mirror of
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488 lines
20 KiB
PHP
488 lines
20 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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require_once('../config.php');
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require_once('lib.php');
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require_once('../course/lib.php');
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require_once('../mod/forum/lib.php');
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require_login();
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if(isguest()) {
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// Guests cannot do anything with events
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redirect(CALENDAR_URL.'view.php?view=upcoming');
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}
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require_variable($_REQUEST['action']);
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optional_variable($_REQUEST['id']);
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$_REQUEST['id'] = intval($_REQUEST['id']); // Always a good idea, against SQL injections
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if(!$site = get_site()) {
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redirect($CFG->wwwroot.'/'.$CFG->admin.'/index.php');
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}
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$firstcolumn = false; // for now
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$side = 175;
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calendar_session_vars();
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$now = usergetdate(time());
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$nav = calendar_get_link_tag(get_string('calendar', 'calendar'), CALENDAR_URL.'view.php?view=upcoming&', $now['mday'], $now['mon'], $now['year']);
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// Minor hack to default to FORMAT_MOODLE and no html editor for now
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// maybe in the future...
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if ($usehtmleditor = can_use_richtext_editor() && false) {
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$defaultformat = FORMAT_HTML;
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} else {
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$defaultformat = FORMAT_MOODLE;
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}
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switch($_REQUEST['action']) {
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case 'delete':
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$title = get_string('deleteevent', 'calendar');
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$event = get_record('event', 'id', $_REQUEST['id']);
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if($event === false) {
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error('Invalid event');
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}
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if(!calendar_edit_event_allowed($event)) {
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error('You are not authorized to do this');
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}
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break;
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case 'edit':
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$title = get_string('editevent', 'calendar');
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$event = get_record('event', 'id', $_REQUEST['id']);
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if($event === false) {
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error('Invalid event');
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}
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if(!calendar_edit_event_allowed($event)) {
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error('You are not authorized to do this');
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}
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if($form = data_submitted()) {
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$form->name = strip_tags($form->name); // Strip all tags
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$form->description = strip_tags($form->description); // Strip all tags
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//$form->description = clean_text($form->description , $form->format); // Clean up any bad tags
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$form->timestart = make_timestamp($form->startyr, $form->startmon, $form->startday, $form->starthr, $form->startmin);
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if($form->duration == 1) {
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$form->timeduration = make_timestamp($form->endyr, $form->endmon, $form->endday, $form->endhr, $form->endmin) - $form->timestart;
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if($form->timeduration < 0) {
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$form->timeduration = 0;
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}
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}
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else {
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$form->timeduration = 0;
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}
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validate_form($form, $err);
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if (count($err) == 0) {
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$form->timemodified = time();
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update_record('event', $form);
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/// Log the event update.
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add_to_log($form->courseid, 'calendar', 'edit', 'event.php?action=edit&id='.$form->id, $form->name);
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// OK, now redirect to day view
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redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$form->startday.'&cal_m='.$form->startmon.'&cal_y='.$form->startyr);
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}
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else {
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foreach ($err as $key => $value) {
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$focus = "form.$key";
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}
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}
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}
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break;
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case 'new':
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$title = get_string('newevent', 'calendar');
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$form = data_submitted();
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if(!empty($form) && $form->type == 'defined') {
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$form->name = strip_tags($form->name); // Strip all tags
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$form->description = strip_tags($form->description); // Strip all tags
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//$form->description = clean_text($form->description , $form->format); // Clean up any bad tags
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$form->timestart = make_timestamp($form->startyr, $form->startmon, $form->startday, $form->starthr, $form->startmin);
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if($form->duration == 1) {
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$form->timeduration = make_timestamp($form->endyr, $form->endmon, $form->endday, $form->endhr, $form->endmin) - $form->timestart;
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if($form->timeduration < 0) {
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$form->timeduration = 0;
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}
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}
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else {
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$form->timeduration = 0;
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}
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if(!calendar_add_event_allowed($form->courseid, $form->groupid, $form->userid)) {
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error('You are not authorized to do this');
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}
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validate_form($form, $err);
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if (count($err) == 0) {
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$form->timemodified = time();
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/// Get the event id for the log record.
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$eventid = insert_record('event', $form, true);
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/// Log the event entry.
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add_to_log($form->courseid, 'calendar', 'add', 'event.php?action=edit&id='.$eventid, $form->name);
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// OK, now redirect to day view
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redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$form->startday.'&cal_m='.$form->startmon.'&cal_y='.$form->startyr);
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}
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else {
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foreach ($err as $key => $value) {
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$focus = "form.$key";
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}
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}
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}
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break;
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}
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if(empty($focus)) $focus = '';
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// Let's see if we are supposed to provide a referring course link
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// but NOT for the front page
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if($SESSION->cal_course_referer > 1 &&
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($shortname = get_field('course', 'shortname', 'id', $SESSION->cal_course_referer)) !== false) {
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// If we know about the referring course, show a return link
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$nav = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$SESSION->cal_course_referer.'">'.$shortname.'</a> -> '.$nav;
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}
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print_header(get_string('calendar', 'calendar').': '.$title, $site->fullname, $nav.' -> '.$title,
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$focus, '', true, '', '<p class="logininfo">'.user_login_string($site).'</p>');
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/// Layout the whole page as three big columns.
