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7b38bfa6fd
foresaw that they could be, that is simple and elegant. The previous solution did the job I guess, but it was based on a naive approach...
1178 lines
48 KiB
PHP
1178 lines
48 KiB
PHP
<?php // $Id$
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/////////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Calendar extension //
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// //
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// Copyright (C) 2003-2004 Greek School Network www.sch.gr //
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// //
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// Designed by: //
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// Avgoustos Tsinakos (tsinakos@uom.gr) //
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// Jon Papaioannou (pj@uom.gr) //
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// //
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// Programming and development: //
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// Jon Papaioannou (pj@uom.gr) //
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// //
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// For bugs, suggestions, etc contact: //
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// Jon Papaioannou (pj@uom.gr) //
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// //
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// The current module was developed at the University of Macedonia //
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// (www.uom.gr) under the funding of the Greek School Network (www.sch.gr) //
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// The aim of this project is to provide additional and improved //
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// functionality to the Asynchronous Distance Education service that the //
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// Greek School Network deploys. //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation; either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details: //
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// //
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// http://www.gnu.org/copyleft/gpl.html //
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// //
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/////////////////////////////////////////////////////////////////////////////
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$firstday = get_string('firstdayofweek');
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if(!is_numeric($firstday)) {
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define ('CALENDAR_STARTING_WEEKDAY', 1);
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}
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else {
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define ('CALENDAR_STARTING_WEEKDAY', intval($firstday) % 7);
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}
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define ('SECS_IN_DAY', 86400);
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define ('CALENDAR_UPCOMING_DAYS', 14);
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define ('CALENDAR_UPCOMING_MAXEVENTS', 10);
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define ('CALENDAR_URL', $CFG->wwwroot.'/calendar/');
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define ('CALENDAR_TF_24', '%H:%M');
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define ('CALENDAR_TF_12', '%I:%M %p');
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// Initialize the session variables here to be sure
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calendar_session_vars();
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function calendar_get_mini($courses, $groups, $users, $cal_month = false, $cal_year = false) {
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global $CFG, $USER;
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$display = &New stdClass;
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$display->minwday = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
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$display->maxwday = $display->minwday + 6;
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$content = '';
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if(!empty($cal_month) && !empty($cal_year)) {
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$thisdate = usergetdate(time()); // Date and time the user sees at his location
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if($cal_month == $thisdate['mon'] && $cal_year == $thisdate['year']) {
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// Navigated to this month
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$date = $thisdate;
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$display->thismonth = true;
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}
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else {
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// Navigated to other month, let's do a nice trick and save us a lot of work...
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if(!checkdate($cal_month, 1, $cal_year)) {
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$date = array('mday' => 1, 'mon' => $thisdate['mon'], 'year' => $thisdate['year']);
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$display->thismonth = true;
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}
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else {
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$date = array('mday' => 1, 'mon' => $cal_month, 'year' => $cal_year);
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$display->thismonth = false;
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}
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}
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}
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else {
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$date = usergetdate(time()); // Date and time the user sees at his location
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$display->thismonth = true;
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}
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// Fill in the variables we 're going to use, nice and tidy
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list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']); // This is what we want to display
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$display->maxdays = calendar_days_in_month($m, $y);
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// We 'll keep these values as GMT here, and offset them when the time comes to query the db
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$display->tstart = gmmktime(0, 0, 0, $m, 1, $y); // This is GMT
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$display->tend = gmmktime(23, 59, 59, $m, $display->maxdays, $y); // GMT
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$startwday = gmdate('w', $display->tstart); // $display->tstart is already GMT, so don't use date(): messes with server's TZ
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// Align the starting weekday to fall in our display range
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// This is simple, not foolproof.
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if($startwday < $display->minwday) {
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$startwday += 7;
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}
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// Get the events matching our criteria. Don't forget to offset the timestamps for the user's TZ!
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$whereclause = calendar_sql_where(usertime($display->tstart), usertime($display->tend), $users, $groups, $courses);
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if($whereclause === false) {
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$events = array();
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}
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else {
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$events = get_records_select('event', $whereclause);
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}
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// This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
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// possibly removing courseid 1 from $courses, there is only one course left, then clicking on a day in the month
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// will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
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// arguments to this function.
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$morehref = '';
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if(!empty($courses)) {
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$courses = array_diff($courses, array(1));
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if(count($courses) == 1) {
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$morehref = '&course='.reset($courses);
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}
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}
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// We want to have easy access by day, since the display is on a per-day basis.
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// Arguments passed by reference.
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//calendar_events_by_day($events, $display->tstart, $eventsbyday, $durationbyday, $typesbyday);
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calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday);
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$content .= '<table class="calendarmini">'; // Begin table
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$content .= '<thead><tr>'; // Header row: day names
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// Print out the names of the weekdays
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$days = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
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for($i = $display->minwday; $i <= $display->maxwday; ++$i) {
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// This uses the % operator to get the correct weekday no matter what shift we have
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// applied to the $display->minwday : $display->maxwday range from the default 0 : 6
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$content .= '<td>'.get_string($days[$i % 7], 'calendar').'</td>';
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}
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$content .= '</tr></thead><tbody><tr>'; // End of day names; prepare for day numbers
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// For the table display. $week is the row; $dayweek is the column.
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$dayweek = $startwday;
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// Paddding (the first week may have blank days in the beginning)
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for($i = $display->minwday; $i < $startwday; ++$i) {
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$content .= '<td> </td>'."\n";
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}
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$strftimetimedayshort = get_string('strftimedayshort');
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// Now display all the calendar
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for($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
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if($dayweek > $display->maxwday) {
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// We need to change week (table row)
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$content .= '</tr><tr>';
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$dayweek = $display->minwday;
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}
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// Reset vars
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$cell = '';
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if($dayweek % 7 == 0 || $dayweek % 7 == 6) {
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// Weekend. This is true no matter what the exact range is.
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$class = 'cal_weekend';
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}
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else {
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// Normal working day.
