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efrain |
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/*
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* Handling all ajax request for comments API
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*
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* @package core
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* @copyright 2010 Dongsheng Cai {@link http://dongsheng.org}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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define('AJAX_SCRIPT', true);
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define('NO_DEBUG_DISPLAY', true);
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require_once('../config.php');
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require_once($CFG->dirroot . '/comment/lib.php');
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$contextid = optional_param('contextid', SYSCONTEXTID, PARAM_INT);
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$action = optional_param('action', '', PARAM_ALPHA);
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if (empty($CFG->usecomments)) {
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throw new comment_exception('commentsnotenabled', 'moodle');
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}
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list($context, $course, $cm) = get_context_info_array($contextid);
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if ( $contextid == SYSCONTEXTID ) {
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$course = $SITE;
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}
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$PAGE->set_url('/comment/comment_ajax.php');
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// Allow anonymous user to view comments providing forcelogin now enabled
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require_course_login($course, true, $cm);
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$PAGE->set_context($context);
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if (!empty($cm)) {
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$PAGE->set_cm($cm, $course);
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} else if (!empty($course)) {
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$PAGE->set_course($course);
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}
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if (!confirm_sesskey()) {
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$error = array('error'=>get_string('invalidsesskey', 'error'));
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die(json_encode($error));
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}
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$client_id = required_param('client_id', PARAM_ALPHANUM);
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$area = optional_param('area', '', PARAM_AREA);
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$commentid = optional_param('commentid', -1, PARAM_INT);
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$content = optional_param('content', '', PARAM_RAW);
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$itemid = optional_param('itemid', '', PARAM_INT);
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$page = optional_param('page', 0, PARAM_INT);
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$component = optional_param('component', '', PARAM_COMPONENT);
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// initilising comment object
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$args = new stdClass;
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$args->context = $context;
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$args->course = $course;
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$args->cm = $cm;
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$args->area = $area;
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$args->itemid = $itemid;
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$args->client_id = $client_id;
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$args->component = $component;
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$manager = new comment($args);
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echo $OUTPUT->header(); // send headers
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// process ajax request
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switch ($action) {
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case 'add':
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if ($manager->can_post()) {
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$result = $manager->add($content);
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if (!empty($result) && is_object($result)) {
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$result->count = $manager->count();
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$result->client_id = $client_id;
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echo json_encode($result);
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die();
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}
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}
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break;
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case 'delete':
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$comment = $DB->get_record('comments', ['id' => $commentid]);
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if ($manager->can_delete($comment)) {
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if ($manager->delete($commentid)) {
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$result = array(
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'client_id' => $client_id,
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'commentid' => $commentid
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);
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echo json_encode($result);
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die();
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}
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}
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break;
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case 'get':
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default:
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if ($manager->can_view()) {
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$comments = $manager->get_comments($page);
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$result = array(
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'list' => $comments,
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'count' => $manager->count(),
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'pagination' => $manager->get_pagination($page),
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'client_id' => $client_id
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);
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echo json_encode($result);
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die();
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}
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break;
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}
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if (!isloggedin()) {
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// tell user to log in to view comments
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echo json_encode(array('error'=>'require_login'));
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}
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// ignore request
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die;
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