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moodle/calendar/event.php
defacer b1295c5e21 Random refinements.
2004-05-17 08:54:23 +00:00

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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 //
// //
/////////////////////////////////////////////////////////////////////////////
require_once('../config.php');
require_once('lib.php');
require_once('../course/lib.php');
require_once('../mod/forum/lib.php');
require_login();
if(isguest()) {
// Guests cannot do anything with events
redirect(CALENDAR_URL.'view.php?view=upcoming');
}
require_variable($_REQUEST['action']);
optional_variable($_REQUEST['id']);
$_REQUEST['id'] = intval($_REQUEST['id']); // Always a good idea, against SQL injections
if(!$site = get_site()) {
redirect($CFG->wwwroot.'/'.$CFG->admin.'/index.php');
}
$now = usergetdate(time());
$nav = calendar_get_link_tag(get_string('calendar', 'calendar'), CALENDAR_URL.'view.php?view=upcoming&amp;', $now['mday'], $now['mon'], $now['year']);
$day = intval($now['mday']);
$mon = intval($now['mon']);
$yr = intval($now['year']);
if ($usehtmleditor = can_use_richtext_editor()) {
$defaultformat = FORMAT_HTML;
} else {
$defaultformat = FORMAT_MOODLE;
}
switch($_REQUEST['action']) {
case 'delete':
$title = get_string('deleteevent', 'calendar');
$event = get_record('event', 'id', $_REQUEST['id']);
if($event === false) {
error('Invalid event');
}
if(!calendar_edit_event_allowed($event)) {
error('You are not authorized to do this');
}
break;
case 'edit':
$title = get_string('editevent', 'calendar');
$event = get_record('event', 'id', $_REQUEST['id']);
if($event === false) {
error('Invalid event');
}
if(!calendar_edit_event_allowed($event)) {
error('You are not authorized to do this');
}
if($form = data_submitted()) {
$form->name = strip_tags($form->name); // Strip all tags
$form->description = clean_text($form->description , $form->format); // Clean up any bad tags
$form->timestart = make_timestamp($form->startyr, $form->startmon, $form->startday, $form->starthr, $form->startmin);
if($form->duration == 1) {
$form->timeduration = make_timestamp($form->endyr, $form->endmon, $form->endday, $form->endhr, $form->endmin) - $form->timestart;
if($form->timeduration < 0) {
$form->timeduration = 0;
}
}
else {
$form->timeduration = 0;
}
validate_form($form, $err);
if (count($err) == 0) {
$form->timemodified = time();
update_record('event', $form);
/// Log the event update.
add_to_log($form->courseid, 'calendar', 'edit', 'event.php?action=edit&amp;id='.$form->id, $form->name);
// OK, now redirect to day view
redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$form->startday.'&cal_m='.$form->startmon.'&cal_y='.$form->startyr);
}
else {
foreach ($err as $key => $value) {
$focus = 'form.'.$key;
}
}
}
break;
case 'new':
$title = get_string('newevent', 'calendar');
$form = data_submitted();
if(!empty($form) && $form->type == 'defined') {
$form->name = strip_tags($form->name); // Strip all tags
$form->description = clean_text($form->description , $form->format); // Clean up any bad tags
$form->timestart = make_timestamp($form->startyr, $form->startmon, $form->startday, $form->starthr, $form->startmin);
if($form->duration == 1) {
$form->timeduration = make_timestamp($form->endyr, $form->endmon, $form->endday, $form->endhr, $form->endmin) - $form->timestart;
if($form->timeduration < 0) {
$form->timeduration = 0;
}
}
else if ($form->duration == 2) {
$form->timeduration = $form->minutes * 60;
}
else {
$form->timeduration = 0;
}
if(!calendar_add_event_allowed($form->courseid, $form->groupid, $form->userid)) {
error('You are not authorized to do this');
}
validate_form($form, $err);
if (count($err) == 0) {
$form->timemodified = time();
/// Get the event id for the log record.