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$class = '';
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}
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// Special visual fx if an event is defined
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if(isset($eventsbyday[$day])) {
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$dayhref = calendar_get_link_href(CALENDAR_URL.'view.php?view=day'.$morehref.'&', $day, $m, $y);
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// OverLib popup
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$popupcontent = '';
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foreach($eventsbyday[$day] as $eventid) {
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if (!isset($events[$eventid])) {
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continue;
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}
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$event = $events[$eventid];
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if(!empty($event->modulename)) {
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$popupicon = $CFG->modpixpath.'/'.$event->modulename.'/icon.gif';
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$popupalt = $event->modulename;
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} else if ($event->courseid == 1) { // Site event
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$popupicon = $CFG->pixpath.'/c/site.gif';
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$popupalt = '';
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} else if ($event->courseid > 1 and empty($event->groupid)) { // Course event
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$popupicon = $CFG->pixpath.'/c/course.gif';
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$popupalt = '';
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} else if ($event->groupid) { // Group event
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$popupicon = $CFG->pixpath.'/c/group.gif';
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$popupalt = '';
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} else if ($event->userid) { // User event
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$popupicon = $CFG->pixpath.'/c/user.gif';
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$popupalt = '';
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}
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$popupcontent .= '<div><img height="16" width="16" src="'.$popupicon.'" style="vertical-align: middle; margin-right: 4px;" alt="'.$popupalt.'" /><a href="'.$dayhref.'">'.$event->name.'</a></div>';
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}
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$popupcaption = get_string('eventsfor', 'calendar', userdate($events[$eventid]->timestart, $strftimetimedayshort));
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$popupcontent = str_replace("'", "\'", htmlspecialchars($popupcontent));
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$popup = 'onmouseover="return overlib(\''.$popupcontent.'\', CAPTION, \''.$popupcaption.'\');" onmouseout="return nd();"';
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// Class and cell content
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if(isset($typesbyday[$day]['startglobal'])) {
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$class .= ' cal_event_global';
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}
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else if(isset($typesbyday[$day]['startcourse'])) {
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$class .= ' cal_event_course';
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}
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else if(isset($typesbyday[$day]['startgroup'])) {
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$class .= ' cal_event_group';
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}
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else if(isset($typesbyday[$day]['startuser'])) {
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$class .= ' cal_event_user';
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}
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$cell = '<strong><a href="'.$dayhref.'" '.$popup.'">'.$day.'</a></strong>';
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}
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else {
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$cell = $day;
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}
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if(isset($typesbyday[$day]['durationglobal'])) {
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$class .= ' cal_duration_global';
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}
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else if(isset($typesbyday[$day]['durationcourse'])) {
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$class .= ' cal_duration_course';
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}
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else if(isset($typesbyday[$day]['durationgroup'])) {
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$class .= ' cal_duration_group';
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}
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else if(isset($typesbyday[$day]['durationuser'])) {
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$class .= ' cal_duration_user';
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}
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// Special visual fx for today
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if($display->thismonth && $day == $d) {
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$class .= ' cal_today';
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}
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// Just display it
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if(!empty($class)) {
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$class = ' class="'.$class.'"';
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}
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$content .= '<td'.$class.'>'.$cell."</td>\n";
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}
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// Paddding (the last week may have blank days at the end)
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for($i = $dayweek; $i <= $display->maxwday; ++$i) {
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$content .= '<td> </td>';
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}
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$content .= '</tr>'; // Last row ends
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$content .= '</tbody></table>'; // Tabular display of days ends
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return $content;
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}
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function calendar_get_upcoming($courses, $groups, $users, $daysinfuture, $maxevents, $fromtime=0) {
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global $CFG;
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$display = &New stdClass;
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$display->range = $daysinfuture; // How many days in the future we 'll look
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$display->maxevents = $maxevents;
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$output = array();
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// Prepare "course caching", since it may save us a lot of queries
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$coursecache = array();
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$processed = 0;
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$now = time(); // We 'll need this later
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$usermidnighttoday = usergetmidnight($now);
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if ($fromtime) {
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$display->tstart = $fromtime;
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} else {
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$display->tstart = $usermidnighttoday;
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}
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// This effectively adds as many days as needed, and the final SECS_IN_DAY - 1
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// serves to cover the duration until the end of the final day. We could
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// just do another gmmktime() and an addition, but this is "faster" :)
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$display->tend = $display->tstart + (SECS_IN_DAY * $display->range) - 1;
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// Get the events matching our criteria
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$whereclause = calendar_sql_where($display->tstart, $display->tend, $users, $groups, $courses);
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if ($whereclause === false) {
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$events = false;
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} else {
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$whereclause .= ' ORDER BY timestart'; // We want them this way
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$events = get_records_select('event', $whereclause);
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}
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// This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
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// possibly removing courseid 1 from $courses, there is only one course left, then clicking on a day in the month
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// will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
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// arguments to this function.
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$morehref = '';
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if(!empty($courses)) {
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$courses = array_diff($courses, array(1));
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if(count($courses) == 1) {
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$morehref = '&course='.reset($courses);
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}
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}
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if($events !== false) {
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foreach($events as $event) {
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if($processed >= $display->maxevents) {
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break;
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}
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$startdate = usergetdate($event->timestart);
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$enddate = usergetdate($event->timestart + $event->timeduration);
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$usermidnightstart = usergetmidnight($event->timestart);
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if($event->timeduration) {
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// To avoid doing the math if one IF is enough :)
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$usermidnightend = usergetmidnight($event->timestart + $event->timeduration);
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}
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else {
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$usermidnightend = $usermidnightstart;
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}
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// OK, now to get a meaningful display...
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// First of all we have to construct a human-readable date/time representation
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if($event->timestart + $event->timeduration < $now) {
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// It has expired, so we don't care about duration
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$day = calendar_day_representation($event->timestart + $event->timeduration, $now);
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$time = calendar_time_representation($event->timestart + $event->timeduration);
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// This var always has the printable time representation
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$eventtime = '<span class="dimmed_text"><a class="dimmed" href="'.calendar_get_link_href(CALENDAR_URL.'view.php?view=day'.$morehref.'&', $enddate['mday'], $enddate['mon'], $enddate['year']).'">'.$day.'</a> ('.$time.')</span>';
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}
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else if($event->timeduration) {
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// It has a duration
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if($usermidnightstart == $usermidnightend) {
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// But it's all on the same day
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$day = calendar_day_representation($event->timestart, $now);
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$timestart = calendar_time_representation($event->timestart);
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$timeend = calendar_time_representation($event->timestart + $event->timeduration);
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// Set printable representation
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$eventtime = calendar_get_link_tag($day, CALENDAR_URL.'view.php?view=day'.$morehref.'&', $enddate['mday'], $enddate['mon'], $enddate['year']).
