mod/forum/view.php

   1 <?php  // $Id$
   2
   3     require_once('../../config.php');
   4     require_once('lib.php');
   5     require_once("$CFG->libdir/rsslib.php");
   6
   7
   8     $id          = optional_param('id', 0, PARAM_INT);       // Course Module ID
   9     $f           = optional_param('f', 0, PARAM_INT);        // Forum ID
  10     $mode        = optional_param('mode', 0, PARAM_INT);     // Display mode (for single forum)
  11     $showall     = optional_param('showall', '', PARAM_INT); // show all discussions on one page
  12     $changegroup = optional_param('group', -1, PARAM_INT);   // choose the current group
  13     $page        = optional_param('page', 0, PARAM_INT);     // which page to show
  14     $search      = optional_param('search', '');             // search string
  15
  16
  17
  18     if ($id) {
  19
  20         if (! $cm = get_coursemodule_from_id('forum', $id)) {
  21             error("Course Module ID was incorrect");
  22         }
  23         if (! $course = get_record("course", "id", $cm->course)) {
  24             error("Course is misconfigured");
  25         }
  26         if (! $forum = get_record("forum", "id", $cm->instance)) {
  27             error("Forum ID was incorrect");
  28         }
  29         $strforums = get_string("modulenameplural", "forum");
  30         $strforum = get_string("modulename", "forum");
  31         $buttontext = update_module_button($cm->id, $course->id, $strforum);
  32
  33     } else if ($f) {
  34
  35         if (! $forum = get_record("forum", "id", $f)) {
  36             error("Forum ID was incorrect or no longer exists");
  37         }
  38         if (! $course = get_record("course", "id", $forum->course)) {
  39             error("Forum is misconfigured - don't know what course it's from");
  40         }
  41
  42         $strforums = get_string("modulenameplural", "forum");
  43         $strforum = get_string("modulename", "forum");
  44
  45         if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
  46             $buttontext = update_module_button($cm->id, $course->id, $strforum);
  47         } else {
  48             $cm->id = 0;
  49             $cm->visible = 1;
  50             $cm->course = $course->id;
  51             $buttontext = "";
  52         }
  53     } else {
  54         error('Must specify a course module or a forum ID');
  55     }
  56
  57     if (!$buttontext) {
  58         $buttontext = forum_search_form($course, $search);
  59     }
  60
  61
  62     require_course_login($course, true, $cm);
  63     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  64
  65
  66 /// Print header.
  67     $crumbs[] = array('name' => $strforums, 'link' => "index.php?id=$course->id", 'type' => 'activity');
  68     $crumbs[] = array('name' => format_string($forum->name), 'link' => "view.php?f=$forum->id", 'type' => 'activityinstance');
  69
  70     $navigation = build_navigation($crumbs);
  71
  72     print_header_simple(format_string($forum->name), "",
  73                  $navigation, "", "", true, $buttontext, navmenu($course, $cm));
  74
  75
  76 /// Some capability checks.
  77     if (empty($cm->visible) and !has_capability('moodle/course:viewhiddenactivities', $context)) {
  78         notice(get_string("activityiscurrentlyhidden"));
  79     }
  80
  81     if (!has_capability('mod/forum:viewdiscussion', $context)) {
  82         notice(get_string('noviewdiscussionspermission', 'forum'));
  83     }
  84
  85     $groupmode = groupmode($course, $cm);
  86     $currentgroup = get_and_set_current_group($course, $groupmode, $changegroup);
  87
  88     if ($groupmode == SEPARATEGROUPS && ($currentgroup === false) &&
  89             !has_capability('moodle/site:accessallgroups', $context)) {
  90         notice(get_string('notingroup', 'forum'));
  91     }
  92
  93
  94
  95 /// Okay, we can show the discussions. Log the forum view.
  96     if ($cm->id) {
  97         add_to_log($course->id, "forum", "view forum", "view.php?id=$cm->id", "$forum->id", $cm->id);
  98     } else {
  99         add_to_log($course->id, "forum", "view forum", "view.php?f=$forum->id", "$forum->id");
 100     }
 101
 102
 103
 104 /// Print settings and things across the top
 105
 106     // If it's a simple single discussion forum, we need to print the display
 107     // mode control.
