<?php
# Calendar Extension
# http://www.mediawiki.org/wiki/Extension:Calendar_%28Barrylb%29
# Creates a calendar for the month and optional 'upcoming events' box beneath
# This extension creates links to my Special:Events page to show the events for a particular day or month
#
# Cool new feature: the calendar can use AJAX to dynamically display the next and previous months
# without refreshing an entire page. There are a few requirements:
# - You need to put some code in your MediaWiki:common.js page for this to work (see the above link for the code)
# - The Special:Events page must be installed and working
# - Your calendar must be wrapped in an element with id="p-calendar"
# - Finally, to enable the feature use: <calendar>ajaxprevnext=on</calendar>
#
# Events must be stored in articles with [[Category:Events]] and a category for the date, eg [[Category:2006/07/12]]
# You can change the Events category to something else using the category=xxx option
#
# To install, add this line to LocalSettings.php: require_once("extensions/Calendar.php");
#
# eg <calendar/> shows current month and upcoming events
# Options:
# upcoming=off to not show upcoming events
# calendar=off to not show calendar
# ajaxprevnext=on to use AJAX for previous/next months
# category=Name to set which category to lookup for events (e.g. category=Fundraising)
#
# You may combine multiple parameters (eg upcoming=off and ajaxprevnext=on) by using | between them
# e.g. <calendar>upcoming=off|ajaxprevnext=on</calendar>
#
//Avoid unstubbing $wgParser too early on modern (1.12+) MW versions, as per r35980
if ( defined( 'MW_SUPPORTS_PARSERFIRSTCALLINIT' ) ) {
$wgHooks['ParserFirstCallInit'][] = 'wfCalendarExtension';
} else {
$wgExtensionFunctions[] = 'wfCalendarExtension';
}
$wgExtensionCredits['parserhook'][] = array(
'name' => 'Calendar',
'version' => '1.5',
'author' => 'Barrylb',
'description' => 'Adds <tt><calendar></tt> tag',
'url' => 'http://www.mediawiki.org/wiki/Extension:Calendar_%28Barrylb%29'
);
/* DO NOT EDIT BEYOND THIS LINE */
function wfCalendarExtension() {
global $wgParser;
$wgParser->setHook( 'calendar', 'createmwCalendar' );
return true;
}
# The callback function for converting the input text to HTML output
function createmwCalendar($input) {
/**
* check if date in $_GET-parameter
* fallback on default this month
**/
if(isset($_GET['month'])&&(isset($_GET['year']))) {
$month = intval($_GET['month']);
$month = ($month<10?"0".$month:$month);
$year = $_GET['year'];
} else {
$month = date("m");
$year = date("Y");
}
$mwCalendar = new mwCalendar();
$mwCalendar->dateNow($month, $year);
preg_match('/category=([^|]*)/', $input, $matches);
if (isset($matches[1]))
$mwCalendar->SetCatName($matches[1]);
if (strpos($input,'ajaxprevnext=on') !== false)
$mwCalendar->AjaxPrevNext(true);
else
$mwCalendar->AjaxPrevNext(false);
if (strpos($input,'upcoming=off') === false)
$mwCalendar->ShowUpcoming(true);
else
$mwCalendar->ShowUpcoming(false);
if (strpos($input,'calendar=off') === false)
$mwCalendar->ShowCalendar(true);
else
$mwCalendar->ShowCalendar(false);
return $mwCalendar->showThisMonth();
}
class mwCalendar {
var $cal = "CAL_GREGORIAN";
var $today;
var $day;
var $month;
var $year;
var $pmonth;
var $pyear;
var $nmonth;
var $nyear;
var $bShowUpcoming;
var $bShowCalendar;
var $catname = 'Events';
var $bAjaxPrevNext = false; /*use AJAX calls for prev/next month links */
var $wday_start = 1; /* set to 0 for week starting on Sunday; 1 for Monday */
var $wday_names = array("S","M","T","W","T","F","S");
var $wmonth_names = array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
function mwCalendar() {
$this->day = "1";
$today = "";
$month = "";
$year = "";
$pmonth = "";
$pyear = "";
$nmonth = "";
$nyear = "";
}
function ShowUpcoming($b) {
$this->bShowUpcoming = $b;
}
function ShowCalendar($b) {
$this->bShowCalendar = $b;
}
function AjaxPrevNext($b) {
$this->bAjaxPrevNext = $b;
}
function SetCatName($cn) {
$this->catname = $cn;
}
function dateNow($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 showThisMonth() {
global $wgScript, $wgArticlePath, $wgUser;
$lastyear = ($this->month==1?$this->year - 1:$this->year);
$nextyear = ($this->month==12?$this->year + 1:$this->year);
$lastmonth = ($this->month==1? 12 : $this->month - 1);
$nextmonth = ($this->month==12? 1 : $this->month + 1);
$lastmonth = ($lastmonth<10?"0".$lastmonth:$lastmonth);
$nextmonth = ($nextmonth<10?"0".$nextmonth:$nextmonth);
$sk = $wgUser->getSkin();
$dbr = wfGetDB( DB_SLAVE );
$sPageTable = $dbr->tableName( 'page' );
$categorylinks = $dbr->tableName( 'categorylinks' );
$res = $dbr->query(
"SELECT page_title, clike1.cl_to AS catlike1 " .