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' ('.$timestart.' -> '.$timeend.')';
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}
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else {
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// It spans two or more days
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$daystart = calendar_day_representation($event->timestart, $now);
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$dayend = calendar_day_representation($event->timestart + $event->timeduration, $now);
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$timestart = calendar_time_representation($event->timestart);
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$timeend = calendar_time_representation($event->timestart + $event->timeduration);
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// Set printable representation
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$eventtime = calendar_get_link_tag($daystart, CALENDAR_URL.'view.php?view=day'.$morehref.'&', $startdate['mday'], $startdate['mon'], $startdate['year']).
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' ('.$timestart.') -> '.calendar_get_link_tag($dayend, CALENDAR_URL.'view.php?view=day'.$morehref.'&', $enddate['mday'], $enddate['mon'], $enddate['year']).
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' ('.$timeend.')';
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}
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}
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else {
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// It's an "instantaneous" event
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$day = calendar_day_representation($event->timestart, $now);
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$time = calendar_time_representation($event->timestart);
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// Set printable representation
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$eventtime = calendar_get_link_tag($day, CALENDAR_URL.'view.php?view=day'.$morehref.'&', $startdate['mday'], $startdate['mon'], $startdate['year']).' ('.$time.')';
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}
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$outkey = count($output);
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$output[$outkey] = $event; // Grab the whole raw event by default
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// Now we know how to display the time, we have to see how to display the event
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if(!empty($event->modulename)) { // Activity event
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// The module name is set. I will assume that it has to be displayed, and
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// also that it is an automatically-generated event. And of course that the
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// three fields for get_coursemodule_from_instance are set correctly.
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calendar_get_course_cached($coursecache, $event->courseid);
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$module = calendar_get_module_cached($coursecache, $event->modulename, $event->instance, $event->courseid);
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if ($module === false) {
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// This shouldn't have happened. What to do now?
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// Just ignore it
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continue;
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}
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$modulename = get_string('modulename', $event->modulename);
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$eventtype = get_string($event->eventtype, $event->modulename);
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$icon = $CFG->modpixpath.'/'.$event->modulename.'/icon.gif';
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$output[$outkey]->icon = '<img height=16 width=16 src="'.$icon.'" alt="" title="'.$modulename.'" style="vertical-align: middle;" />';
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$output[$outkey]->referer = '<a href="'.$CFG->wwwroot.'/mod/'.$event->modulename.'/view.php?id='.$module->id.'">'.$event->name.'</a>';
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$output[$outkey]->time = $eventtime;
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$output[$outkey]->courselink = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$event->courseid.'">'.$coursecache[$event->courseid]->fullname.'</a>';
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$output[$outkey]->cmid = $module->id;
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} else if($event->courseid == 1) { // Site event
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$output[$outkey]->icon = '<img height=16 width=16 src="'.$CFG->pixpath.'/c/site.gif" alt="" style="vertical-align: middle;" />';
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$output[$outkey]->time = $eventtime;
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} else if($event->courseid > 1 and !$event->groupid) { // Course event
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calendar_get_course_cached($coursecache, $event->courseid);
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$output[$outkey]->icon = '<img height=16 width=16 src="'.$CFG->pixpath.'/c/course.gif" alt="" style="vertical-align: middle;" />';
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$output[$outkey]->time = $eventtime;
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$output[$outkey]->courselink = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$event->courseid.'">'.$coursecache[$event->courseid]->fullname.'</a>';
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} else if ($event->groupid) { // Group event
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|
$output[$outkey]->icon = '<img height=16 width=16 src="'.$CFG->pixpath.'/c/group.gif" alt="" style="vertical-align: middle;" />';
|
|
$output[$outkey]->time = $eventtime;
|
|
|
|
|
|
|
|
} else if($event->userid) { // User event
|
|
$output[$outkey]->icon = '<img height=16 width=16 src="'.$CFG->pixpath.'/c/user.gif" alt="" style="vertical-align: middle;" />';
|
|
$output[$outkey]->time = $eventtime;
|
|
}
|
|
++$processed;
|
|
}
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
function calendar_sql_where($tstart, $tend, $users, $groups, $courses, $withduration=true, $ignorehidden=true) {
|
|
$whereclause = '';
|
|
// Quick test
|
|
if(is_bool($users) && is_bool($groups) && is_bool($courses)) {
|
|
return false;
|
|
}
|
|
if(is_array($users) && !empty($users)) {
|
|
// Events from a number of users
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' userid IN ('.implode(',', $users).') AND courseid = 0 AND groupid = 0';
|
|
}
|
|
else if(is_numeric($users)) {
|
|
// Events from one user
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' userid = '.$users.' AND courseid = 0 AND groupid = 0';
|
|
}
|
|
else if($users === true) {
|
|
// Events from ALL users
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' userid != 0 AND courseid = 0 AND groupid = 0';
|
|
}
|
|
else if($users === false) {
|
|
// No user at all
|
|
if(!empty($whereclause)) {
|
|
$whereclause .= ' OR';
|
|
}
|
|
$whereclause .= ' 0';
|
|
}
|
|
if(is_array($groups) && !empty($groups)) {
|
|
// Events from a number of groups
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' groupid IN ('.implode(',', $groups).')';
|
|
}
|
|
else if(is_numeric($groups)) {
|
|
// Events from one group
|
|
if(!empty($whereclause)) $whereclause .= ' OR ';
|
|
$whereclause .= ' groupid = '.$groups;
|
|
}
|
|
else if($groups === true) {
|
|
// Events from ALL groups
|
|
if(!empty($whereclause)) $whereclause .= ' OR ';
|
|
$whereclause .= ' groupid != 0';
|
|
}
|
|
if(is_array($courses)) {
|
|
// A number of courses (maybe none at all!)
