added $selected to the list of tabs without links. It is better not to offer a link...
[moodle.git] / mod / forum / discuss.php
CommitLineData
41905731 1<?php // $Id$
501cdbd8 2
3// Displays a post, and all the posts below it.
4// If no post is given, displays all posts in a discussion
5
b0e3a925 6 require_once("../../config.php");
7 require_once("lib.php");
501cdbd8 8
9 require_variable($d); // Discussion ID
10 optional_variable($parent); // If set, then display this post and all children.
11 optional_variable($mode); // If set, changes the layout of the thread
1fc49f00 12 optional_variable($move); // If set, moves this discussion to another forum
f37da850 13 optional_variable($mark); // Used for tracking read posts if user initiated.
14 optional_variable($postid); // Used for tracking read posts if user initiated.
501cdbd8 15
16 if (! $discussion = get_record("forum_discussions", "id", $d)) {
94361e02 17 error("Discussion ID was incorrect or no longer exists");
501cdbd8 18 }
19
20 if (! $course = get_record("course", "id", $discussion->course)) {
21 error("Course ID is incorrect - discussion is faulty");
22 }
23
68258534 24 if (! $forum = get_record("forum", "id", $discussion->forum)) {
25 notify("Bad forum ID stored in this discussion");
26 }
27
28 if ($forum->type == "teacher") {
29 require_login($course->id);
30
31 if (!isteacher($course->id)) {
32 error("You must be a $course->teacher to view this forum");
33 }
34
35 } else {
36 if (! $cm = get_coursemodule_from_instance("forum", $discussion->forum, $course->id)) {
37 error("Course Module ID was incorrect");
38 }
39 require_course_login($course, false, $cm);
68ddf8bc 40 }
41
1fc49f00 42
8f0cd6ef 43 if (!empty($move)) {
1fc49f00 44 if (!isteacher($course->id)) {
45 error("Only teachers can do that!");
46 }
47 if ($forum = get_record("forum", "id", $move)) {
cc2b7ea5 48 if (!forum_move_attachments($discussion, $move)) {
49 notify("Errors occurred while moving attachment directories - check your file permissions");
50 }
1fc49f00 51 set_field("forum_discussions", "forum", $forum->id, "id", $discussion->id);
52 $discussion->forum = $forum->id;
69d79bc3 53 if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
54 add_to_log($course->id, "forum", "move discussion", "discuss.php?d=$discussion->id", "$discussion->id",
55 $cm->id);
56 } else {
57 add_to_log($course->id, "forum", "move discussion", "discuss.php?d=$discussion->id", "$discussion->id");
58 }
8de14dc7 59 $discussionmoved = true;
1fc49f00 60 } else {
61 error("You can't move to that forum - it doesn't exist!");
62 }
63 }
64
fce9c67b 65
1fc49f00 66 $logparameters = "d=$discussion->id";
67 if ($parent) {
839f2456 68 $logparameters .= "&amp;parent=$parent";
501cdbd8 69 }
69d79bc3 70
71 if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
72 add_to_log($course->id, "forum", "view discussion", "discuss.php?$logparameters", "$discussion->id", $cm->id);
73 } else {
74 add_to_log($course->id, "forum", "view discussion", "discuss.php?$logparameters", "$discussion->id");
75 }
501cdbd8 76
77 unset($SESSION->fromdiscussion);
78
279826e2 79 if ($mode) {
80 set_user_preference("forum_displaymode", $mode);
81 }
501cdbd8 82
279826e2 83 $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
501cdbd8 84
e92ea3d8 85 if ($parent) {
279826e2 86 if (abs($displaymode) == 1) { // If flat AND parent, then force nested display this time
e92ea3d8 87 $displaymode = 3;
88 }
89 } else {
501cdbd8 90 $parent = $discussion->firstpost;
c78ac798 91 $navtail = format_string($discussion->name);
501cdbd8 92 }
93
11b0c469 94 if (! $post = forum_get_post_full($parent)) {
501cdbd8 95 error("Discussion no longer exists", "$CFG->wwwroot/mod/forum/view.php?f=$forum->id");
96 }
97
eaf50aef 98 if (forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum) &&
99 $CFG->forum_usermarksread) {
f37da850 100 if ($mark == 'read') {
101 forum_tp_add_read_record($USER->id, $postid, $discussion->id, $forum->id);
102 } else if ($mark == 'unread') {
103 forum_tp_delete_read_records($USER->id, $postid);
104 }
105 }
106
61e96406 107 if (empty($navtail)) {
c78ac798 108 $navtail = "<a href=\"discuss.php?d=$discussion->id\">".format_string($discussion->name,true)."</a> -> ".format_string($post->subject);
501cdbd8 109 }
110
