moodle/comment/comment_ajax.php

106 lines
3.2 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/*
* Handling all ajax request for comments API
*/
require_once('../config.php');
require_once($CFG->libdir.'/commentlib.php');
$courseid = optional_param('courseid', SITEID, PARAM_INT);
$contextid = optional_param('contextid', SYSCONTEXTID, PARAM_INT);
$context = get_context_instance_by_id($contextid);
if ($context->contextlevel == CONTEXT_MODULE) {
$cm = get_coursemodule_from_id('', $context->instanceid);
} else {
$cm = null;
}
require_login($courseid, true, $cm);
$err = new stdclass;
if (!confirm_sesskey()) {
$err->error = get_string('invalidsesskey');
die(json_encode($err));
}
if (!isloggedin()){
$err->error = get_string('loggedinnot');
die(json_encode($err));
}
if (isguestuser()) {
$err->error = get_string('loggedinnot');
die(json_encode($err));
}
$action = optional_param('action', '', PARAM_ALPHA);
$area = optional_param('area', '', PARAM_ALPHAEXT);
$client_id = optional_param('client_id', '', PARAM_RAW);
$commentid = optional_param('commentid', -1, PARAM_INT);
$content = optional_param('content', '', PARAM_RAW);
$itemid = optional_param('itemid', '', PARAM_INT);
$page = optional_param('page', 0, PARAM_INT);
if (!empty($client_id)) {
$cmt = new stdclass;
$cmt->contextid = $contextid;
$cmt->courseid = $courseid;
$cmt->area = $area;
$cmt->itemid = $itemid;
$cmt->client_id = $client_id;
$comment = new comment($cmt);
}
switch ($action) {
case 'add':
try {
$cmt = $comment->add($content);
$cmt->count = $comment->count();
if (!empty($cmt) && is_object($cmt)) {
$cmt->client_id = $client_id;
echo json_encode($cmt);
}
} catch (comment_exception $e) {
echo json_encode(array('error'=>$e->message));
}
break;
case 'delete':
try {
$result = $comment->delete($commentid);
if ($result === true) {
echo json_encode(array('client_id'=>$client_id, 'commentid'=>$commentid));
}
} catch (comment_exception $e) {
echo json_encode(array('error'=>$e->message));
}
break;
case 'get':
default:
$ret = array();
try {
$comments = $comment->get_comments($page);
$ret['list'] = $comments;
$ret['count'] = $comment->count();
$ret['pagination'] = $comment->get_pagination($page);
$ret['client_id'] = $client_id;
echo json_encode($ret);
} catch (comment_exception $e) {
echo json_encode(array('error'=>$e->message));
}
}