|
|
if(!empty($courses)) {
|
|
if(!empty($whereclause)) {
|
|
$whereclause .= ' OR';
|
|
}
|
|
$whereclause .= ' groupid = 0 AND courseid IN ('.implode(',', $courses).')';
|
|
}
|
|
else {
|
|
// This means NO courses, not that we don't care!
|
|
if(!empty($whereclause)) {
|
|
$whereclause .= ' OR';
|
|
}
|
|
$whereclause .= ' 0';
|
|
}
|
|
}
|
|
else if(is_numeric($courses)) {
|
|
// One course
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' groupid = 0 AND courseid = '.$courses;
|
|
}
|
|
else if($courses === true) {
|
|
// Events from ALL courses
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' groupid = 0 AND courseid != 0';
|
|
}
|
|
|
|
if ($ignorehidden) {
|
|
if (!empty($whereclause)) $whereclause .= ' AND';
|
|
$whereclause .= ' visible = 1';
|
|
}
|
|
|
|
if($withduration) {
|
|
$timeclause = 'timestart + timeduration >= '.$tstart.' AND timestart <= '.$tend;
|
|
}
|
|
else {
|
|
$timeclause = 'timestart >= '.$tstart.' AND timestart <= '.$tend;
|
|
}
|
|
if(!empty($whereclause)) {
|
|
// We have additional constraints
|
|
$whereclause = $timeclause.' AND ('.$whereclause.')';
|
|
}
|
|
else {
|
|
// Just basic time filtering
|
|
$whereclause = $timeclause;
|
|
}
|
|
|
|
return $whereclause;
|
|
}
|
|
|
|
function calendar_top_controls($type, $data) {
|
|
global $CFG;
|
|
$content = '';
|
|
if(!isset($data['d'])) {
|
|
$data['d'] = 1;
|
|
}
|
|
$time = calendar_mktime_check($data['m'], $data['d'], $data['y']);
|
|
$date = getdate($time);
|
|
$data['m'] = $date['mon'];
|
|
$data['y'] = $date['year'];
|
|
|
|
switch($type) {
|
|
case 'frontpage':
|
|
list($prevmonth, $prevyear) = calendar_sub_month($data['m'], $data['y']);
|
|
list($nextmonth, $nextyear) = calendar_add_month($data['m'], $data['y']);
|
|
$nextlink = calendar_get_link_tag('>>', 'index.php?', 0, $nextmonth, $nextyear);
|
|
$prevlink = calendar_get_link_tag('<<', 'index.php?', 0, $prevmonth, $prevyear);
|
|
$content .= '<table class="generaltable" style="width: 100%;"><tr>';
|
|
$content .= '<td style="text-align: left; width: 12%;">'.$prevlink."</td>\n";
|
|
$content .= '<td style="text-align: center;"><a href="'.calendar_get_link_href(CALENDAR_URL.'view.php?view=month&', 1, $data['m'], $data['y']).'">'.strftime(get_string('strftimemonthyear'), $time)."</a></td>\n";
|
|
$content .= '<td style="text-align: right; width: 12%;">'.$nextlink."</td>\n";
|
|
$content .= '</tr></table>';
|
|
break;
|
|
case 'course':
|
|
list($prevmonth, $prevyear) = calendar_sub_month($data['m'], $data['y']);
|
|
list($nextmonth, $nextyear) = calendar_add_month($data['m'], $data['y']);
|
|
$nextlink = calendar_get_link_tag('>>', 'view.php?id='.$data['id'].'&', 0, $nextmonth, $nextyear);
|
|
$prevlink = calendar_get_link_tag('<<', 'view.php?id='.$data['id'].'&', 0, $prevmonth, $prevyear);
|
|
$content .= '<table class="generaltable" style="width: 100%;"><tr>';
|
|
$content .= '<td style="text-align: left; width: 12%;">'.$prevlink."</td>\n";
|
|
$content .= '<td style="text-align: center;"><a href="'.calendar_get_link_href(CALENDAR_URL.'view.php?view=month&course='.$data['id'].'&', 1, $data['m'], $data['y']).'">'.strftime(get_string('strftimemonthyear'), $time)."</a></td>\n";
|
|
$content .= '<td style="text-align: right; width: 12%;">'.$nextlink."</td>\n";
|
|
$content .= '</tr></table>';
|
|
break;
|
|
case 'upcoming':
|
|
$content .= '<div style="text-align: center;"><a href="'.CALENDAR_URL.'view.php?view=upcoming">'.strftime(get_string('strftimemonthyear'), $time)."</a></div>\n";
|
|
break;
|
|
case 'display':
|
|
$content .= '<div style="text-align: center;"><a href="'.calendar_get_link_href(CALENDAR_URL.'view.php?view=month&', 1, $data['m'], $data['y']).'">'.strftime(get_string('strftimemonthyear'), $time)."</a></div>\n";
|
|
break;
|
|
case 'month':
|
|
list($prevmonth, $prevyear) = calendar_sub_month($data['m'], $data['y']);
|
|
list($nextmonth, $nextyear) = calendar_add_month($data['m'], $data['y']);
|
|
$prevdate = calendar_mktime_check($prevmonth, 1, $prevyear);
|
|
$nextdate = calendar_mktime_check($nextmonth, 1, $nextyear);
|
|
$content .= "<table style='width: 100%;'><tr>\n";
|
|
$content .= '<td style="text-align: left; width: 30%;"><a href="'.calendar_get_link_href('view.php?view=month&', 1, $prevmonth, $prevyear).'"><< '.strftime(get_string('strftimemonthyear'), $prevdate)."</a></td>\n";
|
|
$content .= '<td style="text-align: center"><strong>'.strftime(get_string('strftimemonthyear'), $time)."</strong></td>\n";
|
|
$content .= '<td style="text-align: right; width: 30%;"><a href="'.calendar_get_link_href('view.php?view=month&', 1, $nextmonth, $nextyear).'">'.strftime(get_string('strftimemonthyear'), $nextdate)." >></a></td>\n";
|
|
$content .= "</tr></table>\n";
|
|
break;
|
|
case 'day':
|
|
$data['d'] = $date['mday']; // Just for convenience
|
|
$dayname = calendar_wday_name($date['weekday']);
|
|
$prevdate = getdate($time - SECS_IN_DAY);
|
|
$nextdate = getdate($time + SECS_IN_DAY);
|
|
$prevname = calendar_wday_name($prevdate['weekday']);
|
|
$nextname = calendar_wday_name($nextdate['weekday']);
|
|
$content .= "<table style='width: 100%;'><tr>\n";
|
|
