calendar/delete.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This file is part of the Calendar section Moodle
  20  * It is responsible for deleting a calendar entry + optionally its repeats
  21  *
  22  * @copyright 2009 Sam Hemelryk
  23  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  * @package calendar
  25  */
  26
  27 require_once('../config.php');
  28 require_once($CFG->dirroot.'/calendar/event_form.php');
  29 require_once($CFG->dirroot.'/calendar/lib.php');
  30 require_once($CFG->dirroot.'/course/lib.php');
  31 require_once($CFG->dirroot.'/calendar/renderer.php');
  32
  33 $eventid = required_param('id', PARAM_INT);
  34 $confirm = optional_param('confirm', false, PARAM_BOOL);
  35 $repeats = optional_param('repeats', false, PARAM_BOOL);
  36 $courseid = optional_param('course', 0, PARAM_INT);
  37
  38 $PAGE->set_url('/calendar/delete.php', array('id'=>$eventid));
  39
  40 if(!$site = get_site()) {
  41     redirect(new moodle_url('/admin/index.php'));
  42 }
  43
  44 $event = calendar_event::load($eventid);
  45
  46 /**
  47  * We are going to be picky here, and require that any event types other than
  48  * group and site be associated with a course. This means any code that is using
  49  * custom event types (and there are a few) will need to associate thier event with
  50  * a course
  51  */
  52 if ($event->eventtype !== 'user' && $event->eventtype !== 'site') {
  53     $courseid = $event->courseid;
  54 }
  55 $course = $DB->get_record('course', array('id'=>$courseid));
  56 require_login($course);
  57 if (!$course) {
  58     $PAGE->set_context(context_system::instance()); //TODO: wrong
  59 }
  60
  61 // Check the user has the required capabilities to edit an event
  62 if (!calendar_edit_event_allowed($event)) {
  63     print_error('nopermissions');
  64 }
  65
  66 // Count the repeats, do we need to consider the possibility of deleting repeats
  67 $event->timedurationuntil = $event->timestart + $event->timeduration;
  68 $event->count_repeats();
  69
  70 // Is used several times, and sometimes with modification if required
  71 $viewcalendarurl = new moodle_url(CALENDAR_URL.'view.php', array('view'=>'upcoming'));
  72 $viewcalendarurl->param('cal_y', userdate($event->timestart, '%Y'));
  73 $viewcalendarurl->param('cal_m', userdate($event->timestart, '%m'));
  74
  75 // If confirm is set (PARAM_BOOL) then we have confirmation of initention to delete
  76 if ($confirm) {
  77     // Confirm the session key to stop CSRF
  78     if (!confirm_sesskey()) {
  79         print_error('confirmsesskeybad');
  80     }
  81     // Delete the event and possibly repeats
  82     $event->delete($repeats);
  83     // If the event has an associated course then we need to include it in the redirect link
  84     if (!empty($event->courseid) && $event->courseid > 0) {
  85         $viewcalendarurl->param('course', $event->courseid);
  86     }
  87     // And redirect
  88     redirect($viewcalendarurl);
  89 }
  90
  91 // Prepare the page to show the confirmation form
  92 $title = get_string('deleteevent', 'calendar');
  93 $strcalendar = get_string('calendar', 'calendar');
  94
  95 $PAGE->navbar->add($strcalendar, $viewcalendarurl);
  96 $PAGE->navbar->add($title);
  97 $PAGE->set_title($site->shortname.': '.$strcalendar.': '.$title);
  98 $PAGE->set_heading($COURSE->fullname);
  99 echo $OUTPUT->header();
 100 echo $OUTPUT->box_start('eventlist');
 101
 102 // Delete this event button is always shown
 103 $url = new moodle_url(CALENDAR_URL.'delete.php', array('id'=>$event->id, 'confirm'=>true));
 104 $buttons = $OUTPUT->single_button($url, get_string('delete'));
 105
 106 // If there are repeated events then add a Delete Repeated button
 107 $repeatspan = '';
 108 if (!empty($event->eventrepeats) && $event->eventrepeats > 0) {
 109     $url = new moodle_url(CALENDAR_URL.'delete.php', array('id'=>$event->repeatid, 'confirm'=>true, 'repeats'=>true));
 110     $buttons .= $OUTPUT->single_button($url, get_string('deleteall'));
 111     $repeatspan = '<br /><br /><span>'.get_string('youcandeleteallrepeats', 'calendar', $event->eventrepeats).'</span>';
 112 }
 113
 114 // And add the cancel button
 115 $buttons .= $OUTPUT->single_button($viewcalendarurl, get_string('cancel'));
 116
 117 // And show the buttons and notes
 118 echo $OUTPUT->box_start('generalbox', 'notice');
 119 echo $OUTPUT->box(get_string('confirmeventdelete', 'calendar').$repeatspan);
 120 echo $OUTPUT->box($buttons, 'buttons');
 121 echo $OUTPUT->box_end();
 122
 123 // Print the event so that people can visually confirm they have the correct event
 124 $event->time = calendar_format_event_time($event, time(), null, false);
 125 $renderer = $PAGE->get_renderer('core_calendar');
 126 echo $renderer->start_layout();
 127 echo $renderer->event($event, false);
 128 echo $renderer->complete_layout();
 129
 130 echo $OUTPUT->box_end();
 131 echo $OUTPUT->footer();