)
{
return ($this->grants[$this->owner] & $needed);
}
else
{
return ($this->grants[$user] & $needed);
}
}
function display_status($user_status)
{
global $phpgw_info;
if(isset($this->prefs['calendar']['display_status']) && $this->prefs['calendar']['display_status'] == True)
{
return ' ('.$user_status.')';
}
else
{
return '';
}
}
function get_long_status($status_short)
{
switch ($status_short)
{
case 'A':
$status = lang('Accepted');
break;
case 'R':
$status = lang('Rejected');
break;
case 'T':
$status = lang('Tentative');
break;
case 'U':
$status = lang('No Response');
break;
}
return $status;
}
function is_private($event,$owner,$field='')
{
global $phpgw, $phpgw_info;
if($owner == 0) { $owner = $this->owner; }
if ($owner == $phpgw_info['user']['account_id'] || $this->check_perms(PHPGW_ACL_PRIVATE,$owner) || ($event->public == 1))
{
$is_private = False;
}
elseif($event->public == 0)
{
$is_private = True;
}
elseif($event->public == 2)
{
$is_private = True;
$groups = $phpgw->accounts->memberships($owner);
while ($group = each($groups))
{
if (strpos(' '.implode($event->groups,',').' ',$group[1]['account_id']))
{
$is_private = False;
}
}
}
else
{
$is_private = False;
}
return $is_private;
}
function get_short_field($event,$is_private=True,$field='')
{
if ($is_private)
{
$str = 'private';
}
elseif (strlen($event->$field) > 19)
{
$str = substr($event->$field, 0 , 19) . '...';
}
else
{
$str = $event->$field;
}
return $str;
}
function normalizeminutes(&$minutes)
{
$hour = 0;
$min = intval($minutes);
if($min >= 60)
{
$hour += $min / 60;
$min %= 60;
}
settype($minutes,'integer');
$minutes = $min;
return $hour;
}
function splittime($time,$follow_24_rule=True)
{
global $phpgw_info;
$temp = array('hour','minute','second','ampm');
$time = strrev($time);
$second = intval(strrev(substr($time,0,2)));
$minute = intval(strrev(substr($time,2,2)));
$hour = intval(strrev(substr($time,4)));
$hour += $this->normalizeminutes(&$minute);
$temp['second'] = $second;
$temp['minute'] = $minute;
$temp['hour'] = $hour;
$temp['ampm'] = ' ';
if($follow_24_rule == True)
{
if ($this->prefs['common']['timeformat'] == '24')
{
return $temp;
}
$temp['ampm'] = 'am';
if ((int)$temp['hour'] > 12)
{
$temp['hour'] = (int)((int)$temp['hour'] - 12);
$temp['ampm'] = 'pm';
}
elseif ((int)$temp['hour'] == 12)
{
$temp['ampm'] = 'pm';
}
}
return $temp;
}
function build_time_for_display($fixed_time)
{
global $phpgw_info;
$time = $this->splittime($fixed_time);
$str = '';
$str .= $time['hour'].':'.((int)$time['minute']<=9?'0':'').$time['minute'];
if ($this->prefs['common']['timeformat'] == '12')
{
$str .= ' ' . $time['ampm'];
}
return $str;
}
function sort_event($event,$date)
{
$inserted = False;
if($this->cached_events[$date])
{
for($i=0;$i<count($this->cached_events[$date]);$i++)
{
$events = $this->cached_events[$date][$i];
$events_id = $events->id;
$event_id = $event->id;
if($events->id == $event->id)
{
$inserted = True;
break;
}
$year = substr($date,0,4);
$month = substr($date,4,2);
$day = substr($date,6,2);
if(date('Hi',mktime($event->start->hour,$event->start->min,$event->start->sec,$month,$day,$year)) < date('Hi',mktime($events->start->hour,$events->start->min,$events->start->sec,$month,$day,$year)))
{
for($j=count($this->cached_events[$date]);$j>=$i;$j--)
{
$this->cached_events[$date][$j + 1] = $this->cached_events[$date][$j];
}
$inserted = True;
$this->cached_events[$date][$j] = $event;
break;
}
}
}
if(!$inserted)
{
$this->cached_events[$date][] = $event;
}
}
function check_repeating_events($datetime)
{
global $phpgw, $phpgw_info;
@reset($this->repeating_events);
$search_date_full = date('Ymd',$datetime);
$search_date_year = date('Y',$datetime);
$search_date_month = date('m',$datetime);
$search_date_day = date('d',$datetime);
$search_date_dow = date('w',$datetime);
$search_beg_day = mktime(0,0,0,$search_date_month,$search_date_day,$search_date_year);
$repeated = $this->repeating_events;
$r_events = count($repeated);
for ($i=0;$i<$r_events;$i++)
{
$rep_events = $this->repeating_events[$i];
$id = $rep_events->id;
$event_beg_day = mktime(0,0,0,$rep_events->start->month,$rep_events->start->mday,$rep_events->start->year);