$content .= '<td style="text-align: left; width: 20%;"><a href="'.calendar_get_link_href('view.php?view=day&', $prevdate['mday'], $prevdate['mon'], $prevdate['year']).'"><< '.$prevname."</a></td>\n";
|
|
|
|
// Get the format string
|
|
$text = get_string('strftimedaydate');
|
|
// Regexp hackery to make a link out of the month/year part
|
|
$text = ereg_replace('(%B.+%Y|%Y.+%B|%Y.+%m[^ ]+)', '<a href="'.calendar_get_link_href('view.php?view=month&', 1, $data['m'], $data['y']).'">\\1</a>', $text);
|
|
// Replace with actual values and lose any day leading zero
|
|
$text = strftime($text, $time);
|
|
$text = str_replace(' 0', ' ', $text);
|
|
// Print the actual thing
|
|
$content .= '<td style="text-align: center"><strong>'.$text."</strong></td>\n";
|
|
|
|
$content .= '<td style="text-align: right; width: 20%;"><a href="'.calendar_get_link_href('view.php?view=day&', $nextdate['mday'], $nextdate['mon'], $nextdate['year']).'">'.$nextname." >></a></td>\n";
|
|
$content .= "</tr></table>\n";
|
|
break;
|
|
}
|
|
return $content;
|
|
}
|
|
|
|
function calendar_filter_controls($type, $vars = NULL, $course = NULL) {
|
|
global $CFG, $SESSION, $USER;
|
|
|
|
$groupevents = true;
|
|
$getvars = '';
|
|
|
|
switch($type) {
|
|
case 'event':
|
|
case 'upcoming':
|
|
case 'day':
|
|
case 'month':
|
|
$getvars = '&from='.$type;
|
|
break;
|
|
case 'course':
|
|
$getvars = '&from=course&id='.$_GET['id'];
|
|
if (isset($course->groupmode) and !$course->groupmode and $course->groupmodeforce) {
|
|
$groupevents = false;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!empty($vars)) {
|
|
$getvars .= '&'.$vars;
|
|
}
|
|
|
|
$content = '<table class="cal_controls" style="width: 98%;">';
|
|
|
|
$content .= '<tr>';
|
|
if($SESSION->cal_show_global) {
|
|
$content .= '<td class="cal_event_global" style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showglobal'.$getvars.'" title="'.get_string('tt_hideglobal', 'calendar').'">'.get_string('globalevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
else {
|
|
$content .= '<td style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showglobal'.$getvars.'" title="'.get_string('tt_showglobal', 'calendar').'">'.get_string('globalevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
if($SESSION->cal_show_course) {
|
|
$content .= '<td class="cal_event_course" style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showcourses'.$getvars.'" title="'.get_string('tt_hidecourse', 'calendar').'">'.get_string('courseevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
else {
|
|
$content .= '<td style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showcourses'.$getvars.'" title="'.get_string('tt_showcourse', 'calendar').'">'.get_string('courseevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
|
|
if(!empty($USER) && !isguest($USER->id)) {
|
|
$content .= "</tr>\n<tr>";
|
|
|
|
if($groupevents) {
|
|
// This course MIGHT have group events defined, so show the filter
|
|
if($SESSION->cal_show_groups) {
|
|
$content .= '<td class="cal_event_group" style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showgroups'.$getvars.'" title="'.get_string('tt_hidegroups', 'calendar').'">'.get_string('groupevents', 'calendar').'</a></td>'."\n";
|
|
} else {
|
|
$content .= '<td style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showgroups'.$getvars.'" title="'.get_string('tt_showgroups', 'calendar').'">'.get_string('groupevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
if ($SESSION->cal_show_user) {
|
|
$content .= '<td class="cal_event_user" style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showuser'.$getvars.'" title="'.get_string('tt_hideuser', 'calendar').'">'.get_string('userevents', 'calendar').'</a></td>'."\n";
|
|
} else {
|
|
$content .= '<td style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showuser'.$getvars.'" title="'.get_string('tt_showuser', 'calendar').'">'.get_string('userevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
|
|
} else {
|
|
// This course CANNOT have group events, so lose the filter
|
|
$content .= '<td style="width: 8px;"></td><td> </td>'."\n";
|
|
|
|
if($SESSION->cal_show_user) {
|
|
$content .= '<td class="cal_event_user" style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showuser'.$getvars.'" title="'.get_string('tt_hideuser', 'calendar').'">'.get_string('userevents', 'calendar').'</a></td>'."\n";
|
|
} else {
|
|
$content .= '<td style="width: 8px;"></td><td><a href="'.CALENDAR_URL.'set.php?var=showuser'.$getvars.'" title="'.get_string('tt_showuser', 'calendar').'">'.get_string('userevents', 'calendar').'</a></td>'."\n";
|
|
}
|
|
}
|
|
}
|
|
$content .= "</tr>\n</table>\n";
|
|
|
|
return $content;
|
|
}
|
|
|
|
function calendar_day_representation($tstamp, $now = false, $usecommonwords = true) {
|
|
|
|
static $shortformat;
|
|
if(empty($shortformat)) {
|
|
$shortformat = get_string('strftimedayshort');
|
|
}
|
|
|
|
if($now === false) {
|
|
$now = time();
|
|
}
|
|
|
|
// To have it in one place, if a change is needed
|
|
$formal = userdate($tstamp, $shortformat);
|
|
|
|
$datestamp = usergetdate($tstamp);
|
|
$datenow = usergetdate($now);
|
|
|
|
if($usecommonwords == false) {
|
|
// We don't want words, just a date
|
|
return $formal;
|
|
}
|
|
else if($datestamp['year'] == $datenow['year'] && $datestamp['yday'] == $datenow['yday']) {