"FROM $sPageTable INNER JOIN $categorylinks AS c1 ON page_id = c1.cl_from AND c1.cl_to='" . $this->catname . "' INNER JOIN $categorylinks " .
"AS clike1 ON page_id = clike1.cl_from AND clike1.cl_to LIKE '" . $this->year . "/" . $this->month . "/__' " .
"WHERE page_is_redirect = 0");
while ($row = $dbr->fetchObject( $res ) ) {
$dbDay = substr($row->catlike1,8,2);
if (isset($eventsByDay[$dbDay]) == '')
$eventsByDay[$dbDay] = substr($row->page_title, 0, 200);
else
$eventsByDay[$dbDay] = '*multiple events*';
}
if ($this->bShowCalendar) {
/**
* Show calendar
**/
$output = '';
$output .= '<table align="center" border="0" cellpadding="0" cellspacing="0" class="calendar">';
for($i=0;$i<7;$i++)
if (((($i + $this->wday_start) % 7) == 6) || ((($i + $this->wday_start) % 7) == 0))
$output .= '<col class="cal-weekend"/>';
else
$output .= '<col/>';
if (!$this->bShowUpcoming)
$showupcoming_href = '&upcoming=off';
else
$showupcoming_href= '';
if ($this->catname != 'Events')
$catname_href = '&category=' . $this->catname;
else
$catname_href = '';
$output .= '<tr class="calendarTop"><td><a href="'. str_replace('$1', "Special:Events?year=".$lastyear."&month=".$lastmonth.$catname_href, $wgArticlePath) . '"';
if ($this->bAjaxPrevNext)
$output .= ' onclick="makeRequest(\'' . str_replace('$1', "Special:Events?year=".$lastyear."&month=".$lastmonth.$showupcoming_href.$catname_href, $wgArticlePath) . '&ajax\'); return false;"';
$output .= '><</a></td><td colspan="5" class="cal-header"><center>'.
'<a href="'. str_replace('$1', "Special:Events?year=".$this->year."&month=".$this->month.$catname_href, $wgArticlePath) .'">' . $this->wmonth_names[$this->pmonth] . ' ' .$this->year .'</a></center></td><td><a href="'.
