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<?php
/*
**********************************************
ExtCalendar v2
Copyright (c) 2003-2005 Mohamed Moujami (Simo)
v1 originally written by Kristof De Jaeger
**********************************************
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.
**********************************************
File Description: event.inc.php - Event class
$Id: event.inc.php,v 1.8 2005/02/12 08:55:21 simoami Exp $
**********************************************
Get the latest version of ExtCalendar at:
http://extcal.sourceforge.net
**********************************************
*/
class Event {
// Set default variables for all new objects
// Info related variables
var $title = "";
var $description = "";
var $contact = "";
var $url = "";
var $link = "";
var $email = "";
var $picture = "";
var $color = "#000000"; // black color by default
var $catName = "";
var $catDesc = "";
// Date related variables
var $startDate = NULL;
var $endDate = NULL;
var $startDay = 0;
var $startMonth = 0;
var $startYear = 0;
var $endDay = 0;
var $endMonth = 0;
var $endYear = 0;
var $recurStartDate = NULL; // virtual start and end dates used for recurrent events
var $recurEndDate = NULL;
// Other info variables
var $id = 0;
var $catId = 0;
var $status = false; // true means approved or active event
var $recType = NULL; // Recurrence type: daily, weekly, monthly, yearly or (null for non recurrent events)
var $recInterval = 0; // Period of recurrence
var $recEndDate = 0; // recurrence limit
var $recEndType = 0; // recurrence end type: 0. repeat indefinitely, 1. repeat a number of occurrences, 2. repeat until date ($recEndDate)
var $recEndCount = NULL; // number of occurrences for a recurrent event. Used in conjunction with $recEndType = 1
function Event() {
// defining the constructor
//global $CONFIG;
//if($eventId) $this->getEvent($eventId);
}
function isActive() {
return $this->$this->status;
}
function loadEvent($eventId) {
// function that retrieves and set event info
global $CONFIG;
$query = "SELECT e.*,cat_name, color, c.description AS cat_desc FROM ".$CONFIG['TABLE_EVENTS']." AS e ";
$query .= "LEFT JOIN ".$CONFIG['TABLE_CATEGORIES']." AS c ON e.cat=c.cat_id WHERE id='".$eventId."'";
$results = db_query($query);
$rows = db_num_rows($results);
if (!$rows) {
return false;
} else
{
$row = db_fetch_array($results);
// additional field processing
// Store info related variables
$this->title = $row['title'];
$this->description = $row['description'];
$this->contact = $row['contact'];
if($row['url'])
$this->url = eregi("/^(http[s]?:\/\/)",$row['url'])?$row['url']:"http://".$row['url'];
else $this->url = "";
$this->link = $this->url;
$this->email = $row['email'];
$this->picture = $row['picture'];
$this->color = $row['color'];
$this->catName = $row['cat_name'];
$this->catDesc = $row['cat_desc'];
// Store date related variables
$this->startDate = strtotime($row['start_date']);
if($row['start_date'] > $row['end_date'])
$this->endDate = $this->startDate;
else
$this->endDate = strtotime($row['end_date']);
$this->startDay = (int)date("d", $this->startDate);
$this->startMonth = (int)date("m", $this->startDate);
$this->startYear = (int)date("Y", $this->startDate);
$this->endDay = (int)date("d", $this->endDate);
$this->endMonth = (int)date("m", $this->endDate);
$this->endYear = (int)date("Y", $this->endDate);
// Store other info variables
$this->id = $eventId;
$this->catId = (int)$row['cat'];
$this->status = $row['approved']?true:false;
$this->recType = $row['recur_type'];
$this->recInterval = (int)$row['recur_val'];
$this->recEndDate = strtotime($row['recur_until']);
//$this->recWeekDays = $row['rec_weekdays'];
$this->recEndType = (int)$row['recur_end_type'];
$this->recEndCount = (int)$row['recur_count'];
}
db_free_result($results);
return true;
}
function getDuration() {
//function datestoduration ($periods = null) {
$periods = null;
$seconds = $this->endDate - $this->startDate;
// Force the seconds to be numeric
$seconds = (int)$seconds;
// Define our periods
if (!is_array($periods)) {
$periods = array (
//'years' => 31556926,
//'months' => 2629743,
//'weeks' => 604800,
'days' => 86400,
'hours' => 3600,
'minutes' => 60,
//'seconds' => 1