|
|
// Today
|
|
return get_string('today', 'calendar');
|
|
}
|
|
else if(
|
|
($datestamp['year'] == $datenow['year'] && $datestamp['yday'] == $datenow['yday'] - 1 ) ||
|
|
($datestamp['year'] == $datenow['year'] - 1 && $datestamp['mday'] == 31 && $datestamp['mon'] == 12 && $datenow['yday'] == 1)
|
|
) {
|
|
// Yesterday
|
|
return get_string('yesterday', 'calendar');
|
|
}
|
|
else if(
|
|
($datestamp['year'] == $datenow['year'] && $datestamp['yday'] == $datenow['yday'] + 1 ) ||
|
|
($datestamp['year'] == $datenow['year'] + 1 && $datenow['mday'] == 31 && $datenow['mon'] == 12 && $datestamp['yday'] == 1)
|
|
) {
|
|
// Tomorrow
|
|
return get_string('tomorrow', 'calendar');
|
|
}
|
|
else {
|
|
return $formal;
|
|
}
|
|
}
|
|
|
|
function calendar_time_representation($time) {
|
|
static $langtimeformat = NULL;
|
|
if($langtimeformat === NULL) {
|
|
$langtimeformat = get_string('strftimetime');
|
|
}
|
|
$timeformat = get_user_preferences('calendar_timeformat');
|
|
// The ? is needed because the preference might be present, but empty
|
|
return userdate($time, empty($timeformat) ? $langtimeformat : $timeformat);
|
|
}
|
|
|
|
function calendar_get_link_href($linkbase, $d, $m, $y) {
|
|
if(empty($linkbase)) return '';
|
|
$paramstr = '';
|
|
if(!empty($d)) $paramstr .= '&cal_d='.$d;
|
|
if(!empty($m)) $paramstr .= '&cal_m='.$m;
|
|
if(!empty($y)) $paramstr .= '&cal_y='.$y;
|
|
if(!empty($paramstr)) $paramstr = substr($paramstr, 5);
|
|
return $linkbase.$paramstr;
|
|
}
|
|
|
|
function calendar_get_link_tag($text, $linkbase, $d, $m, $y) {
|
|
$href = calendar_get_link_href($linkbase, $d, $m, $y);
|
|
if(empty($href)) return $text;
|
|
return '<a href="'.$href.'">'.$text.'</a>';
|
|
}
|
|
|
|
function calendar_gmmktime_check($m, $d, $y, $default = false) {
|
|
if($default === false) $default = time();
|
|
if(!checkdate($m, $d, $y)) {
|
|
return $default;
|
|
}
|
|
else {
|
|
return gmmktime(0, 0, 0, $m, $d, $y);
|
|
}
|
|
}
|
|
|
|
function calendar_mktime_check($m, $d, $y, $default = false) {
|
|
if($default === false) $default = time();
|
|
if(!checkdate($m, $d, $y)) {
|
|
return $default;
|
|
}
|
|
else {
|
|
return mktime(0, 0, 0, $m, $d, $y);
|
|
}
|
|
}
|
|
|
|
function calendar_wday_name($englishname) {
|
|
return get_string(strtolower($englishname), 'calendar');
|
|
}
|
|
|
|
function calendar_days_in_month($month, $year) {
|
|
return intval(date('t', mktime(0, 0, 0, $month, 1, $year)));
|
|
}
|
|
|
|
function calendar_get_sideblock_upcoming($courses, $groups, $users, $daysinfuture, $maxevents) {
|
|
$events = calendar_get_upcoming($courses, $groups, $users, $daysinfuture, $maxevents);
|
|
|
|
$content = '';
|
|
$lines = count($events);
|
|
if (!$lines) {
|
|
return $content;
|
|
}
|
|
|
|
for ($i = 0; $i < $lines; ++$i) {
|
|
$content .= '<div class="cal_event">'.$events[$i]->icon.' ';
|
|
if (!empty($events[$i]->referer)) {
|
|
// That's an activity event, so let's provide the hyperlink
|
|
$content .= $events[$i]->referer;
|
|
} else {
|
|
$content .= $events[$i]->name;
|
|
}
|
|
$events[$i]->time = str_replace('->', '<br />->', $events[$i]->time);
|
|
$content .= '</div><div class="cal_event_date" style="text-align:right;">'.$events[$i]->time.'</div>';
|
|
if ($i < $lines - 1) $content .= '<hr />';
|
|
}
|
|
|
|
return $content;
|
|
}
|
|
|
|
function calendar_add_month($month, $year) {
|
|
if($month == 12) {
|
|
return array(1, $year + 1);
|
|
}
|
|
else {
|
|
return array($month + 1, $year);
|
|
}
|
|
}
|
|
|
|
function calendar_sub_month($month, $year) {
|
|
if($month == 1) {
|
|
return array(12, $year - 1);
|
|
}
|
|
else {
|
|
return array($month - 1, $year);
|
|
}
|
|
}
|
|
|
|
function calendar_events_by_day($events, $month, $year, &$eventsbyday, &$durationbyday, &$typesbyday) {
|
|
$eventsbyday = array();
|
|
$typesbyday = array();
|
|
$durationbyday = array();
|
|
|
|
if($events === false) {
|
|
return;
|
|
}
|
|
|
|
foreach($events as $event) {
|
|
|
|
$startdate = usergetdate($event->timestart);
|
|
$enddate = usergetdate($event->timestart + $event->timeduration);
|
|
|
|
// Simple arithmetic: $year * 13 + $month is a distinct integer for each distinct ($year, $month) pair
|
|
if(!($startdate['year'] * 13 + $startdate['mon'] >= $year * 13 + $month) && ($enddate['year'] * 13 + $enddate['mon'] <= $year * 13 + $month)) {
|
|
// Out of bounds
|
|
continue;
|
|
}
|
|
|
|
$eventdaystart = intval($startdate['mday']);
|
|
|
|
if($startdate['mon'] == $month && $startdate['year'] == $year) {
|
|
// Give the event to its day
|
|
$eventsbyday[$eventdaystart][] = $event->id;
|
|
|
|
// Mark the day as having such an event
|
|
if($event->courseid == 1 && $event->groupid == 0) {
|
|
$typesbyday[$eventdaystart]['startglobal'] = true;
|
|
}
|
|
else if($event->courseid > 1 && $event->groupid == 0) {
|
|
$typesbyday[$eventdaystart]['startcourse'] = true;
|
|
}
|
|
else if($event->groupid) {
|
|
$typesbyday[$eventdaystart]['startgroup'] = true;
|
|
}
|
|
else if($event->userid) {
|
|
$typesbyday[$eventdaystart]['startuser'] = true;
|
|
}
|
|
}
|
|
|
|
if($event->timeduration == 0) {
|
|
// Proceed with the next
|
|
continue;
|
|
}
|
|
|
|
// The event starts on $month $year or before. So...
