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<?php // $Id$
/////////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Calendar extension //
// //
// Copyright (C) 2003-2004 Greek School Network www.sch.gr //
// //
// Designed by: //
// Avgoustos Tsinakos (tsinakos@uom.gr) //
// Jon Papaioannou (pj@uom.gr) //
// //
// Programming and development: //
// Jon Papaioannou (pj@uom.gr) //
// //
// For bugs, suggestions, etc contact: //
// Jon Papaioannou (pj@uom.gr) //
// //
// The current module was developed at the University of Macedonia //
// (www.uom.gr) under the funding of the Greek School Network (www.sch.gr) //
// The aim of this project is to provide additional and improved //
// functionality to the Asynchronous Distance Education service that the //
// Greek School Network deploys. //
// //
// 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. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
/////////////////////////////////////////////////////////////////////////////
// Display the calendar page.
require_once('../config.php');
require_once($CFG->dirroot.'/course/lib.php');
require_once($CFG->dirroot.'/calendar/lib.php');
optional_variable($_GET['course'], 0);
if(!$site = get_site()) {
redirect($CFG->wwwroot.'/'.$CFG->admin.'/index.php');
}
//add_to_log($course->id, "course", "view", "view.php?id=$course->id", "$course->id");
$now = usergetdate(time());
$pagetitle = '';
$nav = calendar_get_link_tag(get_string('calendar', 'calendar'), CALENDAR_URL.'view.php?view=upcoming&amp;', $now['mday'], $now['mon'], $now['year']);
optional_param('view', 'upcoming');
optional_param('cal_d', 0, PARAM_INT);
optional_param('cal_m', 0, PARAM_INT);
optional_param('cal_y', 0, PARAM_INT);
$day = $cal_d;
$mon = $cal_m;
$yr = $cal_y;
if(!checkdate($mon, $day, $yr)) {
$day = intval($now['mday']);
$mon = intval($now['mon']);
$yr = intval($now['year']);
}
$time = mktime(0, 0, 0, $mon, $day, $yr);
switch($view) {
case 'day':
$text = strftime(get_string('strftimedate'), $time);
if($text[0] == '0') {
$text = substr($text, 1);
}
$nav .= ' -> '.$text;
$pagetitle = get_string('dayview', 'calendar');
break;
case 'month':
$nav .= ' -> '.strftime(get_string('strftimemonthyear'), $time);
$pagetitle = get_string('detailedmonthview', 'calendar');
break;
case 'upcoming':
$pagetitle = get_string('upcomingevents', 'calendar');
break;
}
// If a course has been supplied in the URL, change the filters to show that one
if (!empty($_GET['course'])) {
if (is_numeric($_GET['course']) && $_GET['course'] > 0 && record_exists('course', 'id', $_GET['course'])) {
if ($_GET['course'] == 1) {
// If coming from the home page, show all courses
$SESSION->cal_courses_shown = calendar_get_default_courses(true);
calendar_set_referring_course(0);
} else {
// Otherwise show just this one
$SESSION->cal_courses_shown = intval($_GET['course']);
calendar_set_referring_course($SESSION->cal_courses_shown);
}
}
}
if (empty($USER->id) or isguest()) {
$defaultcourses = calendar_get_default_courses();
calendar_set_filters($courses, $groups, $users, $defaultcourses, $defaultcourses);
} else {
calendar_set_filters($courses, $groups, $users);
}
// Let's see if we are supposed to provide a referring course link
// but NOT for the "main page" course
if ($SESSION->cal_course_referer > 1 &&
($shortname = get_field('course', 'shortname', 'id', $SESSION->cal_course_referer)) !== false) {
// If we know about the referring course, show a return link and ALSO require login!
require_login();
$nav = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$SESSION->cal_course_referer.'">'.$shortname.'</a> -> '.$nav;
}
$strcalendar = get_string('calendar', 'calendar');
$prefsbutton = calendar_preferences_button();
// Print title and header
print_header("$site->shortname: $strcalendar: $pagetitle", $strcalendar, $nav,
'', '', true, $prefsbutton, '<p class="logininfo">'.user_login_string($site).'</p>');
echo calendar_overlib_html();
// Layout the whole page as three big columns.