 108     if ($forum->type == 'single') {
 109         if (! $discussion = get_record("forum_discussions", "forum", $forum->id)) {
 110             if ($discussions = get_records("forum_discussions", "forum", $forum->id, "timemodified ASC")) {
 111                 $discussion = array_pop($discussions);
 112             }
 113         }
 114         if ($discussion) {
 115             if ($mode) {
 116                 set_user_preference("forum_displaymode", $mode);
 117             }
 118             $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
 119             forum_print_mode_form($forum->id, $displaymode, $forum->type);
 120         }
 121     }
 122
 123
 124     print_box_start('forumcontrol');
 125
 126     /// 2 ways to do this, 1. we can changed the setup_and_print_groups functions
 127     /// in moodlelib, taking in 1 more parameter, and tell the function when to
 128     /// allow student menus, 2, we can just use this code to explicitly print this
 129     /// menu for students in forums.
 130
 131     /// Now we need a menu for separategroups as well!
 132     if ($groupmode == VISIBLEGROUPS || ($groupmode
 133             && has_capability('moodle/site:accessallgroups', $context))) {
 134
 135         //the following query really needs to change
 136         if ($groups = groups_get_groups_names($course->id)) { //TODO:
 137             print_box_start('groupmenu');
 138             print_group_menu($groups, $groupmode, $currentgroup, "$CFG->wwwroot/mod/forum/view.php?id=$cm->id");
 139             print_box_end(); // groupmenu
 140         }
 141     }
 142
 143     /// Only print menus the student is in any course
 144     else if ($groupmode == SEPARATEGROUPS){
 145         $validgroups = array();
 146         // Get all the groups this guy is in in this course
 147
 148         if ($p = user_group($course->id,$USER->id)){
 149             /// Extract the name and id for the group
 150             foreach ($p as $index => $object){
 151                 $validgroups[$object->id] = $object->name;
 152             }
 153             /// Print them in the menu
 154             print_box_start('groupmenu');
 155             print_group_menu($validgroups, $groupmode, $currentgroup, "view.php?id=$cm->id",0);
 156             print_box_end(); // groupmenu
 157         }
 158     }
 159
 160     print_box_start('subscription');
 161
 162     if (!empty($USER->id) && !has_capability('moodle/legacy:guest', $context, NULL, false)) {
 163         $SESSION->fromdiscussion = "$FULLME";
 164         if (forum_is_forcesubscribed($forum->id)) {
 165             $streveryoneisnowsubscribed = get_string('everyoneisnowsubscribed', 'forum');
 166             $strallowchoice = get_string('allowchoice', 'forum');
 167             echo '<span class="helplink">' . get_string("forcessubscribe", 'forum') . '</span><br />';
 168             helpbutton("subscription", $strallowchoice, "forum");
 169             echo '&nbsp;<span class="helplink">';
 170             if (has_capability('moodle/course:manageactivities', $context)) {
 171                 echo "<a title=\"$strallowchoice\" href=\"subscribe.php?id=$forum->id&amp;force=no\">$strallowchoice</a>";
 172             } else {
 173                 echo $streveryoneisnowsubscribed;
 174             }
 175             echo '</span>';
 176
 177         } else if ($forum->forcesubscribe == FORUM_DISALLOWSUBSCRIBE) {
 178             $strsubscriptionsoff = get_string('disallowsubscribe','forum');
 179             echo $strsubscriptionsoff;
 180             helpbutton("subscription", $strsubscriptionsoff, "forum");
 181         } else {
 182             $streveryonecannowchoose = get_string("everyonecannowchoose", "forum");
 183             $strforcesubscribe = get_string("forcesubscribe", "forum");
 184             $strshowsubscribers = get_string("showsubscribers", "forum");
 185             echo '<span class="helplink">' . get_string("allowsallsubscribe", 'forum') . '</span><br />';
 186             helpbutton("subscription", $strforcesubscribe, "forum");
 187             echo '&nbsp;';
 188             if (has_capability('moodle/course:manageactivities', $context)) {
 189                 echo "<span class=\"helplink\"><a title=\"$strforcesubscribe\" href=\"subscribe.php?id=$forum->id&amp;force=yes\">$strforcesubscribe</a></span>";
 190                 echo "<br />";
 191                 echo "<span class=\"helplink\"><a href=\"subscribers.php?id=$forum->id\">$strshowsubscribers</a></span>";
 192             } else {
 193                 echo '<span class="helplink">'.$streveryonecannowchoose.'</span>';
 194             }
 195
 196             if (forum_is_subscribed($USER->id, $forum->id)) {
 197                 $subtexttitle = get_string("subscribestop", "forum");
 198                 $subtext = get_string("unsubscribe", "forum");
 199             } else {
 200                 $subtexttitle = get_string("subscribestart", "forum");
 201                 $subtext = get_string("subscribe", "forum");
 202             }
 203             echo "<br />";
 204             echo "<span class=\"helplink\"><a title=\"$subtexttitle\" href=\"subscribe.php?id=$forum->id\">$subtext</a></span>";
 205         }
 206
 207         if (forum_tp_can_track_forums($forum) && ($forum->trackingtype == FORUM_TRACKING_OPTIONAL)) {
 208             if (forum_tp_is_tracked($forum, $USER->id)) {
 209                 $trtitle = get_string('notrackforum', 'forum');
 210                 $trackedlink = '<a title="'.get_string('notrackforum', 'forum').'" href="settracking.php?id='.