|
|
$lowerbound = $startdate['mon'] == $month && $startdate['year'] == $year ? intval($startdate['mday']) : 1;
|
|
|
|
// Also, it ends on $month $year or later...
|
|
$upperbound = $enddate['mon'] == $month && $enddate['year'] == $year ? intval($enddate['mday']) : calendar_days_in_month($month, $year);
|
|
|
|
// Mark all days between $lowerbound and $upperbound (inclusive) as duration
|
|
for($i = $lowerbound + 1; $i <= $upperbound; ++$i) {
|
|
$durationbyday[$i][] = $event->id;
|
|
if($event->courseid == 1 && $event->groupid == 0) {
|
|
$typesbyday[$i]['durationglobal'] = true;
|
|
}
|
|
else if($event->courseid > 1 && $event->groupid == 0) {
|
|
$typesbyday[$i]['durationcourse'] = true;
|
|
}
|
|
else if($event->groupid) {
|
|
$typesbyday[$i]['durationgroup'] = true;
|
|
}
|
|
else if($event->userid) {
|
|
$typesbyday[$i]['durationuser'] = true;
|
|
}
|
|
}
|
|
|
|
}
|
|
return;
|
|
}
|
|
|
|
function calendar_get_module_cached(&$coursecache, $modulename, $instance, $courseid) {
|
|
$module = get_coursemodule_from_instance($modulename, $instance, $courseid);
|
|
|
|
if($module === false) return false;
|
|
if(!calendar_get_course_cached($coursecache, $courseid)) {
|
|
return false;
|
|
}
|
|
return $module;
|
|
}
|
|
|
|
function calendar_get_course_cached(&$coursecache, $courseid) {
|
|
if(!isset($coursecache[$courseid])) {
|
|
$coursecache[$courseid] = get_record('course', 'id', $courseid);
|
|
}
|
|
return $coursecache[$courseid];
|
|
}
|
|
|
|
function calendar_session_vars() {
|
|
global $SESSION, $USER;
|
|
|
|
if(!isset($SESSION->cal_course_referer)) {
|
|
$SESSION->cal_course_referer = 0;
|
|
}
|
|
if(!isset($SESSION->cal_show_global)) {
|
|
$SESSION->cal_show_global = true;
|
|
}
|
|
if(!isset($SESSION->cal_show_groups)) {
|
|
$SESSION->cal_show_groups = true;
|
|
}
|
|
if(!isset($SESSION->cal_show_course)) {
|
|
$SESSION->cal_show_course = true;
|
|
}
|
|
if(!isset($SESSION->cal_show_user)) {
|
|
$SESSION->cal_show_user = true;
|
|
}
|
|
if(empty($SESSION->cal_courses_shown)) {
|
|
$SESSION->cal_courses_shown = calendar_get_default_courses(true);
|
|
}
|
|
if(empty($SESSION->cal_users_shown)) {
|
|
// The empty() instead of !isset() here makes a whole world of difference,
|
|
// as it will automatically change to the user's id when the user first logs
|
|
// in. With !isset(), it would never do that.
|
|
$SESSION->cal_users_shown = isset($USER->id) ? $USER->id : false;
|
|
}
|
|
else if(is_numeric($SESSION->cal_users_shown) && !empty($USER->id) && $SESSION->cal_users_shown != $USER->id) {
|
|
// Follow the white rabbit, for example if a teacher logs in as a student
|
|
$SESSION->cal_users_shown = $USER->id;
|
|
}
|
|
}
|
|
|
|
function calendar_overlib_html() {
|
|
global $CFG;
|
|
|
|
$html = '';
|
|
$html .= '<div id="overDiv" style="position: absolute; visibility: hidden; z-index:1000;"></div>';
|
|
$html .= '<script type="text/javascript" src="'.CALENDAR_URL.'overlib.cfg.php"></script>';
|
|
|
|
return $html;
|
|
}
|
|
|
|
function calendar_set_referring_course($courseid) {
|
|
global $SESSION;
|
|
$SESSION->cal_course_referer = intval($courseid);
|
|
}
|
|
|
|
function calendar_set_filters(&$courses, &$group, &$user, $courseeventsfrom = NULL, $groupeventsfrom = NULL, $ignorefilters = false) {
|
|
global $SESSION, $USER;
|
|
|
|
// Insidious bug-wannabe: setting $SESSION->cal_courses_shown to $course->id would cause
|
|
// the code to function incorrectly UNLESS we convert it to an integer. One case where
|
|
// PHP's loose type system works against us.