$eventid = insert_record('event', $form, true);
/// Log the event entry.
add_to_log($form->courseid, 'calendar', 'add', 'event.php?action=edit&amp;id='.$eventid, $form->name);
if ($form->repeat) {
for($i = 1; $i < $form->repeats; $i++) {
$form->timestart += 604800; // add one week
/// Get the event id for the log record.
$eventid = insert_record('event', $form, true);
/// Log the event entry.
add_to_log($form->courseid, 'calendar', 'add', 'event.php?action=edit&amp;id='.$eventid, $form->name);
}
}
// OK, now redirect to day view
redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$form->startday.'&cal_m='.$form->startmon.'&cal_y='.$form->startyr);
}
else {
foreach ($err as $key => $value) {
$focus = 'form'.$key;
}
}
}
break;
}
if(empty($focus)) $focus = '';
// Let's see if we are supposed to provide a referring course link
// but NOT for the front page
if (!empty($SESSION->cal_course_referer)) {
if ($course = get_record('course', 'id', $SESSION->cal_course_referer)) {
$shortname = $course->shortname;
$nav = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$SESSION->cal_course_referer.'">'.$shortname.'</a> -> '.$nav;
}
} else {
$nav = '';
}
print_header(get_string('calendar', 'calendar').': '.$title, $site->fullname, $nav.' -> '.$title,
$focus, '', true, '', '<p class="logininfo">'.user_login_string($site).'</p>');
echo '<table border="0" cellpadding="3" cellspacing="0" width="100%"><tr valign="top">';
echo '<td valign="top" width="100%">';
switch($_REQUEST['action']) {
case 'delete':
if($_REQUEST['confirm'] == 1) {
// Kill it and redirect to day view
if(($event = get_record('event', 'id', $_REQUEST['id'])) !== false) {
/// Log the event delete.
delete_records('event', 'id', $_REQUEST['id']);
// pj - fixed the course id problem, but now we have another one:
// what to do with the URL?
add_to_log($event->courseid, 'calendar', 'delete', '', $event->name);
}
if(checkdate($_REQUEST['m'], $_REQUEST['d'], $_REQUEST['y'])) {
// Being a bit paranoid to check this, but it doesn't hurt
redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$_REQUEST['d'].'&cal_m='.$_REQUEST['m'].'&cal_y='.$_REQUEST['y']);
}
else {
// Redirect to now
redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$now['mday'].'&cal_m='.$now['mon'].'&cal_y='.$now['year']);
}
}
else {
$eventtime = usergetdate($event->timestart);
$m = $eventtime['mon'];
$d = $eventtime['mday'];
$y = $eventtime['year'];
// Display confirmation form
print_side_block_start(get_string('deleteevent', 'calendar').': '.$event->name, '', 'mycalendar');
include('event_delete.html');
print_side_block_end();
}
break;
case 'edit':
if(empty($form)) {
$form->name = $event->name;
$form->courseid = $event->courseid; // Not to update, but for date validation
$form->description = $event->description;
$form->timestart = $event->timestart;
$form->timeduration = $event->timeduration;
$form->id = $event->id;
$form->format = $defaultformat;
if($event->timeduration) {
$form->duration = 1;
}
else {
$form->duration = 0;
}
}
print_side_block_start(get_string('editevent', 'calendar'), '', 'mycalendar');
include('event_edit.html');
print_side_block_end();
if ($usehtmleditor) {
use_html_editor();
}
break;
case 'new':
optional_variable($_GET['cal_y']);
optional_variable($_GET['cal_m']);
optional_variable($_GET['cal_d']);
optional_variable($form->timestart, -1);
if($_GET['cal_y'] && $_GET['cal_m'] && $_GET['cal_d'] && checkdate($_GET['cal_m'], $_GET['cal_d'], $_GET['cal_y'])) {