);
}
// Loop through
foreach ($periods as $period => $value) {
$count = floor($seconds / $value);
$values[$period] = $count;
if ($count == 0) {
continue;
}
$seconds = $seconds % $value;
}
// Return array
if (empty($values)) {
$values = null;
}
// fix the all day value
if(date("G:i",$this->endDate) == "23:59") {
$values['days']++;
$values['hours'] = 0;
$values['minutes'] = 0;
}
return $values;
}
function isRecurrent() {
return empty($this->recType)?false:true;
}
function setStartDate($start_date) {
$this->startDate = $start_date;
$this->startDay = (int)date("d", $this->startDate);
$this->startMonth = (int)date("m", $this->startDate);
$this->startYear = (int)date("Y", $this->startDate);
}
function setEndDate($end_date) {
$this->endDate = $end_date;
$this->endDay = (int)date("d", $this->endDate);
$this->endMonth = (int)date("m", $this->endDate);
$this->endYear = (int)date("Y", $this->endDate);
}
function isRecurrentOn($target_stamp) {
global $CONFIG;
if(!$this->isRecurrent()) return false;
$day = $this->startDay;
$month = $this->startMonth;
$year = $this->startYear;
$current_stamp = mktime(0,0,0,$month,$day,$year); // reproduce the start date without time info
$duration = mktime(0,0,0,$this->endMonth,$this->endDay,$this->endYear) - mktime(0,0,0,$this->startMonth,$this->startDay,$this->startYear);
if($this->recEndType == 2 && ($this->recEndDate + $duration < $target_stamp)) return false;
$target_day = (int)date("d", $target_stamp);
$target_month = (int)date("m", $target_stamp);
$target_year = (int)date("Y", $target_stamp);
$target_stamp = mktime(0,0,0,$target_month,$target_day,$target_year); // reformat the target date without time info
$recur_count = 1;
while(($this->recEndType != 1 && $current_stamp <= $target_stamp) || ($this->recEndType == 1 && $recur_count <= $this->recEndCount)) {
switch($this->recType) {
case "day":
$current_stamp = mktime(0,0,0,$month,$day+=$this->recInterval,$year);
break;
case "week":
$current_stamp = mktime(0,0,0,$month,$day+=$this->recInterval*7,$year);
break;
case "month":
$current_stamp = mktime(0,0,0,$month+=$this->recInterval,$day,$year);
break;
case "year":
$current_stamp = mktime(0,0,0,$month,$day,$year+=$this->recInterval);
break;
default:
}
$condition_all = $current_stamp <= $target_stamp && ($current_stamp + $duration) >= $target_stamp;
$condition_bounds = ($current_stamp == $target_stamp || ($current_stamp + $duration) == $target_stamp);
$condition_start = $current_stamp == $target_stamp;
if((($condition_all && $CONFIG['multi_day_events']=="all") || ($condition_bounds && $CONFIG['multi_day_events']=="bounds") || ($condition_start && $CONFIG['multi_day_events']=="start")) && ($this->recEndType != 2 || $this->recEndDate >= $current_stamp)) {
$this->recurStartDate = $current_stamp;
$this->recurEndDate = $current_stamp + $duration;
return true;
}
$recur_count++;
}
// no match
return false;
}
function get_icon($day_stamp,$start_stamp,$end_stamp) {
$startbound = date('Ymd',$day_stamp) - date('Ymd',$start_stamp); // 0 means event starts same day
$endbound = date('Ymd',$end_stamp) - date('Ymd',$day_stamp); // 0 means event ends same day
//echo "STR:".date('Ymd',$start_stamp) . " STO:".date('Ymd',$end_stamp). " DAY:".date('Ymd',$day_stamp)."<br>";
$image = "icon-event-onedate.gif"; // default event icon
if(!$startbound && !$endbound) $image = "icon-event-onedate.gif";
elseif(!$startbound && $endbound>0) $image = "icon-event-startdate.gif";
elseif($startbound>0 && !$endbound) $image = "icon-event-enddate.gif";
elseif($startbound>0 && $endbound>0) $image = "icon-event-middate.gif";
//else return false;
return $image;
}
function get_style($day_stamp,$start_stamp,$end_stamp) {
$startbound = date('Ymd',$day_stamp) - date('Ymd',$start_stamp); // 0 means event starts same day
$endbound = date('Ymd',$end_stamp) - date('Ymd',$day_stamp); // 0 means event ends same day
$class = "eventfull"; // default event class
if(!$startbound && !$endbound) $class = "eventfull";
elseif(!$startbound && $endbound>0) $class = "eventstart";
elseif($startbound>0 && !$endbound) $class = "eventend";
elseif($startbound>0 && $endbound>0) $class = "eventmiddle";
//else return false;
return $class;
}
}
?>
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