Extension:Calendar (Shane)

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The Calendar extension extension creates a calendar of the month and year in any MediaWiki page.

Contents

[edit] Install

Create a file called 'calendar_extension.php' in your extensions/ directory, and add the following code...

Works on Mediawiki 1.5.x and 1.6.x.

[edit] Code

<?php
# Calendar Extension
# Creates a calendar of the month and year.
#
# Example Code
#
# <calendar>05 2006</calendar>
#
 
$wgExtensionFunctions[] = "wfCalendarExtension";
$wgExtensionCredits['parserhook'][] = array(
        'name' => 'Calendar',
        'author' => 'Shane',
        'description' => 'adds <nowiki><calender></nowiki> tag, for calender creation',
        'url' => 'http://meta.wikimedia.org/wiki/Calendar_extension'
);
 
/* DO NOT EDIT BEYOND THIS LINE */
 
function wfCalendarExtension() {
    global $wgParser;    
    $wgParser->setHook( "calendar", "createmwCalendar" );
}
 
# The callback function for converting the input text to HTML output
function createmwCalendar($input)
{
        global $wgOut;
        $input = $wgOut->parse($input, false);
        $array = explode(' ', $input);
 
        $month = $array[0];
        $year = $array[1];
 
        $mwCalendar = new mwCalendar();             
 
        $mwCalendar->dateNow($month, $year);
        return $mwCalendar->showThisMonth();
}
 
class mwCalendar
{
        var $cal = "CAL_GREGORIAN";
        var $format = "%Y%m%d";
        var $today;
        var $day;
        var $month;
        var $year;
        var $pmonth;
        var $pyear;
        var $nmonth;
        var $nyear;
        var $wday_names = array("Sun","Mon","Tue","Wed","Thu","Fri","Sat");
        var $wmonth_names = array("January","Febuary","March","April","May","June","July","August","September","October","November","December");
 
        function mwCalendar()
        {
                $this->day = "1";
                $today = "";
                $month = "";
                $year = "";
                $pmonth = "";
                $pyear = "";
                $nmonth = "";
                $nyear = "";
        }
 
 
        function dateNow($month,$year)
        {
                $this->month = $month;
                $this->year = $year;
                $this->today = strftime("%d",time());             
                $this->pmonth = $this->month - 1;
                $this->pyear = $this->year - 1;
                $this->nmonth = $this->month + 1;
                $this->nyear = $this->year + 1;      
        }
 
        function daysInMonth($month,$year)
        {
                if (empty($year))
                {
                        $year = mwCalendar::dateNow("%Y");
                }
                if (empty($month))
                {
                        $month = mwCalendar::dateNow("%m");
                }
                if($month == "2")
                {
                        if(mwCalendar::isLeapYear($year))
                        {
                                return 29;
                        }
                        else
                        {
                                return 28;
                        }
                }
                else if ($month == "4" || $month == "6" || $month == "9" || $month == "11")
                {
                        return 30;              
                }
                else
                {
                        return 31;
                }                 
        }
 
        function isLeapYear($year)
        {
      return (($year % 4 == "0" && $year % 100 != "0") || $year % 400 == "0"); 
        }
 
        function dayOfWeek($month,$year) 
        { 
                if ($month > 2) {
                                $month -= 2; 
                }
                else 
                { 
                                $month += 10; 
                                $year--; 
                } 
 
                $day =  ( floor((13 * $month - 1) / 5) + 
                                                $this->day + ($year % 100) + 
                                                floor(($year % 100) / 4) + 
                                                floor(($year / 100) / 4) - 2 * 
                                                floor($year / 100) + 77); 
 
                $weekday_number = (($day - 7 * floor($day / 7))); 
 
                return $weekday_number; 
  }
 
        function getWeekDay()
        {
                $week_day = mwCalendar::dayOfWeek($this->month,$this->year);
                //return $this->wday_names[$week_day];
                return $week_Day;
        }
 
        function showThisMonth()
        {
                $output = ''; //    reset var
                $output = '<table cellpadding="2" cellspacing="2">';
                $output .= '<tr><td colspan="7" class="cal-header">'. $this->wmonth_names[$this->pmonth] . " " .$this->year .'</td></tr>';
                $output .= '<tr>';
                for($i=0;$i<7;$i++)
                        $output .= '<td>'. $this->wday_names[$i]. '</td>';
                $output .= '</tr>';             
                $wday = mwCalendar::dayOfWeek($this->month,$this->year);
                $no_days = mwCalendar::daysInMonth($this->month,$this->year);
                $count = 1;
                $output .= '<tr>';
                for($i=1;$i<=$wday;$i++)
                {
                        $output .= '<td>&nbsp;</td>';
                        $count++;
                }
                for($i=1;$i<=$no_days;$i++)
                {
                                if($count > 6)
                                {
                                        if($i == $this->today)
                                        {
                                                $output .= '<td>' . $i . '</td></tr>';
                                        }
                                        else
                                        {
                                                $output .= '<td class="cal-weekend">' . $i . '</td></tr>';
                                        }
                                        $count = 0;
                                }
                                else
                                {
                                        if($i == $this->today)
                                        {
                                                $output .= '<td class="cal-today">' . $i . '</td>';
                                        }
                                        else
                                        {
                                                $output .= '<td>' . $i . '</td>';
                                        }
                                }
                                $count++;
                }
                $output .= '</tr></table>';
                return $output;
        } 
}
 
?>

== Then simply add the following line to the end of your LocalSettings.php file:

include("extensions/calendar_extension.php");

and you are ready to go! Go to the sandbox and see if it works!

[edit] Usage

Basic syntax for adding the calendar is, as detailed in the code:

<calendar>05 2006</calendar>

[edit] Comments

At present this extension appears to do little more than draw you up a calendar. But it does. You can add events to this calendar like this:

<calendar>
## name=mycalendar
## view=threemonths
## format = mycalendar-%year-%m-%d
</calendar>
Retrieved from "http://www.mediawiki.org/wiki/Extension:Calendar_(Shane)"
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