$form->timestart = make_timestamp($_GET['cal_y'], $_GET['cal_m'], $_GET['cal_d'], 0, 0, 0);
}
else if($_GET['cal_y'] && $_GET['cal_m'] && checkdate($_GET['cal_m'], 1, $_GET['cal_y'])) {
if($_GET['cal_y'] == $now['year'] && $_GET['cal_m'] == $now['mon']) {
$form->timestart = make_timestamp($_GET['cal_y'], $_GET['cal_m'], $now['mday'], 0, 0, 0);
}
else {
$form->timestart = make_timestamp($_GET['cal_y'], $_GET['cal_m'], 1, 0, 0, 0);
}
}
if($form->timestart < 0) {
$form->timestart = time();
}
if(!isset($_REQUEST['type'])) {
// We don't know what kind of event we want
calendar_get_allowed_types($allowed);
if(!$allowed->groups && !$allowed->courses && !$allowed->site) {
// Take the shortcut
$_REQUEST['type'] = 'user';
}
else {
$_REQUEST['type'] = 'select';
}
}
$header = '';
switch($_REQUEST['type']) {
case 'user':
$form->name = '';
$form->description = '';
$form->courseid = 0;
$form->groupid = 0;
$form->userid = $USER->id;
$form->modulename = '';
$form->eventtype = '';
$form->instance = 0;
$form->timeduration = 0;
$form->duration = 0;
$header = get_string('typeuser', 'calendar');
break;
case 'group':
optional_variable($_REQUEST['groupid']);
$groupid = $_REQUEST['groupid'];
if(!($group = get_record('groups', 'id', $groupid) )) {
calendar_get_allowed_types($allowed);
$_REQUEST['type'] = 'select';
}
else {
$form->name = '';
$form->description = '';
$form->courseid = $group->courseid;
$form->groupid = $group->id;
$form->userid = $USER->id;
$form->modulename = '';
$form->eventtype = '';
$form->instance = 0;
$form->timeduration = 0;
$form->duration = 0;
$header = get_string('typegroup', 'calendar');
}
break;
case 'course':
optional_variable($_REQUEST['courseid']);
$courseid = $_REQUEST['courseid'];
if(!record_exists('course', 'id', $courseid)) {
calendar_get_allowed_types($allowed);
$_REQUEST['type'] = 'select';
}
else {
$form->name = '';
$form->description = '';
$form->courseid = $courseid;
$form->groupid = 0;
$form->userid = $USER->id;
$form->modulename = '';
$form->eventtype = '';
$form->instance = 0;
$form->timeduration = 0;
$form->duration = 0;
$header = get_string('typecourse', 'calendar');
}
break;
case 'site':
$form->name = '';
$form->description = '';
$form->courseid = 1;
$form->groupid = 0;
$form->userid = $USER->id;
$form->modulename = '';
$form->eventtype = '';
$form->instance = 0;
$form->timeduration = 0;
$form->duration = 0;
$header = get_string('typesite', 'calendar');
break;
case 'defined':
case 'select':
break;
default:
error('Unsupported event type');
}
$form->format = $defaultformat;
if(!empty($header)) {
$header = ' ('.$header.')';
}
print_side_block_start(get_string('newevent', 'calendar').$header, '', 'mycalendar');
if($_REQUEST['type'] == 'select') {
$defaultcourse = $SESSION->cal_course_referer;
if(isteacheredit($defaultcourse, $USER->id)) {
$defaultgroup = 0;
}
else {
$defaultgroup = user_group($defaultcourse, $USER->id);
}
optional_variable($_REQUEST['groupid'], $defaultgroup->id);
optional_variable($_REQUEST['courseid'], $defaultcourse);
$groupid = $_REQUEST['groupid'];
$courseid = $_REQUEST['courseid'];
include('event_select.html');
}
else {
include('event_new.html');
if ($usehtmleditor) {
use_html_editor();
}
}
print_side_block_end();
break;
}
echo '</td>';
// START: Last column (3-month display)
echo '<td style="vertical-align: top; width: 180px;">';
// [pj] There is a whole class of problems with minimonths in event.php, which
// was why there were no minimonths before... I fixed them as best I could for now.
