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 $groupcourseid  = optional_param('groupcourseid', 0, PARAM_INT);
  37 $action = optional_param('action', '', PARAM_INT);
  38
  39 $url = new moodle_url('/calendar/managesubscriptions.php');
  40 if ($courseid != SITEID) {
  41     $url->param('course', $courseid);
  42 }
  43 if ($categoryid) {
  44     $url->param('categoryid', $categoryid);
  45 }
  46 navigation_node::override_active_url(new moodle_url('/calendar/view.php', array('view' => 'month')));
  47 $PAGE->set_url($url);
  48 $PAGE->set_pagelayout('admin');
  49 $PAGE->navbar->add(get_string('managesubscriptions', 'calendar'));
  50
  51 if ($courseid != SITEID && !empty($courseid)) {
  52     // Course ID must be valid and existing.
  53     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
  54     $courses = array($course->id => $course);
  55 } else {
  56     $course = get_site();
  57     $courses = calendar_get_default_courses();
  58 }
  59 require_login($course, false);
  60
  61 if (!calendar_user_can_add_event($course)) {
  62     print_error('errorcannotimport', 'calendar');
  63 }
  64
  65 // Populate the 'group' select box based on the given 'groupcourseid', if necessary.
  66 $groups = [];
  67 if (!empty($groupcourseid)) {
  68     require_once($CFG->libdir . '/grouplib.php');
  69     $groupcoursedata = groups_get_course_data($groupcourseid);
  70     if (!empty($groupcoursedata->groups)) {
  71         foreach ($groupcoursedata->groups as $groupid => $groupdata) {
  72             $groups[$groupid] = $groupdata->name;
  73         }
  74     }
  75 }
  76 $customdata = [
  77     'courseid' => $course->id,
  78     'groups' => $groups,
  79 ];
  80 $form = new \core_calendar\local\event\forms\managesubscriptions(null, $customdata);
  81 $form->set_data(array(
  82     'course' => $course->id
  83 ));
  84
  85 $importresults = '';
  86
  87 $formdata = $form->get_data();
  88 if (!empty($formdata)) {
  89     require_sesskey(); // Must have sesskey for all actions.
  90     $subscriptionid = calendar_add_subscription($formdata);
  91     if ($formdata->importfrom == CALENDAR_IMPORT_FROM_FILE) {
  92         // Blank the URL if it's a file import.
  93         $formdata->url = '';
  94         $calendar = $form->get_file_content('importfile');
  95         $ical = new iCalendar();
  96         $ical->unserialize($calendar);
  97         $importresults = calendar_import_icalendar_events($ical, null, $subscriptionid);
  98     } else {
  99         try {
 100             $importresults = calendar_update_subscription_events($subscriptionid);
 101         } catch (moodle_exception $e) {
 102             // Delete newly added subscription and show invalid url error.
 103             calendar_delete_subscription($subscriptionid);
 104             print_error($e->errorcode, $e->module, $PAGE->url);
 105         }
 106     }
 107     // Redirect to prevent refresh issues.
 108     redirect($PAGE->url, $importresults);
 109 } else if (!empty($subscriptionid)) {
 110     // The user is wanting to perform an action upon an existing subscription.
 111     require_sesskey(); // Must have sesskey for all actions.
 112     if (calendar_can_edit_subscription($subscriptionid)) {
 113         try {
 114             $importresults = calendar_process_subscription_row($subscriptionid, $pollinterval, $action);
 115         } catch (moodle_exception $e) {
 116             // If exception caught, then user should be redirected to page where he/she came from.
 117             print_error($e->errorcode, $e->module, $PAGE->url);
 118         }
 119     } else {
 120         print_error('nopermissions', 'error', $PAGE->url, get_string('managesubscriptions', 'calendar'));
 121     }
 122 }
 123
 124 $types = calendar_get_allowed_event_types($courseid);
 125
 126 $searches = [];
 127 $params = [];
 128
 129 $usedefaultfilters = true;
 130
 131 if (!empty($types['site'])) {
 132     $searches[] = "(eventtype = 'site')";
 133     $usedefaultfilters = false;
 134 }
 135
 136 if (!empty($types['user'])) {
 137     $searches[] = "(eventtype = 'user' AND userid = :userid)";
 138     $params['userid'] = $USER->id;
 139     $usedefaultfilters = false;
 140 }
 141
 142 if (!empty($courseid) && !empty($types['course'])) {
 143     $searches[] = "((eventtype = 'course' OR eventtype = 'group') AND courseid = :courseid)";
 144     $params += ['courseid' => $courseid];
 145     $usedefaultfilters = false;
 146 }
 147
 148 if (!empty($types['category'])) {
 149     if (!empty($categoryid)) {
 150         $searches[] = "(eventtype = 'category' AND categoryid = :categoryid)";
 151         $params += ['categoryid' => $categoryid];
 152     } else {
 153         $searches[] = "(eventtype = 'category')";
 154     }
 155
 156     $usedefaultfilters = false;
 157 }
 158
 159 if ($usedefaultfilters) {
 160     $searches[] = "(eventtype = 'user' AND userid = :userid)";
 161     $params['userid'] = $USER->id;
 162
 163     if (!empty($types['site'])) {
 164         $searches[] = "(eventtype = 'site' AND courseid  = :siteid)";
 165         $params += ['siteid' => SITEID];
 166     }
 167
 168     if (!empty($types['course'])) {
 169         $courses = calendar_get_default_courses(null, 'id', true);
 170         if (!empty($courses)) {
 171             $courseids = array_map(function ($c) {
 172                 return $c->id;
 173             }, $courses);
 174
 175             list($courseinsql, $courseparams) = $DB->get_in_or_equal($courseids, SQL_PARAMS_NAMED, 'course');
 176             $searches[] = "((eventtype = 'course' OR eventtype = 'group') AND courseid {$courseinsql})";
 177             $params += $courseparams;
 178         }
 179     }
 180
 181     if (!empty($types['category'])) {
 182         list($categoryinsql, $categoryparams) = $DB->get_in_or_equal(
 183                 array_keys(\core_course_category::make_categories_list('moodle/category:manage')), SQL_PARAMS_NAMED, 'category');
 184         $searches[] = "(eventtype = 'category' AND categoryid {$categoryinsql})";
 185         $params += $categoryparams;
 186     }
 187 }
 188
 189 $sql = "SELECT * FROM {event_subscriptions} WHERE " . implode(' OR ', $searches);;
 190 $subscriptions = $DB->get_records_sql($sql, $params);
 191
 192 // Print title and header.
 193 $PAGE->set_title("$course->shortname: ".get_string('calendar', 'calendar').": ".get_string('subscriptions', 'calendar'));
 194 $PAGE->set_heading($course->fullname);
 195
 196 $renderer = $PAGE->get_renderer('core_calendar');
 197
 198 echo $OUTPUT->header();
 199
 200 // Filter subscriptions which user can't edit.
 201 foreach($subscriptions as $subscription) {
 202     if (!calendar_can_edit_subscription($subscription)) {
 203         unset($subscriptions[$subscription->id]);
 204     }
 205 }
 206
 207 // Display a table of subscriptions.
 208 echo $renderer->subscription_details($courseid, $subscriptions, $importresults);
 209 // Display the add subscription form.
 210 $form->display();
 211 echo $OUTPUT->footer();