|
|
if(is_string($SESSION->cal_courses_shown)) {
|
|
$SESSION->cal_courses_shown = intval($SESSION->cal_courses_shown);
|
|
}
|
|
|
|
if($courseeventsfrom === NULL) {
|
|
$courseeventsfrom = $SESSION->cal_courses_shown;
|
|
}
|
|
if($groupeventsfrom === NULL) {
|
|
$groupeventsfrom = $SESSION->cal_courses_shown;
|
|
}
|
|
|
|
if(($SESSION->cal_show_course && $SESSION->cal_show_global) || $ignorefilters) {
|
|
if(is_int($courseeventsfrom)) {
|
|
$courses = array(1, $courseeventsfrom);
|
|
}
|
|
else if(is_array($courseeventsfrom)) {
|
|
$courses = array_keys($courseeventsfrom);
|
|
$courses[] = 1;
|
|
}
|
|
}
|
|
else if($SESSION->cal_show_course) {
|
|
if(is_int($courseeventsfrom)) {
|
|
$courses = array($courseeventsfrom);
|
|
}
|
|
else if(is_array($courseeventsfrom)) {
|
|
$courses = array_keys($courseeventsfrom);
|
|
}
|
|
$courses = array_diff($courses, array(1));
|
|
}
|
|
else if($SESSION->cal_show_global) {
|
|
$courses = array(1);
|
|
}
|
|
else {
|
|
$courses = false;
|
|
}
|
|
|
|
if($SESSION->cal_show_user || $ignorefilters) {
|
|
// This doesn't work for arrays yet (maybe someday it will)
|
|
$user = $SESSION->cal_users_shown;
|
|
}
|
|
else {
|
|
$user = false;
|
|
}
|
|
if($SESSION->cal_show_groups || $ignorefilters) {
|
|
if(is_int($groupeventsfrom)) {
|
|
$groupcourses = array($groupeventsfrom);
|
|
}
|
|
else if(is_array($groupeventsfrom)) {
|
|
$groupcourses = array_keys($groupeventsfrom);
|
|
}
|
|
$grouparray = array();
|
|
|
|
// We already have the courses to examine in $courses
|
|
// For each course...
|
|
foreach($groupcourses as $courseid) {
|
|
// If the user is an editing teacher in there,
|
|
if(!empty($USER) && isteacheredit($courseid, $USER->id)) {
|
|
// Show events from all groups
|
|
if(($grouprecords = get_groups($courseid)) !== false) {
|
|
$grouparray = array_merge($grouparray, array_keys($grouprecords));
|
|
}
|
|
}
|
|
// Otherwise show events from the group he is a member of
|
|
else if(isset($USER->groupmember[$courseid])) {
|
|
$grouparray[] = $USER->groupmember[$courseid];
|
|
}
|
|
}
|
|
if(empty($grouparray)) {
|
|
$group = false;
|
|
}
|
|
else {
|
|
$group = $grouparray;
|
|
}
|
|
}
|
|
else {
|
|
$group = false;
|
|
}
|
|
}
|
|
|
|
function calendar_edit_event_allowed($event) {
|
|
global $USER;
|
|
|
|
if(empty($USER) || isguest($USER->id)) {
|
|
return false;
|
|
}
|
|
|
|
if (isadmin($USER->id)) return true; // Admins are allowed anything
|
|
|
|
if ($event->courseid > 1) {
|
|
// Course event, only editing teachers may... edit :P
|
|
if(isteacheredit($event->courseid)) {
|
|
return true;
|
|
}
|
|
|
|
} else if($event->courseid == 0 && $event->groupid != 0) {
|
|
// Group event
|
|
$group = get_record('groups', 'id', $event->groupid);
|
|
if($group === false) return false;
|
|
if(isteacheredit($group->courseid)) {
|
|
return true;
|
|
}
|
|
|
|
} else if($event->courseid == 0 && $event->groupid == 0 && $event->userid == $USER->id) {
|
|
// User event, owned by this user
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function calendar_get_default_courses($ignoreref = false) {
|
|
global $USER, $CFG, $SESSION;
|
|
|
|
if(!empty($SESSION->cal_course_referer) && !$ignoreref) {
|
|
return array($SESSION->cal_course_referer => 1);
|
|
}
|
|
|
|
if(empty($USER)) {
|
|
return array();
|
|
}
|
|
|
|
$courses = array();
|
|
if(isadmin($USER->id)) {
|
|
$courses = get_records_sql('SELECT id, 1 FROM '.$CFG->prefix.'course');
|
|
return $courses;
|
|
}
|
|
if(isset($USER->student) && is_array($USER->student)) {
|
|
$courses = $USER->student + $courses;
|
|
}
|
|
if(isset($USER->teacher) && is_array($USER->teacher)) {
|
|
$courses = $USER->teacher + $courses;
|
|
}
|
|
return $courses;
|
|
}
|
|
|
|
function calendar_get_tz_offset() {
|
|
global $USER, $CFG;
|
|
static $tzfix;
|
|
|
|
// Caching
|
|
if(isset($tzfix)) {
|
|
return $tzfix;
|
|
}
|
|
|
|
if(empty($USER)) {
|
|
// Don't forget that there are users which have NOT logged in, even as guests
|
|
$timezone = $CFG->timezone;
|
|
}
|
|
else {
|
|
// If, on the other hand, we do have a user...
|
|
$timezone = $USER->timezone;
|
|
if(abs($timezone > 13)) {
|
|
// But if the user has specified 'server default' time,
|
|
// don't get the server's; get the Moodle $CFG setting
|
|
// (Martin's help text on site cfg implies this)
|
|
$timezone = $CFG->timezone;
|
|
}
|
|
}
|
|
|
|
if(abs($timezone) <= 13) {
|
|
$tzfix = $timezone * 3600;
|
|
}
|
|
else {
|
|
$tzfix = date('Z');
|
|
}
|
|
|
|
return $tzfix;
|
|
}
|
|
|
|
function calendar_preferences_array() {
|
|
return array(
|
|
'startwday' => get_string('pref_startwday', 'calendar'),
|
|
'maxevents' => get_string('pref_maxevents', 'calendar'),
|
|
'lookahead' => get_string('pref_lookahead', 'calendar'),
|
|
'timeformat' => get_string('pref_timeformat', 'calendar'),
|
|
);
|
|
}
|
|
|
|
function calendar_preferences_button() {
|
|
global $CFG, $USER;
|
|
|
|
// Guests have no preferences
|
|
if (empty($USER->id) || isguest()) {
|
|
return '';
|
|
}
|
|
|
|
return "<form target=\"$CFG->framename\" method=\"get\" ".
|
|
" action=\"$CFG->wwwroot/calendar/preferences.php\">".
|
|
"<input type=\"submit\" value=\"".get_string("preferences", "calendar")." ...\" /></form>";
|
|
}
|
|
|
|
if(!function_exists('array_diff_assoc')) {
|
|
// PHP < 4.3.0
|
|
function array_diff_assoc($source, $diff) {
|
|
$res = $source;
|
|
foreach ($diff as $key=>$data) {
|
|
unset($res[$key]);
|
|
}
|
|
return $res;
|
|
}
|
|
}
|
|
|
|
?>
|