echo '<table border="0" cellpadding="3" cellspacing="0" width="100%">';
echo '<tr style="vertical-align: top;">';
// START: Main column
echo '<td style="vertical-align: top; width: 100%;">';
switch($view) {
case 'day':
calendar_show_day($day, $mon, $yr, $courses, $groups, $users);
break;
case 'month':
calendar_show_month_detailed($mon, $yr, $courses, $groups, $users);
break;
case 'upcoming':
calendar_show_upcoming_events($courses, $groups, $users, get_user_preferences('calendar_lookahead', CALENDAR_UPCOMING_DAYS), get_user_preferences('calendar_maxevents', CALENDAR_UPCOMING_MAXEVENTS));
break;
}
echo '</td>';
// END: Main column
// START: Last column (3-month display)
echo '<td style="vertical-align: top; width: 180px;">';
print_side_block_start(get_string('monthlyview', 'calendar'));
list($prevmon, $prevyr) = calendar_sub_month($mon, $yr);
list($nextmon, $nextyr) = calendar_add_month($mon, $yr);
$getvars = 'cal_d='.$day.'&amp;cal_m='.$mon.'&amp;cal_y='.$yr; // For filtering
echo calendar_filter_controls($view, $getvars);
echo '<p>';
echo calendar_top_controls('display', array('m' => $prevmon, 'y' => $prevyr));
echo calendar_get_mini($courses, $groups, $users, $prevmon, $prevyr);
echo '</p><p>';
echo calendar_top_controls('display', array('m' => $mon, 'y' => $yr));
echo calendar_get_mini($courses, $groups, $users, $mon, $yr);
echo '</p><p>';
echo calendar_top_controls('display', array('m' => $nextmon, 'y' => $nextyr));
echo calendar_get_mini($courses, $groups, $users, $nextmon, $nextyr);
echo '</p>';
print_side_block_end();
print_spacer(1, 180);
echo '</td>';
echo '</tr></table>';
print_footer();
function calendar_show_day($d, $m, $y, $courses, $groups, $users) {
global $CFG, $THEME, $USER;
if (!checkdate($m, $d, $y)) {
$now = usergetdate(time());
list($d, $m, $y) = array(intval($now['mday']), intval($now['mon']), intval($now['year']));
}
$getvars = 'from=day&amp;cal_d='.$d.'&amp;cal_m='.$m.'&amp;cal_y='.$y; // For filtering
$starttime = make_timestamp($y, $m, $d);
$endtime = make_timestamp($y, $m, $d + 1) - 1;
$events = calendar_get_upcoming($courses, $groups, $users, 1, 100, $starttime);
// New event button
if (empty($USER->id) || isguest()) {
$text = get_string('dayview', 'calendar').': '.calendar_course_filter_selector($getvars);
} else {
$text = '<div style="float: left;">'.get_string('dayview', 'calendar').': '.
calendar_course_filter_selector($getvars).'</div><div style="float: right;">';
$text.= '<form style="display: inline;" action="'.CALENDAR_URL.'event.php" method="get">';
$text.= '<input type="hidden" name="action" value="new" />';
$text.= '<input type="hidden" name="cal_d" value="'.$d.'" />';
$text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
$text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
$text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
$text.= '</form></div>';
}
print_side_block_start($text, array('class' => 'mycalendar'));
echo '<p>'.calendar_top_controls('day', array('d' => $d, 'm' => $m, 'y' => $y)).'</p>';
if (empty($events)) {
// There is nothing to display today.
echo '<p style="text-align: center;">'.get_string('daywithnoevents', 'calendar').'</p>';
} else {
$underway = array();
// First, print details about events that start today
foreach ($events as $event) {
if ($event->timestart >= $starttime && $event->timestart <= $endtime) { // Print it now
/*
$dayend = calendar_day_representation($event->timestart + $event->timeduration);
$timeend = calendar_time_representation($event->timestart + $event->timeduration);
$enddate = usergetdate($event->timestart + $event->timeduration);
// Set printable representation
echo calendar_get_link_tag($dayend, CALENDAR_URL.'view.php?view=day'.$morehref.'&amp;', $enddate['mday'], $enddate['mon'], $enddate['year']).' ('.$timeend.')';
*/
//unset($event->time);
$event->time = calendar_format_event_time($event, time(), '', false);
calendar_print_event($event);
} else { // Save this for later
$underway[] = $event;
}
}
// Then, show a list of all events that just span this day
if (!empty($underway)) {
echo '<p style="text-align: center;"><strong>'.get_string('spanningevents', 'calendar').':</strong></p>';
foreach ($underway as $event) {
$event->time = calendar_format_event_time($event, time(), '', false);
calendar_print_event($event);
}
}
}
print_side_block_end();
}
function calendar_show_month_detailed($m, $y, $courses, $groups, $users) {
global $CFG, $SESSION, $USER;
global $day, $mon, $yr;
$getvars = 'from=month&amp;cal_d='.$day.'&amp;cal_m='.$mon.'&amp;cal_y='.$yr; // For filtering
$display = &New stdClass;
$display->minwday = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
$display->maxwday = $display->minwday + 6;
if(!empty($m) && !empty($y)) {
$thisdate = usergetdate(time()); // Time and day at the user's location
if($m == $thisdate['mon'] && $y == $thisdate['year']) {
// Navigated to this month
$date = $thisdate;
$display->thismonth = true;
}
else {
// Navigated to other month, let's do a nice trick and save us a lot of work...