str_replace('$1', "Special:Events?year=".$nextyear."&month=".$nextmonth.$catname_href, $wgArticlePath) .'"';
if ($this->bAjaxPrevNext)
$output .= ' onclick="makeRequest(\'' . str_replace('$1', "Special:Events?year=".$nextyear."&month=".$nextmonth.$showupcoming_href.$catname_href, $wgArticlePath) . '&ajax\'); return false;"';
$output .= '>></a></td></tr>';
$output .= '<tr class="calendarDayNames">';
for($i=0;$i<7;$i++)
$output .= '<td>'. $this->wday_names[($i + $this->wday_start) % 7]. '</td>';
$output .= '</tr>';
$wday = date("w",mktime(0,0,0,$this->month,1,$this->year)); // get day of week 0-6 of first day of month (0 = Sunday thru 6=Saturday)
$wday = $wday - $this->wday_start;
if ($wday < 0)
$wday = 7 + $wday;
$no_days = date("t",mktime(0,0,0,$this->month,1,$this->year)); // number of days in month
$count = 1;
$output .= '<tr>';
for($i=1;$i<=$wday;$i++) {
$output .= '<td> </td>';
$count++;
}
/**
* every day is a link to that day
**/
$todaysMonth = date("m");
$todaysYear = date('Y');
for($i=1;$i<=$no_days;$i++) {
if ($count == 1)
$output .= '<tr>';
$dayNr = ($i<10?"0".$i:$i);
$alinkedit = str_replace('$1', "Special:Events?year=".$this->year."&month=".$this->month."&day=".$dayNr.$catname_href, $wgArticlePath);
if (isset($eventsByDay[$dayNr]))
$full_link = '<a title="' . str_replace('_',' ',$eventsByDay[$dayNr]) . '" href="'.$alinkedit.'">' . $i . '</a>';
else
$full_link = $i;
$cell_class = '';
if (($i == $this->today) && ($this->month == $todaysMonth) && ($this->year == $todaysYear))
$cell_class .= ' cal-today';
if (isset($eventsByDay[$dayNr]))
$cell_class .= ' cal-eventday';
if (($i == $this->today) && ($this->month == $todaysMonth) && ($this->year == $todaysYear) && isset($eventsByDay[$dayNr]))
$cell_class .= ' cal-eventtoday';
if ($cell_class != '')
$cell_class = ' class="' . $cell_class . '"';
$output .= '<td ' . $cell_class . '>' . $full_link . '</td>';
if ($count > 6) {
$output .= '</tr>';
$count = 1;
}
else
$count++;
}
if ($count > 1) {
for($i=$count;$i<=7;$i++)
$output .= "<td> </td>";
$output .= '</tr>';
}
$output .= '</table>';
} // end if show calendar
if ($this->bShowUpcoming) {
/**
* Show upcoming events
**/
$output .= '<table align="center" width="100%" border="0" cellpadding="0" cellspacing="0" class="calendarupcoming">' .
'<tr><td class="calendarupcomingTop">Events Upcoming</td></tr>';
$sql = "SELECT page_title, page_namespace, clike1.cl_to AS catlike1 " .
"FROM $sPageTable INNER JOIN $categorylinks AS c1 ON page_id = c1.cl_from AND c1.cl_to='" . $this->catname . "' INNER JOIN $categorylinks " .
"AS clike1 ON page_id = clike1.cl_from AND clike1.cl_to LIKE '____/__/__' AND clike1.cl_to >= '" . date('Y/m/d') . "' " .
"WHERE page_is_redirect = 0 " .
"ORDER BY clike1.cl_to ASC " .
"LIMIT 5";
$res = $dbr->query($sql);
$rowClass = "calendarupcomingRow1";
while ($row = $dbr->fetchObject( $res ) ) {
$title = Title::makeTitle($row->page_namespace, $row->page_title);
$title_text = $title->getSubpageText();
$title_text = str_replace('_',' ',$title_text);
$eventDate = substr($row->catlike1,8,2) . '-' . substr($row->catlike1,5,2) . '-' . substr($row->catlike1,0,4);
$output .= '<tr><td class="' . $rowClass;
if ($row->catlike1 == date('Y/m/d'))
$output .= ' calendarupcoming-today';
$output .= '">' . $sk->makeKnownLinkObj($title, "» " . $title_text . '<br />' . $eventDate) . '</td></tr>';
$rowClass = "calendarupcomingRow2";
}
$output .= '<tr><td class="calendarupcomingBottom">';
if ($this->catname != 'Events')
$output .= '<a href="'. str_replace('$1', 'Special:Events?category=' . $this->catname, $wgArticlePath) . '">More »</a>';
else
$output .= '<a href="'. str_replace('$1', 'Special:Events', $wgArticlePath) . '">More »</a>';
$output .= '</td></tr></table>';
}
return $output;
}
}