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echo '<table border="0" cellpadding="3" cellspacing="0" width="100%"><tr valign="top">';
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$sections = get_all_sections($site->id);
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if ($site->newsitems > 0 or $sections[0]->sequence or isediting($site->id) or isadmin()) {
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echo "<td width=\"$side\" valign='top nowrap'>";
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$firstcolumn=true;
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if ($sections[0]->sequence or isediting($site->id)) {
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get_all_mods($site->id, $mods, $modnames, $modnamesplural, $modnamesused);
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print_section_block(get_string("mainmenu"), $site, $sections[0],
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$mods, $modnames, $modnamesused, true, $side);
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}
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print_courses_sideblock(0, $side);
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if ($site->newsitems) {
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if ($news = forum_get_course_forum($site->id, "news")) {
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print_side_block_start(get_string("latestnews"), $side, "sideblocklatestnews");
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echo "<font size=\"-2\">";
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forum_print_latest_discussions($news->id, $site->newsitems, "minimal", "", false);
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echo "</font>";
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print_side_block_end();
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}
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}
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print_spacer(1,$side);
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}
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if (iscreator()) {
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if (!$firstcolumn) {
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echo "<td width=\"$side\" valign=top nowrap>";
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$firstcolumn=true;
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}
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print_admin_links($site->id, $side);
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}
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if ($firstcolumn) {
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echo '</td>';
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echo '<td valign="top\">';
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}
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else {
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echo '<td valign="top">';
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}
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$text = '<div style="float: left;">'.get_string('calendarheading', 'calendar', strip_tags($site->shortname)).'</div><div style="float: right;">';
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$text.= calendar_get_preferences_menu();
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$text.= '</div>';
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print_heading_block($text);
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print_spacer(8, 1);
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switch($_REQUEST['action']) {
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case 'delete':
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if($_REQUEST['confirm'] == 1) {
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// Kill it and redirect to day view
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if(($event = get_record('event', 'id', $_REQUEST['id'])) !== false) {
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/// Log the event delete.
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delete_records('event', 'id', $_REQUEST['id']);
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// pj - fixed the course id problem, but now we have another one:
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// what to do with the URL?
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add_to_log($event->courseid, 'calendar', 'delete', '', $event->name);
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}
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if(checkdate($_REQUEST['m'], $_REQUEST['d'], $_REQUEST['y'])) {
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// Being a bit paranoid to check this, but it doesn't hurt
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redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$_REQUEST['d'].'&cal_m='.$_REQUEST['m'].'&cal_y='.$_REQUEST['y']);
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}
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else {
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// Redirect to now
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redirect(CALENDAR_URL.'view.php?view=day&cal_d='.$now['mday'].'&cal_m='.$now['mon'].'&cal_y='.$now['year']);
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}
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}
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else {
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$eventtime = usergetdate($event->timestart);
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$m = $eventtime['mon'];
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$d = $eventtime['mday'];
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$y = $eventtime['year'];
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// Display confirmation form
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print_side_block_start(get_string('deleteevent', 'calendar').': '.$event->name, '', 'mycalendar');
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include('event_delete.html');
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print_side_block_end();
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}
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break;
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case 'edit':
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if(empty($form)) {
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$form->name = $event->name;
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$form->courseid = $event->courseid; // Not to update, but for date validation
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$form->description = $event->description;
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$form->timestart = $event->timestart;
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$form->timeduration = $event->timeduration;
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$form->id = $event->id;
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$form->format = $defaultformat;
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if($event->timeduration) {
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$form->duration = 1;
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}
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else {
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$form->duration = 0;
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}
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}
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print_side_block_start(get_string('editevent', 'calendar'), '', 'mycalendar');
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include('event_edit.html');
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print_side_block_end();
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break;
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case 'new':
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optional_variable($_GET['cal_y']);
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optional_variable($_GET['cal_m']);
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optional_variable($_GET['cal_d']);
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optional_variable($form->timestart, -1);
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if($_GET['cal_y'] && $_GET['cal_m'] && $_GET['cal_d'] && checkdate($_GET['cal_m'], $_GET['cal_d'], $_GET['cal_y'])) {
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$form->timestart = make_timestamp($_GET['cal_y'], $_GET['cal_m'], $_GET['cal_d'], 0, 0, 0);
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}
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else if($_GET['cal_y'] && $_GET['cal_m'] && checkdate($_GET['cal_m'], 1, $_GET['cal_y'])) {
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if($_GET['cal_y'] == $now['year'] && $_GET['cal_m'] == $now['mon']) {
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$form->timestart = make_timestamp($_GET['cal_y'], $_GET['cal_m'], $now['mday'], 0, 0, 0);
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}
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else {
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$form->timestart = make_timestamp($_GET['cal_y'], $_GET['cal_m'], 1, 0, 0, 0);
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}
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}
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if($form->timestart < 0) {
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$form->timestart = time();
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}
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if(!isset($_REQUEST['type'])) {
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// We don't know what kind of event we want
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calendar_get_allowed_types($allowed);
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if(!$allowed->groups && !$allowed->courses && !$allowed->site) {
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// Take the shortcut
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$_REQUEST['type'] = 'user';
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}
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else {
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$_REQUEST['type'] = 'select';
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}
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}
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$header = '';
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switch($_REQUEST['type']) {
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case 'user':
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$form->name = '';
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$form->description = '';
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$form->courseid = 0;