if(!checkdate($m, 1, $y)) {
$date = array('mday' => 1, 'mon' => $thisdate['mon'], 'year' => $thisdate['year']);
$display->thismonth = true;
}
else {
$date = array('mday' => 1, 'mon' => $m, 'year' => $y);
$display->thismonth = false;
}
}
}
else {
$date = usergetdate(time());
$display->thismonth = true;
}
// Fill in the variables we 're going to use, nice and tidy
list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']); // This is what we want to display
$display->maxdays = calendar_days_in_month($m, $y);
// We 'll keep these values as GMT here, and offset them when the time comes to query the db
$display->tstart = gmmktime(0, 0, 0, $m, 1, $y); // This is GMT
$display->tend = gmmktime(23, 59, 59, $m, $display->maxdays, $y); // GMT
$startwday = gmdate('w', $display->tstart); // $display->tstart is already GMT, so don't use date(): messes with server's TZ
// Align the starting weekday to fall in our display range
if($startwday < $display->minwday) {
$startwday += 7;
}
// Get events from database
$whereclause = calendar_sql_where(usertime($display->tstart), usertime($display->tend), $users, $groups, $courses);
if($whereclause === false) {
$events = array();
}
else {
$events = get_records_select('event', $whereclause, 'timestart');
}
// Extract information: events vs. time
calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday);
// New event button
if(empty($USER->id) || isguest()) {
$text = get_string('detailedmonthview', 'calendar').': '.calendar_course_filter_selector($getvars);
}
else {
$text = '<div style="float: left;">'.get_string('detailedmonthview', 'calendar').': '.calendar_course_filter_selector($getvars).'</div><div style="float: right;">';
$text.= '<form style="display: inline;" action="'.CALENDAR_URL.'event.php" method="get">';
$text.= '<input type="hidden" name="action" value="new" />';
$text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
$text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
$text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
$text.= '</form></div>';
}
print_side_block_start($text, array('class' => 'mycalendar'));
echo calendar_top_controls('month', array('m' => $m, 'y' => $y));
// Start calendar display
echo '<table class="calendarmonth"><thead><tr>'; // Begin table. First row: day names
// Print out the names of the weekdays
$days = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
for($i = $display->minwday; $i <= $display->maxwday; ++$i) {
// This uses the % operator to get the correct weekday no matter what shift we have
// applied to the $display->minwday : $display->maxwday range from the default 0 : 6
echo '<td class="calendarheader">'.get_string($days[$i % 7], 'calendar').'</td>';
}
echo '</tr></thead><tbody><tr>'; // End of day names; prepare for day numbers
// For the table display. $week is the row; $dayweek is the column.
$week = 1;
$dayweek = $startwday;
// Paddding (the first week may have blank days in the beginning)
for($i = $display->minwday; $i < $startwday; ++$i) {
echo '<td>&nbsp;</td>'."\n";
}
// Now display all the calendar
for($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
if($dayweek > $display->maxwday) {
// We need to change week (table row)
echo "</tr>\n<tr>";
$dayweek = $display->minwday;
++$week;
}
// Reset vars
$cell = '';
$dayhref = calendar_get_link_href(CALENDAR_URL.'view.php?view=day&amp;', $day, $m, $y);
if($dayweek % 7 == 0 || $dayweek % 7 == 6) {
// Weekend. This is true no matter what the exact range is.
$class = 'cal_weekend';
}
else {
// Normal working day.
