2 // This file is part of Moodle - http://moodle.org/
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.
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.
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/>.
18 * Handling all ajax request for comments API
20 define('AJAX_SCRIPT', true);
22 require_once('../config.php');
23 require_once($CFG->dirroot
. '/comment/lib.php');
25 $contextid = optional_param('contextid', SYSCONTEXTID
, PARAM_INT
);
26 $action = optional_param('action', '', PARAM_ALPHA
);
28 if (empty($CFG->usecomments
)) {
29 throw new comment_exception('commentsnotenabled', 'moodle');
32 list($context, $course, $cm) = get_context_info_array($contextid);
34 $PAGE->set_url('/comment/comment_ajax.php');
36 // Allow anonymous user to view comments providing forcelogin now enabled
37 require_course_login($course, true, $cm);
38 $PAGE->set_context($context);
40 $PAGE->set_cm($cm, $course);
41 } else if (!empty($course)) {
42 $PAGE->set_course($course);
45 if (!confirm_sesskey()) {
46 $error = array('error'=>get_string('invalidsesskey', 'error'));
47 die(json_encode($error));
50 $client_id = required_param('client_id', PARAM_ALPHANUM
);
51 $area = optional_param('area', '', PARAM_ALPHAEXT
);
52 $commentid = optional_param('commentid', -1, PARAM_INT
);
53 $content = optional_param('content', '', PARAM_RAW
);
54 $itemid = optional_param('itemid', '', PARAM_INT
);
55 $page = optional_param('page', 0, PARAM_INT
);
56 $component = optional_param('component', '', PARAM_ALPHAEXT
);
58 // initilising comment object
60 $args->context
= $context;
61 $args->course
= $course;
64 $args->itemid
= $itemid;
65 $args->client_id
= $client_id;
66 $args->component
= $component;
67 $manager = new comment($args);
69 echo $OUTPUT->header(); // send headers
71 // process ajax request
74 if ($manager->can_post()) {
75 $result = $manager->add($content);
76 if (!empty($result) && is_object($result)) {
77 $result->count
= $manager->count();
78 $result->client_id
= $client_id;
79 echo json_encode($result);
85 $comment_record = $DB->get_record('comments', array('id'=>$commentid));
86 if ($manager->can_delete($commentid) ||
$comment_record->userid
== $USER->id
) {
87 if ($manager->delete($commentid)) {
89 'client_id' => $client_id,
90 'commentid' => $commentid
92 echo json_encode($result);
99 if ($manager->can_view()) {
100 $comments = $manager->get_comments($page);
103 'count' => $manager->count(),
104 'pagination' => $manager->get_pagination($page),
105 'client_id' => $client_id
107 echo json_encode($result);
114 // tell user to log in to view comments
115 echo json_encode(array('error'=>'require_login'));