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$form->groupid = 0;
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$form->userid = $USER->id;
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$form->modulename = '';
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$form->eventtype = '';
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$form->instance = 0;
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$form->timeduration = 0;
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$form->duration = 0;
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$header = get_string('typeuser', 'calendar');
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break;
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case 'group':
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optional_variable($_REQUEST['groupid']);
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$groupid = $_REQUEST['groupid'];
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if(!($group = get_record('groups', 'id', $groupid) )) {
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calendar_get_allowed_types($allowed);
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$_REQUEST['type'] = 'select';
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}
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else {
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$form->name = '';
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$form->description = '';
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$form->courseid = $group->courseid;
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$form->groupid = $group->id;
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$form->userid = $USER->id;
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$form->modulename = '';
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$form->eventtype = '';
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$form->instance = 0;
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$form->timeduration = 0;
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$form->duration = 0;
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$header = get_string('typegroup', 'calendar');
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}
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break;
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case 'course':
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optional_variable($_REQUEST['courseid']);
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$courseid = $_REQUEST['courseid'];
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if(!record_exists('course', 'id', $courseid)) {
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calendar_get_allowed_types($allowed);
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$_REQUEST['type'] = 'select';
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}
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else {
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$form->name = '';
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$form->description = '';
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$form->courseid = $courseid;
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$form->groupid = 0;
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$form->userid = $USER->id;
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$form->modulename = '';
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$form->eventtype = '';
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$form->instance = 0;
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$form->timeduration = 0;
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$form->duration = 0;
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$header = get_string('typecourse', 'calendar');
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}
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break;
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case 'site':
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$form->name = '';
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$form->description = '';
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$form->courseid = 1;
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$form->groupid = 0;
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$form->userid = $USER->id;
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$form->modulename = '';
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$form->eventtype = '';
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$form->instance = 0;
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$form->timeduration = 0;
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$form->duration = 0;
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$header = get_string('typesite', 'calendar');
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break;
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case 'defined':
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case 'select':
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break;
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default:
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error('Unsupported event type');
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}
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$form->format = $defaultformat;
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if(!empty($header)) {
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$header = ' ('.$header.')';
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}
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print_side_block_start(get_string('newevent', 'calendar').$header, '', 'mycalendar');
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if($_REQUEST['type'] == 'select') {
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include('event_select.html');
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}
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else {
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include('event_new.html');
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}
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print_side_block_end();
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break;
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}
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echo '</td></table>';
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if ($usehtmleditor) {
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use_html_editor();
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}
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print_footer();
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function validate_form(&$form, &$err) {
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if(empty($form->name)) {
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$err['name'] = get_string('errornoeventname', 'calendar');
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}
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if(empty($form->description)) {
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$err['description'] = get_string('errornodescription', 'calendar');
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}
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if(!checkdate($form->startmon, $form->startday, $form->startyr)) {
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$err['timestart'] = get_string('errorinvaliddate', 'calendar');
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}
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if(!checkdate($form->endmon, $form->endday, $form->endyr)) {
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$err['timeduration'] = get_string('errorinvaliddate', 'calendar');
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}
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if(!empty($form->courseid)) {
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// Timestamps must be >= course startdate
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$course = get_record('course', 'id', $form->courseid);
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if($course === false) {
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error('Event belongs to invalid course');
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}
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else if($form->timestart < $course->startdate) {
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$err['timestart'] = get_string('errorbeforecoursestart', 'calendar');
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}
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}
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}
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function calendar_add_event_allowed($courseid, $groupid, $userid) {
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global $USER;
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if(isadmin()) {
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return true;
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}
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else if($courseid == 0 && $groupid == 0 && $userid == $USER->id) {
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return true;
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}
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else if($courseid != 0 && isteacheredit($courseid)) {
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return true;
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}
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return false;
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}
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function calendar_get_allowed_types(&$allowed) {
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global $USER, $CFG;
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$allowed->user = true; // User events always allowed
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$allowed->groups = false; // This may change just below
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$allowed->courses = false; // This may change just below
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$allowed->site = isadmin();
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if(!empty($USER->teacheredit)) {
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$allowed->courses = get_records_select('course', 'id != 1 AND id IN ('.implode(',', array_keys($USER->teacheredit)).')');
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$allowed->groups = get_records_sql('SELECT g.*, c.fullname FROM '.$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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}
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}
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|
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?>
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