$class = '';
}
// Special visual fx if an event is defined
if(isset($eventsbyday[$day])) {
if(isset($typesbyday[$day]['startglobal'])) {
$class .= ' cal_event_global';
}
else if(isset($typesbyday[$day]['startcourse'])) {
$class .= ' cal_event_course';
}
else if(isset($typesbyday[$day]['startgroup'])) {
$class .= ' cal_event_group';
}
else if(isset($typesbyday[$day]['startuser'])) {
$class .= ' cal_event_user';
}
if(count($eventsbyday[$day]) == 1) {
$title = get_string('oneevent', 'calendar');
}
else {
$title = get_string('manyevents', 'calendar', count($eventsbyday[$day]));
}
$cell = '<strong><a href="'.$dayhref.'" title="'.$title.'">'.$day.'</a></strong>';
}
else {
$cell = $day;
}
// Special visual fx if an event spans many days
if(isset($typesbyday[$day]['durationglobal'])) {
$class .= ' cal_duration_global';
}
else if(isset($typesbyday[$day]['durationcourse'])) {
$class .= ' cal_duration_course';
}
else if(isset($typesbyday[$day]['durationgroup'])) {
$class .= ' cal_duration_group';
}
else if(isset($typesbyday[$day]['durationuser'])) {
$class .= ' cal_duration_user';
}
// Special visual fx for today
if($display->thismonth && $day == $d) {
$class .= ' cal_today';
}
// Just display it
if(!empty($class)) {
$class = ' class="'.trim($class).'"';
}
echo '<td'.$class.'>'.$cell;
if(isset($eventsbyday[$day])) {
echo '<table>';
foreach($eventsbyday[$day] as $eventindex) {
echo '<tr><td style="vertical-align: top; width: 10px;"><strong>&middot;</strong></td>';
echo '<td style="width: 100%;"><a href="'.$dayhref.'">'.$events[$eventindex]->name.'</a></td></tr>';
}
echo '</table>';
}
if(isset($durationbyday[$day])) {
foreach($durationbyday[$day] as $eventindex) {
echo '<div class="dimmed_text">('.$events[$eventindex]->name.')</div>';
}
}
echo "</td>\n";
}
// Paddding (the last week may have blank days at the end)
for($i = $dayweek; $i <= $display->maxwday; ++$i) {
echo '<td>&nbsp;</td>';
}
echo "</tr>\n</tbody>\n"; // Last row ends
echo "</table>\n<br />\n"; // Tabular display of days ends
// OK, now for the filtering display
echo '<table class="cal_filters">';
echo '<tbody>';
echo '<tr>';
// Global events
if($SESSION->cal_show_global) {
echo '<td class="cal_event_global" style="width: 8px;"></td><td><strong>'.get_string('globalevents', 'calendar').':</strong> ';
echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showglobal&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
}
else {
echo '<td style="width: 8px;"></td><td><strong>'.get_string('globalevents', 'calendar').':</strong> ';
echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showglobal&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
}
// Course events
if(!empty($SESSION->cal_show_course)) {
echo '<td class="cal_event_course" style="width: 8px;"></td><td><strong>'.get_string('courseevents', 'calendar').':</strong> ';
echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showcourses&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
}
else {
echo '<td style="width: 8px;"></td><td><strong>'.get_string('courseevents', 'calendar').':</strong> ';
echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showcourses&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
}
echo "</tr>\n";
if(!empty($USER->id) && !isguest()) {
echo '<tr>';
// Group events
if($SESSION->cal_show_groups) {
echo '<td class="cal_event_group" style="width: 8px;"></td><td><strong>'.get_string('groupevents', 'calendar').':</strong> ';
echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showgroups&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
}
else {
echo '<td style="width: 8px;"></td><td><strong>'.get_string('groupevents', 'calendar').':</strong> ';
echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showgroups&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
}
// User events
if($SESSION->cal_show_user) {
echo '<td class="cal_event_user" style="width: 8px;"></td><td><strong>'.get_string('userevents', 'calendar').':</strong> ';
echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showuser&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
}
else {
echo '<td style="width: 8px;"></td><td><strong>'.get_string('userevents', 'calendar').':</strong> ';
echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showuser&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
