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/**
19 * Form page for an external blog link.
20 *
21 * @package    moodlecore
22 * @subpackage blog
23 * @copyright  2009 Nicolas Connault
24 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
25 */
26
27require_once('../config.php');
28require_once('lib.php');
29require_once('external_blog_edit_form.php');
30require_once($CFG->libdir . '/simplepie/moodle_simplepie.php');
31
32require_login();
33$context = context_system::instance();
34require_capability('moodle/blog:manageexternal', $context);
35
36// TODO redirect if $CFG->useexternalblogs is off,
37//                  $CFG->maxexternalblogsperuser == 0,
38//                  or if user doesn't have caps to manage external blogs.
39
40$id = optional_param('id', null, PARAM_INT);
41$url = new moodle_url('/blog/external_blog_edit.php');
42if ($id !== null) {
43    $url->param('id', $id);
44}
45$PAGE->set_url($url);
46$PAGE->set_context(context_user::instance($USER->id));
47$PAGE->set_pagelayout('admin');
48
49$returnurl = new moodle_url('/blog/external_blogs.php');
50
51$action = (empty($id)) ? 'add' : 'edit';
52
53$external = new stdClass();
54
55// Retrieve the external blog record.
56if (!empty($id)) {
57    if (!$external = $DB->get_record('blog_external', array('id' => $id, 'userid' => $USER->id))) {
58        print_error('wrongexternalid', 'blog');
59    }
60    $external->autotags = core_tag_tag::get_item_tags_array('core', 'blog_external', $id);
61}
62
63$strformheading = ($action == 'edit') ? get_string('editexternalblog', 'blog') : get_string('addnewexternalblog', 'blog');
64$strexternalblogs = get_string('externalblogs', 'blog');
65$strblogs = get_string('blogs', 'blog');
66
67$externalblogform = new blog_edit_external_form();
68
69if ($externalblogform->is_cancelled()) {
70    redirect($returnurl);
71
72} else if ($data = $externalblogform->get_data()) {
73    // Save stuff in db.
74    switch ($action) {
75        case 'add':
76            $rss = new moodle_simplepie($data->url);
77
78            $newexternal = new stdClass();
79            $newexternal->name = (empty($data->name)) ? $rss->get_title() : $data->name;
80            $newexternal->description = (empty($data->description)) ? $rss->get_description() : $data->description;
81            $newexternal->userid = $USER->id;
82            $newexternal->url = $data->url;
83            $newexternal->filtertags = (!empty($data->filtertags)) ? $data->filtertags : null;
84            $newexternal->timemodified = time();
85
86            $newexternal->id = $DB->insert_record('blog_external', $newexternal);
87            core_tag_tag::set_item_tags('core', 'blog_external', $newexternal->id,
88                    context_user::instance($newexternal->userid), $data->autotags);
89            blog_sync_external_entries($newexternal);
90
91            // Log this action.
92            $eventparms = array('context' => $context,
93                'objectid' => $newexternal->id,
94                'other' => array('url' => $newexternal->url));
95            $event = \core\event\blog_external_added::create($eventparms);
96            $event->trigger();
97
98            break;
99
100        case 'edit':
101            if ($data->id && $DB->record_exists('blog_external', array('id' => $data->id))) {
102
103                $rss = new moodle_simplepie($data->url);
104
105                $external->id = $data->id;
106                $external->name = (empty($data->name)) ? $rss->get_title() : $data->name;
107                $external->description = (empty($data->description)) ? $rss->get_description() : $data->description;
108                $external->userid = $USER->id;
109                $external->url = $data->url;
110                $external->filtertags = (!empty($data->filtertags)) ? $data->filtertags : null;
111                $external->timemodified = time();
112
113                $DB->update_record('blog_external', $external);
114
115                // Log this action.
116                $eventparms = array('context' => $context,
117                    'objectid' => $external->id,
118                    'other' => array('url' => $external->url));
119                $event = \core\event\blog_external_updated::create($eventparms);
120                $event->trigger();
121
122                core_tag_tag::set_item_tags('core', 'blog_external', $external->id,
123                        context_user::instance($external->userid), $data->autotags);
124            } else {
125                print_error('wrongexternalid', 'blog');
126            }
127
128            break;
129
130        default :
131            print_error('invalidaction');
132    }
133
134    redirect($returnurl);
135}
136
137navigation_node::override_active_url(new moodle_url('/blog/external_blogs.php'));
138$PAGE->navbar->add(get_string('addnewexternalblog', 'blog'));
139
140$PAGE->set_heading(fullname($USER));
141$PAGE->set_title("$SITE->shortname: $strblogs: $strexternalblogs");
142
143echo $OUTPUT->header();
144echo $OUTPUT->heading($strformheading, 2);
145
146$externalblogform->set_data($external);
147$externalblogform->display();
148
149echo $OUTPUT->footer();
150