MDL-14303, add missing cmidnumber parameter. see tracker
[moodle-linuxchix.git] / blog / index.php
blobfa516928c53f98e35348f0ce0940fdec3362f781
1 <?php // $Id$
3 /**
4 * file index.php
5 * index page to view blogs. if no blog is specified then site wide entries are shown
6 * if a blog id is specified then the latest entries from that blog are shown
7 */
9 require_once('../config.php');
10 require_once($CFG->dirroot .'/blog/lib.php');
11 require_once($CFG->libdir .'/blocklib.php');
13 $id = optional_param('id', 0, PARAM_INT);
14 $start = optional_param('formstart', 0, PARAM_INT);
15 $userid = optional_param('userid', 0, PARAM_INT);
16 $tag = optional_param('tag', '', PARAM_NOTAGS);
17 $tagid = optional_param('tagid', 0, PARAM_INT);
18 $postid = optional_param('postid', 0, PARAM_INT);
19 $filtertype = optional_param('filtertype', '', PARAM_ALPHA);
20 $filterselect = optional_param('filterselect', 0, PARAM_INT);
22 $edit = optional_param('edit', -1, PARAM_BOOL);
23 $courseid = optional_param('courseid', 0, PARAM_INT); // needed for user tabs and course tracking
26 if (empty($CFG->bloglevel)) {
27 error('Blogging is disabled!');
30 $sitecontext = get_context_instance(CONTEXT_SYSTEM, SITEID);
33 // change block edit staus if not guest and logged in
34 if (isloggedin() and !isguest() and $edit != -1) {
35 $SESSION->blog_editing_enabled = $edit;
38 if (empty($filtertype)) {
39 if ($userid) { // default to user if specified
40 $filtertype = 'user';
41 $filterselect = $userid;
42 } else if (has_capability('moodle/blog:view', $sitecontext) and $CFG->bloglevel > BLOG_USER_LEVEL) {
43 if ($postid) {
44 $filtertype = 'user';
45 if (!$postobject = get_record('post', 'module', 'blog', 'id', $postid)) {
46 error('No such blog entry');
48 $filterselect = $postobject->userid;
49 } else {
50 $filtertype = 'site';
51 $filterselect = '';
53 } else {
54 // user might have capability to write blogs, but not read blogs at site level
55 // users might enter this url manually without parameters
56 $filtertype = 'user';
57 $filterselect = $USER->id;
60 /// check access and prepare filters
62 switch ($filtertype) {
64 case 'site':
65 if ($CFG->bloglevel < BLOG_SITE_LEVEL) {
66 error('Site blogs is not enabled');
68 if ($CFG->bloglevel < BLOG_GLOBAL_LEVEL) {
69 require_login();
71 if (!has_capability('moodle/blog:view', $sitecontext)) {
72 error('You do not have the required permissions to view all site blogs');
74 break;
76 case 'course':
77 if ($CFG->bloglevel < BLOG_COURSE_LEVEL) {
78 error('Course blogs is not enabled');
80 if (!$course = get_record('course', 'id', $filterselect)) {
81 error('Incorrect course id specified');
83 $courseid = $course->id;
84 $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
85 require_login($course);
86 if (!has_capability('moodle/blog:view', $coursecontext)) {
87 error('You do not have the required permissions to view blogs in this course');
89 break;
91 case 'group':
92 if ($CFG->bloglevel < BLOG_GROUP_LEVEL) {
93 error('Group blogs is not enabled');
96 // fix for MDL-9268
97 if (! $group = groups_get_group($filterselect)) { //TODO:check.
98 error('Incorrect group id specified');
100 if (!$course = get_record('course', 'id', $group->courseid)) {
101 error('Incorrect course id specified');
103 $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
104 $courseid = $course->id;
105 require_login($course);
106 if (!has_capability('moodle/blog:view', $coursecontext)) {
107 error('You do not have the required permissions to view blogs in this course/group');
109 if (groups_get_course_groupmode($course) == SEPARATEGROUPS
110 and !has_capability('moodle/site:accessallgroups', $coursecontext)) {
111 if (!groups_is_member($filterselect)) {
112 error ('You are not a member of this course group');
116 break;
118 case 'user':
119 if ($CFG->bloglevel < BLOG_USER_LEVEL) {
120 error('Blogs is not enabled');
122 if (!$user = get_record('user', 'id', $filterselect)) {
123 error('Incorrect user id');
125 if ($USER->id == $filterselect) {
126 if (!has_capability('moodle/blog:create', $sitecontext)
127 and !has_capability('moodle/blog:view', $sitecontext)) {
128 error('You do not have your own blog, sorry.');
130 } else {
131 $personalcontext = get_context_instance(CONTEXT_USER, $filterselect);
132 if (!has_capability('moodle/blog:view', $sitecontext)
133 and !has_capability('moodle/user:readuserblogs', $personalcontext)) {
134 error('You do not have the required permissions to read user blogs');
136 if (!blog_user_can_view_user_post($filterselect)) {
137 error('You can not view blog of this user, sorry.');
140 $userid = $filterselect;
142 if (!empty($courseid)) {
143 require_login($courseid);
146 break;
148 default:
149 error('Incorrect blog filter type specified');
150 break;
153 if (empty($courseid)) {
154 $courseid = SITEID;
157 include($CFG->dirroot .'/blog/header.php');
159 blog_print_html_formatted_entries($postid, $filtertype, $filterselect, $tagid, $tag);
161 add_to_log($courseid, 'blog', 'view', 'index.php?filtertype='.$filtertype.'&amp;filterselect='.$filterselect.'&amp;postid='.$postid.'&amp;tagid='.$tagid.'&amp;tag='.$tag, 'view blog entry');
163 include($CFG->dirroot .'/blog/footer.php');