if($rep_events->recur_enddate->month != 0 && $rep_events->recur_enddate->mday != 0 && $rep_events->recur_enddate->year != 0)
{
$event_recur_time = mktime($rep_events->recur_enddate->hour,$rep_events->recur_enddate->min,$rep_events->recur_enddate->sec,$rep_events->recur_enddate->month,$rep_events->recur_enddate->mday,$rep_events->recur_enddate->year);
}
else
{
$event_recur_time = mktime(0,0,0,1,1,2030);
}
$end_recur_date = date('Ymd',$event_recur_time);
$full_event_date = date('Ymd',$event_beg_day);
// only repeat after the beginning, and if there is an rpt_end before the end date
if (($search_date_full > $end_recur_date) || ($search_date_full < $full_event_date))
{
continue;
}
if ($search_date_full == $full_event_date)
{
$this->sort_event($rep_events,$search_date_full);
continue;
}
else
{
$freq = $rep_events->recur_interval;
$type = $rep_events->recur_type;
switch($type)
{
case MCAL_RECUR_DAILY:
if (floor(($search_beg_day - $event_beg_day)/86400) % $freq)
{
continue;
}
else
{
$this->sort_event($rep_events,$search_date_full);
}
break;
case MCAL_RECUR_WEEKLY:
if (floor(($search_beg_day - $event_beg_day)/604800) % $freq)
{
continue;
}
$check = 0;
switch($search_date_dow)
{
case 0:
$check = MCAL_M_SUNDAY;
break;
case 1:
$check = MCAL_M_MONDAY;
break;
case 2:
$check = MCAL_M_TUESDAY;
break;
case 3:
$check = MCAL_M_WEDNESDAY;
break;
case 4:
$check = MCAL_M_THURSDAY;
break;
case 5:
$check = MCAL_M_FRIDAY;
break;
case 6:
$check = MCAL_M_SATURDAY;
break;
}
if ($rep_events->recur_data & $check)
{
$this->sort_event($rep_events,$search_date_full);
}
break;
case MCAL_RECUR_MONTHLY_WDAY:
if ((($search_date_year - $rep_events->start->year) * 12 + $search_date_month - $rep_events->start->month) % $freq)
{
continue;
}
if (($this->datetime->day_of_week($rep_events->start->year,$rep_events->start->month,$rep_events->start->mday) == $this->datetime->day_of_week($search_date_year,$search_date_month,$search_date_day)) &&
(ceil($rep_events->start->mday/7) == ceil($search_date_day/7)))
{
$this->sort_event($rep_events,$search_date_full);
}
break;
case MCAL_RECUR_MONTHLY_MDAY:
if ((($search_date_year - $rep_events->start->year) * 12 + $search_date_month - $rep_events->start->month) % $freq)
{
continue;
}
if ($search_date_day == $rep_events->start->mday)
{
$this->sort_event($rep_events,$search_date_full);
}
break;
case MCAL_RECUR_YEARLY:
if (($search_date_year - $rep_events->start->year) % $freq)
{
continue;
}
if (date('dm',$datetime) == date('dm',$event_beg_day))
{
$this->sort_event($rep_events,$search_date_full);
}
break;
}
}
} // end for loop
} // end function
function store_to_cache($syear,$smonth,$sday,$eyear=0,$emonth=0,$eday=0)
{
global $phpgw, $phpgw_info;
echo "Start Date : ".sprintf("%04d%02d%02d",$syear,$smonth,$sday)."<br>\n";
if(!$eyear && !$emonth && !$eday)
{
$edate = mktime(23,59,59,$smonth + 1,$sday + 1,$syear);
$eyear = date('Y',$edate);
$emonth = date('m',$edate);
$eday = date('d',$edate);
}
else
{
if(!$eyear)
{
$eyear = $syear;
}
if(!$emonth)
{
$emonth = $smonth + 1;
}
if(!$eday)
{
$eday = $sday + 1;
}
$edate = mktime(23,59,59,$emonth,$eday,$eyear);
}
$cached_event_ids = $this->so->list_events($syear,$smonth,$sday,$eyear,$emonth,$eday);
$cached_event_ids_repeating = $this->so->list_repeated_events($syear,$smonth,$sday,$eyear,$emonth,$eday);
$c_cached_ids = count($cached_event_ids);
$c_cached_ids_repeating = count($cached_event_ids_repeating);
$this->cached_events = Array();
if($c_cached_ids == 0 && $c_cached_ids_repeating == 0)
{
return;
}
$this->cached_events = Array();
if($c_cached_ids)
{
for($i=0;$i<$c_cached_ids;$i++)
{
$event = $this->so->read_entry($cached_event_ids[$i]);
$starttime = mktime($event->start->hour,$event->start->min,$event->start->sec,$event->start->month,$event->start->mday,$event->start->year);
$endtime = mktime($event->end->hour,$event->end->min,$event->end->sec,$event->end->month,$event->end->mday,$event->end->year);
$this->cached_events[date('Ymd',$starttime)][] = $event;
if($this->cached_events[date('Ymd',$endtime)][count($this->cached_events[date('Ymd',$starttime)]) - 1] != $event)
{
$this->cached_events[date('Ymd',$endtime)][] = $event;