// These were left out, and the whole thing was simply broken
$defaultcourses = calendar_get_default_courses();
echo calendar_overlib_html();
calendar_set_filters($courses, $groups, $users, $defaultcourses, $defaultcourses);
print_side_block_start(get_string('monthlyview', 'calendar'), '', 'sideblockmain');
list($prevmon, $prevyr) = calendar_sub_month($mon, $yr);
list($nextmon, $nextyr) = calendar_add_month($mon, $yr);
// This is also broken; set.php doesn't know how to redirect back to event.php
// echo calendar_filter_controls('event');
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, $nextyr);
echo '</p>';
print_side_block_end();
print_spacer(1, 180);
echo '</td>';
echo '</tr></table>';
print_footer();
function validate_form(&$form, &$err) {
if(empty($form->name)) {
$err['name'] = get_string('errornoeventname', 'calendar');
}
if(empty($form->description)) {
$err['description'] = get_string('errornodescription', 'calendar');
}
if(!checkdate($form->startmon, $form->startday, $form->startyr)) {
$err['timestart'] = get_string('errorinvaliddate', 'calendar');
}
if($form->duration == 2 and !checkdate($form->endmon, $form->endday, $form->endyr)) {
$err['timeduration'] = get_string('errorinvaliddate', 'calendar');
}
if($form->duration == 2 and !($form->minutes > 0 and $form->minutes < 1000)) {
$err['minutes'] = get_string('errorinvalidminutes', 'calendar');
}
if ($form->repeat and !($form->repeats > 1 and $form->repeats < 100)) {
$err['repeats'] = get_string('errorinvalidrepeats', 'calendar');
}
if(!empty($form->courseid)) {
// Timestamps must be >= course startdate
$course = get_record('course', 'id', $form->courseid);
if($course === false) {
error('Event belongs to invalid course');
}
else if($form->timestart < $course->startdate) {
$err['timestart'] = get_string('errorbeforecoursestart', 'calendar');
}
}
}
function calendar_add_event_allowed($courseid, $groupid, $userid) {
global $USER;
if(isadmin()) {
return true;
}
else if($courseid == 0 && $groupid == 0 && $userid == $USER->id) {
return true;
}
else if($courseid != 0 && isteacheredit($courseid)) {
return true;
}
return false;
}
function calendar_get_allowed_types(&$allowed) {
global $USER, $CFG, $SESSION;
$allowed->user = true; // User events always allowed
$allowed->groups = false; // This may change just below
$allowed->courses = false; // This may change just below
$allowed->site = isadmin($USER->id);
if(!empty($SESSION->cal_course_referer)) {
$allowed->courses = array($SESSION->cal_course_referer => 1);
$allowed->groups = get_groups($SESSION->cal_course_referer);
}
//[pj]: This was used when we wanted to display all legal choices
/*
if($allowed->site) {
$allowed->courses = get_courses('all', 'c.shortname');
$allowed->groups = get_records_sql('SELECT g.*, c.fullname FROM '.$CFG->prefix.'groups g LEFT JOIN '.$CFG->prefix.'course c ON g.courseid = c.id ORDER BY c.shortname');
}
else if(!empty($USER->teacheredit)) {
$allowed->courses = get_records_select('course', 'id != 1 AND id IN ('.implode(',', array_keys($USER->teacheredit)).')');
$allowed->groups = get_records_sql('SELECT g.*, c.fullname FROM '.$CFG->prefix.'groups g LEFT JOIN '.$CFG->prefix.'course c ON g.courseid = c.id WHERE g.courseid IN ('.implode(',', array_keys($USER->teacheredit)).')');
}
*/
}
?>
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