calendar/managesubscriptions.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Allows the user to manage calendar subscriptions.
  19  *
  20  * @copyright 2012 Jonathan Harker
  21  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22  * @package calendar
  23  */
  24
  25 require_once('../config.php');
  26 require_once($CFG->libdir.'/bennu/bennu.inc.php');
  27 require_once($CFG->dirroot.'/course/lib.php');
  28 require_once($CFG->dirroot.'/calendar/lib.php');
  29
  30 // Required use.
  31 $courseid = optional_param('course', null, PARAM_INT);
  32 $categoryid = optional_param('category', null, PARAM_INT);
  33 // Used for processing subscription actions.
  34 $subscriptionid = optional_param('id', 0, PARAM_INT);
  35 $pollinterval  = optional_param('pollinterval', 0, PARAM_INT);
  36 $action = optional_param('action', '', PARAM_INT);
  37
  38 $url = new moodle_url('/calendar/managesubscriptions.php');
  39 if ($courseid != SITEID) {
  40     $url->param('course', $courseid);
  41 }
  42 if ($categoryid) {
  43     $url->param('categoryid', $categoryid);
  44 }
  45 navigation_node::override_active_url(new moodle_url('/calendar/view.php', array('view' => 'month')));
  46 $PAGE->set_url($url);
  47 $PAGE->set_pagelayout('admin');
  48 $PAGE->navbar->add(get_string('managesubscriptions', 'calendar'));
  49
  50 if ($courseid != SITEID && !empty($courseid)) {
  51     // Course ID must be valid and existing.
  52     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
  53     $courses = array($course->id => $course);
  54 } else {
  55     $course = get_site();
  56     $courses = calendar_get_default_courses();
  57 }
  58 require_login($course, false);
  59
  60 if (!calendar_user_can_add_event($course)) {
  61     print_error('errorcannotimport', 'calendar');
  62 }
  63
  64 $form = new \core_calendar\local\event\forms\managesubscriptions(null, ['courseid' => $course->id]);
  65 $form->set_data(array(
  66     'course' => $course->id
  67 ));
  68
  69 $importresults = '';
  70
  71 $formdata = $form->get_data();
  72 if (!empty($formdata)) {
  73     require_sesskey(); // Must have sesskey for all actions.
  74     $subscriptionid = calendar_add_subscription($formdata);
  75     if ($formdata->importfrom == CALENDAR_IMPORT_FROM_FILE) {
  76         // Blank the URL if it's a file import.
  77         $formdata->url = '';
  78         $calendar = $form->get_file_content('importfile');
  79         $ical = new iCalendar();
  80         $ical->unserialize($calendar);
  81         $importresults = calendar_import_icalendar_events($ical, null, $subscriptionid);
  82     } else {
  83         try {
  84             $importresults = calendar_update_subscription_events($subscriptionid);
  85         } catch (moodle_exception $e) {
  86             // Delete newly added subscription and show invalid url error.
  87             calendar_delete_subscription($subscriptionid);
  88             print_error($e->errorcode, $e->module, $PAGE->url);
  89         }
  90     }
  91     // Redirect to prevent refresh issues.
  92     redirect($PAGE->url, $importresults);
  93 } else if (!empty($subscriptionid)) {
  94     // The user is wanting to perform an action upon an existing subscription.
  95     require_sesskey(); // Must have sesskey for all actions.
  96     if (calendar_can_edit_subscription($subscriptionid)) {
  97         try {
  98             $importresults = calendar_process_subscription_row($subscriptionid, $pollinterval, $action);
  99         } catch (moodle_exception $e) {
 100             // If exception caught, then user should be redirected to page where he/she came from.
 101             print_error($e->errorcode, $e->module, $PAGE->url);
 102         }
 103     } else {
 104         print_error('nopermissions', 'error', $PAGE->url, get_string('managesubscriptions', 'calendar'));
 105     }
 106 }
 107
 108 $types = calendar_get_allowed_event_types($courseid);
 109
 110 $searches = [];
 111 $params = [];
 112
 113 $usedefaultfilters = true;
 114 if (!empty($courseid) && $courseid == SITEID && !empty($types['site'])) {
 115     $searches[] = "(eventtype = 'site')";
 116     $searches[] = "(eventtype = 'user' AND userid = :userid)";
 117     $params['userid'] = $USER->id;
 118     $usedefaultfilters = false;
 119 }
 120
 121 if (!empty($courseid) && !empty($types['course'])) {
 122     $searches[] = "((eventtype = 'course' OR eventtype = 'group') AND courseid = :courseid)";
 123     $params += ['courseid' => $courseid];
 124     $usedefaultfilters = false;
 125 }
 126
 127 if (!empty($categoryid) && !empty($types['category'])) {
 128     $searches[] = "(eventtype = 'category' AND categoryid = :categoryid)";
 129     $params += ['categoryid' => $categoryid];
 130     $usedefaultfilters = false;
 131 }
 132
 133 if ($usedefaultfilters) {
 134     $searches[] = "(eventtype = 'user' AND userid = :userid)";
 135     $params['userid'] = $USER->id;
 136
 137     if (!empty($types['site'])) {
 138         $searches[] = "(eventtype = 'site' AND courseid  = :siteid)";
 139         $params += ['siteid' => SITEID];
 140     }
 141
 142     if (!empty($types['course'])) {
 143         $courses = calendar_get_default_courses(null, 'id', true);
 144         if (!empty($courses)) {
 145             $courseids = array_map(function ($c) {
 146                 return $c->id;
 147             }, $courses);
 148
 149             list($courseinsql, $courseparams) = $DB->get_in_or_equal($courseids, SQL_PARAMS_NAMED, 'course');
 150             $searches[] = "((eventtype = 'course' OR eventtype = 'group') AND courseid {$courseinsql})";
 151             $params += $courseparams;
 152         }
 153     }
 154
 155     if (!empty($types['category'])) {
 156         list($categoryinsql, $categoryparams) = $DB->get_in_or_equal(
 157                 array_keys(\core_course_category::make_categories_list('moodle/category:manage')), SQL_PARAMS_NAMED, 'category');
 158         $searches[] = "(eventtype = 'category' AND categoryid {$categoryinsql})";
 159         $params += $categoryparams;
 160     }
 161 }
 162
 163 $sql = "SELECT * FROM {event_subscriptions} WHERE " . implode(' OR ', $searches);;
 164 $subscriptions = $DB->get_records_sql($sql, $params);
 165
 166 // Print title and header.
 167 $PAGE->set_title("$course->shortname: ".get_string('calendar', 'calendar').": ".get_string('subscriptions', 'calendar'));
 168 $PAGE->set_heading($course->fullname);
 169
 170 $renderer = $PAGE->get_renderer('core_calendar');
 171
 172 echo $OUTPUT->header();
 173
 174 // Filter subscriptions which user can't edit.
 175 foreach($subscriptions as $subscription) {
 176     if (!calendar_can_edit_subscription($subscription)) {
 177         unset($subscriptions[$subscription->id]);
 178     }
 179 }
 180
 181 // Display a table of subscriptions.
 182 echo $renderer->subscription_details($courseid, $subscriptions, $importresults);
 183 // Display the add subscription form.
 184 $form->display();
 185 echo $OUTPUT->footer();