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($CFG->dirroot.'/calendar/lib.php');
  29 require_once($CFG->dirroot.'/calendar/managesubscriptions_form.php');
  30
  31 // Required use.
  32 $courseid = optional_param('course', SITEID, 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 navigation_node::override_active_url(new moodle_url('/calendar/view.php', array('view' => 'month')));
  43 $PAGE->set_url($url);
  44 $PAGE->set_pagelayout('admin');
  45 $PAGE->navbar->add(get_string('managesubscriptions', 'calendar'));
  46
  47 if ($courseid != SITEID && !empty($courseid)) {
  48     // Course ID must be valid and existing.
  49     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
  50     $courses = array($course->id => $course);
  51 } else {
  52     $course = get_site();
  53     $courses = calendar_get_default_courses();
  54 }
  55 require_login($course, false);
  56
  57 if (!calendar_user_can_add_event($course)) {
  58     print_error('errorcannotimport', 'calendar');
  59 }
  60
  61 $form = new calendar_addsubscription_form(null);
  62 $form->set_data(array(
  63     'course' => $course->id
  64 ));
  65
  66 $importresults = '';
  67
  68 $formdata = $form->get_data();
  69 if (!empty($formdata)) {
  70     require_sesskey(); // Must have sesskey for all actions.
  71     $subscriptionid = calendar_add_subscription($formdata);
  72     if ($formdata->importfrom == CALENDAR_IMPORT_FROM_FILE) {
  73         // Blank the URL if it's a file import.
  74         $formdata->url = '';
  75         $calendar = $form->get_file_content('importfile');
  76         $ical = new iCalendar();
  77         $ical->unserialize($calendar);
  78         $importresults = calendar_import_icalendar_events($ical, $courseid, $subscriptionid);
  79     } else {
  80         try {
  81             $importresults = calendar_update_subscription_events($subscriptionid);
  82         } catch (moodle_exception $e) {
  83             // Delete newly added subscription and show invalid url error.
  84             calendar_delete_subscription($subscriptionid);
  85             print_error($e->errorcode, $e->module, $PAGE->url);
  86         }
  87     }
  88     // Redirect to prevent refresh issues.
  89     redirect($PAGE->url, $importresults);
  90 } else if (!empty($subscriptionid)) {
  91     // The user is wanting to perform an action upon an existing subscription.
  92     require_sesskey(); // Must have sesskey for all actions.
  93     if (calendar_can_edit_subscription($subscriptionid)) {
  94         try {
  95             $importresults = calendar_process_subscription_row($subscriptionid, $pollinterval, $action);
  96         } catch (moodle_exception $e) {
  97             // If exception caught, then user should be redirected to page where he/she came from.
  98             print_error($e->errorcode, $e->module, $PAGE->url);
  99         }
 100     } else {
 101         print_error('nopermissions', 'error', $PAGE->url, get_string('managesubscriptions', 'calendar'));
 102     }
 103 }
 104
 105 $sql = 'SELECT *
 106           FROM {event_subscriptions}
 107          WHERE courseid = :courseid
 108             OR (courseid = 0 AND userid = :userid)';
 109 $params = array('courseid' => $courseid, 'userid' => $USER->id);
 110 $subscriptions = $DB->get_records_sql($sql, $params);
 111
 112 // Print title and header.
 113 $PAGE->set_title("$course->shortname: ".get_string('calendar', 'calendar').": ".get_string('subscriptions', 'calendar'));
 114 $PAGE->set_heading($course->fullname);
 115
 116 $renderer = $PAGE->get_renderer('core_calendar');
 117
 118 echo $OUTPUT->header();
 119
 120 // Filter subscriptions which user can't edit.
 121 foreach($subscriptions as $subscription) {
 122     if (!calendar_can_edit_subscription($subscription)) {
 123         unset($subscriptions[$subscription->id]);
 124     }
 125 }
 126
 127 // Display a table of subscriptions.
 128 echo $renderer->subscription_details($courseid, $subscriptions, $importresults);
 129 // Display the add subscription form.
 130 $form->display();
 131 echo $OUTPUT->footer();