}
echo "</tr>\n";
}
echo '<tbody></table><br />';
print_side_block_end();
}
function calendar_show_upcoming_events($courses, $groups, $users, $futuredays, $maxevents) {
global $USER;
$events = calendar_get_upcoming($courses, $groups, $users, $futuredays, $maxevents);
// New event button
if(empty($USER->id) || isguest()) {
$text = get_string('upcomingevents', 'calendar').': '.calendar_course_filter_selector('from=upcoming');
} else {
$text = '<div style="float: left;">'.get_string('upcomingevents', 'calendar').': '.calendar_course_filter_selector('from=upcoming').'</div><div style="float: right;">';
$text.= '<form style="display: inline;" action="'.CALENDAR_URL.'event.php" method="get">';
$text.= '<input type="hidden" name="action" value="new" />';
/*
$text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
$text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
*/
$text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
$text.= '</form></div>';
}
print_side_block_start($text, array('class' => 'mycalendar'));
if ($events) {
foreach ($events as $event) {
calendar_print_event($event);
}
} else {
echo '<br />';
print_heading(get_string('noupcomingevents', 'calendar'));
}
print_side_block_end();
}
function calendar_print_event($event) {
global $CFG, $THEME, $USER;
static $strftimetime;
echo '<table border="0" cellpadding="3" cellspacing="0" class="eventfull" width="100%">';
echo "<tr><td bgcolor=\"$THEME->cellcontent2\" class=\"eventfullpicture\" width=\"32\" valign=\"top\">";
if (!empty($event->icon)) {
echo $event->icon;
} else {
print_spacer(16,16);
}
echo '</td>';
echo "<td bgcolor=\"$THEME->cellheading\" class=\"eventfullheader\" width=\"100%\">";
if (!empty($event->referer)) {
echo '<span style="float:left;" class="calendarreferer">'.$event->referer.' </span>';
} else {
echo '<span style="float:left;" class="cal_event">'.$event->name."</span>";
}
if (!empty($event->courselink)) {
echo '<br /><span style="float:left; font-size: 0.8em;">'.$event->courselink.' </span>';
}
if (!empty($event->time)) {
echo '<span style="float:right;" class="cal_event_date">'.$event->time.'</span>';
} else {
echo '<span style="float:right;" class="cal_event_date">'.calendar_time_representation($event->timestart).'</span>';
}
echo "</td></tr>";
echo "<tr><td bgcolor=\"$THEME->cellcontent2\" valign=\"top\" class=\"eventfullside\" width=\"32\">&nbsp;</td>";
echo "<td bgcolor=\"$THEME->cellcontent\" class=\"eventfullmessage\">\n";
echo format_text($event->description, FORMAT_HTML);
if (calendar_edit_event_allowed($event)) {
echo '<div align="right">';
if (empty($event->cmid)) {
$editlink = CALENDAR_URL.'event.php?action=edit&amp;id='.$event->id;
$deletelink = CALENDAR_URL.'event.php?action=delete&amp;id='.$event->id;
} else {
$editlink = $CFG->wwwroot.'/course/mod.php?update='.$event->cmid.'&amp;return=true&amp;sesskey='.$USER->sesskey;
$deletelink = $CFG->wwwroot.'/course/mod.php?delete='.$event->cmid.'&amp;sesskey='.$USER->sesskey;;
}
echo ' <a href="'.$editlink.'"><img
src="'.$CFG->pixpath.'/t/edit.gif" alt="'.get_string('tt_editevent', 'calendar').'"
title="'.get_string('tt_editevent', 'calendar').'" /></a>';
echo ' <a href="'.$deletelink.'"><img
src="'.$CFG->pixpath.'/t/delete.gif" alt="'.get_string('tt_deleteevent', 'calendar').'"
title="'.get_string('tt_deleteevent', 'calendar').'" /></a>';
echo '</div>';
}
echo "</td></tr>\n</table><br />\n\n";
}
function calendar_course_filter_selector($getvars = '') {
global $USER, $SESSION;
if (empty($USER->id) or isguest()) {
return '';
}
if (isadmin()) {
$courses = get_courses('all', 'c.shortname','c.id,c.shortname');
} else {
$courses = get_my_courses($USER->id, 'shortname');
}
unset($courses[1]);
$courseoptions[1] = get_string('fulllistofcourses');
foreach ($courses as $course) {
$courseoptions[$course->id] = $course->shortname;
}
if (is_numeric($SESSION->cal_courses_shown)) {
$selected = $SESSION->cal_courses_shown;
} else {
$selected = '';
}
$form = popup_form(CALENDAR_URL.'set.php?var=setcourse&amp;'.$getvars.'&amp;id=',
$courseoptions, 'cal_course_flt', $selected, '', '', '', true);
return str_replace('<form', '<form style="display: inline;"', $form);
}
?>
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