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
  32 $eventid = required_param('id', PARAM_INT);
  33 $confirm = optional_param('confirm', false, PARAM_BOOL);
  34 $repeats = optional_param('repeats', false, PARAM_BOOL);
  35 $courseid = optional_param('course', 0, PARAM_INT);
  36
  37 $PAGE->set_url('/calendar/delete.php', array('id'=>$eventid));
  38
  39 if(!$site = get_site()) {
  40     redirect(new moodle_url('/admin/index.php'));
  41 }
  42
  43 $event = calendar_event::load($eventid);
  44
  45 /**
  46  * We are going to be picky here, and require that any event types other than
  47  * group and site be associated with a course. This means any code that is using
  48  * custom event types (and there are a few) will need to associate thier event with
  49  * a course
  50  */
  51 if ($event->eventtype !== 'user' && $event->eventtype !== 'site') {
  52     if ($courseid !== $event->courseid) {
  53         print_error('invalidcourse');
  54     }
  55     require_login($event->courseid);
  56 } else {
  57     require_login();
  58 }
  59
  60 // Check the user has the required capabilities to edit an event
  61 if (!calendar_edit_event_allowed($event)) {
  62     print_error('nopermissions');
  63 }
  64
  65 // Count the repeats, do we need to consider the possibility of deleting repeats
  66 $event->timedurationuntil = $event->timestart + $event->timeduration;
  67 $event->count_repeats();
  68
  69 // Is used several times, and sometimes with modification if required
  70 $viewcalendarurl = new moodle_url(CALENDAR_URL.'view.php', array('view'=>'upcoming'));
  71 $viewcalendarurl->param('cal_y', date('Y', $event->timestart));
  72 $viewcalendarurl->param('cal_m', date('m', $event->timestart));
  73
  74 // If confirm is set (PARAM_BOOL) then we have confirmation of initention to delete
  75 if ($confirm) {
  76     // Confirm the session key to stop CSRF
  77     if (!confirm_sesskey()) {
  78         print_error('confirmsesskeybad');
  79     }
  80     // Delete the event and possibly repeats
  81     $event->delete($repeats);
  82     // If the event has an associated course then we need to include it in the redirect link
  83     if (!empty($event->courseid) && $event->courseid > 0) {
  84         $viewcalendarurl->param('course', $event->courseid);
  85     }
  86     // And redirect
  87     redirect($viewcalendarurl);
  88 }
  89
  90 // Prepare the page to show the confirmation form
  91 $title = get_string('deleteevent', 'calendar');
  92 $strcalendar = get_string('calendar', 'calendar');
  93
  94 $PAGE->navbar->add($strcalendar, $viewcalendarurl);
  95 $PAGE->navbar->add($title);
  96 $PAGE->set_title($site->shortname.': '.$strcalendar.': '.$title);
  97 $PAGE->set_heading($COURSE->fullname);
  98 echo $OUTPUT->header();
  99 echo $OUTPUT->box_start('eventlist');
 100
 101 // Delete this event button is always shown
 102 $url = new moodle_url(CALENDAR_URL.'delete.php', array('id'=>$event->id, 'confirm'=>true));
 103 $buttons = $OUTPUT->single_button($url, get_string('delete'));
 104
 105 // If there are repeated events then add a Delete Repeated button
 106 $repeatspan = '';
 107 if (!empty($event->eventrepeats) && $event->eventrepeats > 0) {
 108     $url = new moodle_url(CALENDAR_URL.'delete.php', array('id'=>$event->repeatid, 'confirm'=>true, 'repeats'=>true));
 109     $buttons .= $OUTPUT->single_button($url, get_string('deleteall'));
 110     $repeatspan = '<br /><br /><span>'.get_string('youcandeleteallrepeats', 'calendar').'</span>';
 111 }
 112
 113 // And add the cancel button
 114 $buttons .= $OUTPUT->single_button($viewcalendarurl, get_string('cancel'));
 115
 116 // And show the buttons and notes
 117 echo $OUTPUT->box_start('generalbox', 'notice');
 118 echo $OUTPUT->box(get_string('confirmeventdelete', 'calendar').$repeatspan);
 119 echo $OUTPUT->box($buttons, 'buttons');
 120 echo $OUTPUT->box_end();
 121
 122 // Print the event so that people can visually confirm they have the correct event
 123 $event->time = calendar_format_event_time($event, time(), '', false);
 124 calendar_print_event($event, false);
 125
 126 echo $OUTPUT->box_end();
 127 echo $OUTPUT->footer();