}
}
}
$this->repeating_events = Array();
if($c_cached_ids_repeating)
{
for($i=0;$i<$c_cached_ids_repeating;$i++)
{
$this->repeating_events[$i] = $this->so->read_entry($cached_event_ids_repeating[$i]);
}
$edate -= $this->datetime->tz_offset;
for($date=mktime(0,0,0,$smonth,$sday,$syear) - $this->datetime->tz_offset;$date<$edate;$date += (60 * 60 * 24))
{
$this->check_repeating_events($date);
}
}
}
/* Begin Appsession Data */
function store_to_appsession($event)
{
global $phpgw;
$phpgw->session->appsession('entry','calendar',$event);
}
function restore_from_appsession()
{
global $phpgw;
$this->event_init();
$event = unserialize(str_replace('O:8:"stdClass"','O:13:"calendar_time"',serialize($phpgw->session->appsession('entry','calendar'))));
$this->so->cal->event = $event;
return $event;
}
/* End Appsession Data */
/* Begin of SO functions */
function get_cached_event()
{
return $this->so->get_cached_event();
}
function add_attribute($var,$value)
{
$this->so->add_attribute($var,$value);
}
function event_init()
{
$this->so->event_init();
}
function set_start($year,$month,$day=0,$hour=0,$min=0,$sec=0)
{
$this->so->set_start($year,$month,$day,$hour,$min,$sec);
}
function set_end($year,$month,$day=0,$hour=0,$min=0,$sec=0)
{
$this->so->set_end($year,$month,$day,$hour,$min,$sec);
}
function set_title($title='')
{
$this->so->set_title($title);
}
function set_description($description='')
{
$this->so->set_description($description);
}
function set_class($class)
{
$this->so->set_class($class);
}
function set_category($category='')
{
$this->so->set_category($category);
}
function set_alarm($alarm)
{
$this->so->set_alarm($alarm);
}
function set_recur_none()
{
$this->so->set_recur_none();
}
function set_recur_daily($year,$month,$day,$interval)
{
$this->so->set_recur_daily($year,$month,$day,$interval);
}
function set_recur_weekly($year,$month,$day,$interval,$weekdays)
{
$this->so->set_recur_weekly($year,$month,$day,$interval,$weekdays);
}
function set_recur_monthly_mday($year,$month,$day,$interval)
{
$this->so->set_recur_monthly_mday($year,$month,$day,$interval);
}
function set_recur_monthly_wday($year,$month,$day,$interval)
{
$this->so->set_recur_monthly_wday($year,$month,$day,$interval);
}
function set_recur_yearly($year,$month,$day,$interval)
{
$this->so->set_recur_yearly($year,$month,$day,$interval);
}
/* End of SO functions */
function set_week_array($startdate,$cellcolor,$weekly)
{
global $phpgw, $phpgw_info;
$today = date('Ymd',time());
for ($j=0;$j<7;$j++)
{
$date = $this->datetime->gmtdate($startdate + ($j * 86400));
$holidays = $this->cached_holidays[$date['full']];
if($weekly)
{
$cellcolor = $phpgw->nextmatchs->alternate_row_color($cellcolor);
}
$day_image = '';
if($holidays)
{
$extra = ' bgcolor="'.$this->holiday_color.'"';
$class = 'minicalhol';
if ($date['full'] == $today)
{
$day_image = ' background="'.$phpgw->common->image('calendar','mini_day_block.gif').'"';
}
}
elseif ($date['full'] != $today)
{
$extra = ' bgcolor="'.$cellcolor.'"';
$class = 'minicalendar';
}
else
{
$extra = ' bgcolor="'.$phpgw_info['theme']['cal_today'].'"';
$class = 'minicalendar';
$day_image = ' background="'.$phpgw->common->image('calendar','mini_day_block.gif').'"';
}
if($this->printer_friendly && @$this->prefs['calendar']['print_black_white'])
{
$extra = '';
}
$new_event = False;
if(!$this->printer_friendly && $this->check_perms(PHPGW_ACL_ADD))
{
$new_event = True;
}
$holiday_name = Array();
if($holidays)
{
for($k=0;$k<count($holidays);$k++)
{
$holiday_name[] = $holidays[$k]['name'];
}
}
$rep_events = $this->cached_events[$date['full']];
$appts = False;
if($rep_events)
{
$appts = True;
}
$week = '';
if (!$j || ($j && substr($date['full'],6,2) == '01'))
{
$week = 'week ' .(int)((date('z',($startdate+(24*3600*4)))+7)/7);
}
$daily[$date['full']] = Array(
'extra' => $extra,
'new_event' => $new_event,
'holidays' => $holiday_name,
'appts' => $appts,
'week' => $week,
'day_image' => $day_image,
'class' => $class
);
}
// $this->_debug_array($daily);
return $daily;
}
function _debug_array($data)
{
echo '<br>UI:';
_debug_array($data);
}
}
?>
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