3849dae8 111 $navmiddle = "<a href=\"../forum/index.php?id=$course->id\">".get_string("forums", "forum")."</a> -> <a href=\"../forum/view.php?f=$forum->id\">".format_string($forum->name,true)."</a>";
501cdbd8 112
6f1cc8d6 113 $searchform = forum_search_form($course);
97485d07 114
501cdbd8 115 if ($course->category) {
c78ac798 116 print_header("$course->shortname: ".format_string($discussion->name), "$course->fullname",
72b4e283 117 "<a href=\"../../course/view.php?id=$course->id\">$course->shortname</a> ->
8f0cd6ef 118 $navmiddle -> $navtail", "", "", true, $searchform, navmenu($course, $cm));
501cdbd8 119 } else {
c78ac798 120 print_header("$course->shortname: ".format_string($discussion->name), "$course->fullname",
8f0cd6ef 121 "$navmiddle -> $navtail", "", "", true, $searchform, navmenu($course, $cm));
501cdbd8 122 }
123
c6d691dc 124
9197e147 125/// Check to see if groups are being used in this forum
126/// If so, make sure the current person is allowed to see this discussion
c6d691dc 127/// Also, if we know they should be able to reply, then explicitly set $canreply
128
129 $canreply = NULL; /// No override one way or the other
9197e147 130
52b201ee 131 if ($forum->type == "teacher") {
132 $groupmode = NOGROUPS;
133 } else {
134 $groupmode = groupmode($course, $cm);
135 }
9197e147 136
c6d691dc 137 if ($groupmode and !isteacheredit($course->id)) { // Groups must be kept separate
af3014b4 138 $mygroupid = mygroupid($course->id);
139
c6d691dc 140 if ($groupmode == SEPARATEGROUPS) {
141 require_login();
142
af3014b4 143 if ((empty($mygroupid) and $discussion->groupid == -1) || ($mygroupid == $discussion->groupid)) {
c6d691dc 144 $canreply = true;
2862b309 145 } elseif ($discussion->groupid == -1) {
146 $canreply = false;
c6d691dc 147 } else {
148 print_heading("Sorry, you can't see this discussion because you are not in this group");
cd8d4471 149 print_footer($course);
c6d691dc 150 die;
151 }
152
153 } else if ($groupmode == VISIBLEGROUPS) {
af3014b4 154 $canreply = ((empty($mygroupid) and $discussion->groupid == -1) || ($mygroupid == $discussion->groupid));
9197e147 155 }
156 }
157
158
c6d691dc 159/// Print the controls across the top
160
d5bbc556 161 echo '<table width="100%"><tr><td width="33%">';
c6d691dc 162
163 if ($groupmode == VISIBLEGROUPS or ($groupmode and isteacheredit($course->id))) {
d5bbc556 164 if ($groups = get_records_menu('groups', 'courseid', $course->id, 'name ASC', 'id,name')) {
839f2456 165 print_group_menu($groups, $groupmode, $discussion->groupid, "view.php?id=$cm->id&amp;group=");
c6d691dc 166 }
167 }
168
169 echo "</td><td width=\"33%\">";
ec9c0d44 170 forum_print_mode_form($discussion->id, $displaymode);
c6d691dc 171
02ebf404 172 echo "</td><td width=\"33%\">";
768f90f6 173 if (isteacher($course->id) && $forum->type != "teacher") { // Popup menu to move discussions to other forums
cccb016a 174 if ($forums = get_all_instances_in_course("forum", $course)) {
fcc69042 175 if ($course->format == 'weeks') {
176 $strsection = get_string("week");
177 } else {
178 $strsection = get_string("topic");
179 }
180 $section = -1;
1fc49f00 181 foreach ($forums as $courseforum) {
fcc69042 182 if (!empty($courseforum->section) and $section != $courseforum->section) {
183 $forummenu[] = "-------------- $strsection $courseforum->section --------------";
184 }
185 $section = $courseforum->section;
1fc49f00 186 if ($courseforum->id != $forum->id) {
839f2456 187 $url = "discuss.php?d=$discussion->id&amp;move=$courseforum->id";
3849dae8 188 $forummenu[$url] = format_string($courseforum->name,true);
1fc49f00 189 }
190 }
191 if (!empty($forummenu)) {
192 echo "<div align=\"right\">";
8f0cd6ef 193 echo popup_form("$CFG->wwwroot/mod/forum/", $forummenu, "forummenu", "",
1fc49f00 194 get_string("movethisdiscussionto", "forum"), "", "", true);
195 echo "</div>";
196 }
197 }
198 }
02ebf404 199 echo "</td></tr></table>";
1fc49f00 200
8de14dc7 201 if (isset($discussionmoved)) {
3849dae8 202 notify(get_string("discussionmoved", "forum", format_string($forum->name,true)));
8de14dc7 203 }
204
c6d691dc 205
206/// Print the actual discussion
207
208 forum_print_discussion($course, $forum, $discussion, $post, $displaymode, $canreply);
209
501cdbd8 210 print_footer($course);
211
212?>