 211                                $forum->id.'&amp;returnpage=view.php">'.get_string('forumtracked', 'forum').'</a>';
 212             } else {
 213                 $trtitle = get_string('trackforum', 'forum');
 214                 $trackedlink = '<a title="'.get_string('trackforum', 'forum').'" href="settracking.php?id='.
 215                                $forum->id.'&amp;returnpage=view.php">'.get_string('forumtrackednot', 'forum').'</a>';
 216             }
 217             echo '<br />';
 218             echo "<span class=\"helplink\">$trackedlink</span>";
 219         }
 220
 221     }
 222
 223     /// If rss are activated at site and forum level and this forum has rss defined, show link
 224     if (isset($CFG->enablerssfeeds) && isset($CFG->forum_enablerssfeeds) &&
 225         $CFG->enablerssfeeds && $CFG->forum_enablerssfeeds && $forum->rsstype and $forum->rssarticles) {
 226
 227         if ($forum->rsstype == 1) {
 228             $tooltiptext = get_string("rsssubscriberssdiscussions","forum",format_string($forum->name));
 229         } else {
 230             $tooltiptext = get_string("rsssubscriberssposts","forum",format_string($forum->name));
 231         }
 232         if (empty($USER->id)) {
 233             $userid = 0;
 234         } else {
 235             $userid = $USER->id;
 236         }
 237         print_box_start('rsslink');
 238         rss_print_link($course->id, $userid, "forum", $forum->id, $tooltiptext);
 239         print_box_end(); // subscription
 240
 241     }
 242     print_box_end(); // subscription
 243
 244     print_box_end();  // forumcontrol
 245
 246     print_box('&nbsp;', 'clearer');
 247
 248
 249     if (!empty($forum->blockafter) && !empty($forum->blockperiod)) {
 250         $a->blockafter = $forum->blockafter;
 251         $a->blockperiod = get_string('secondstotime'.$forum->blockperiod);
 252         notify(get_string('thisforumisthrottled','forum',$a));
 253     }
 254
 255     if ($forum->type == 'qanda' && !has_capability('moodle/course:manageactivities', $context)) {
 256         notify(get_string('qandanotify','forum'));
 257     }
 258
 259     $forum->intro = trim($forum->intro);
 260
 261     switch ($forum->type) {
 262         case 'single':
 263             if (! $discussion = get_record("forum_discussions", "forum", $forum->id)) {
 264                 if ($discussions = get_records("forum_discussions", "forum", $forum->id, "timemodified ASC")) {
 265                     notify("Warning! There is more than one discussion in this forum - using the most recent");
 266                     $discussion = array_pop($discussions);
 267                 } else {
 268                     error("Could not find the discussion in this forum");
 269                 }
 270             }
 271             if (! $post = forum_get_post_full($discussion->firstpost)) {
 272                 error("Could not find the first post in this forum");
 273             }
 274             if ($mode) {
 275                 set_user_preference("forum_displaymode", $mode);
 276             }
 277             $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
 278             $canrate = has_capability('mod/forum:rate', $context);
 279             forum_print_discussion($course, $forum, $discussion, $post, $displaymode, NULL, $canrate);
 280             break;
 281
 282         case 'eachuser':
 283             if (!empty($forum->intro)) {
 284                 print_box(format_text($forum->intro), 'generalbox', 'intro');
 285             }
 286             echo '<p align="center">';
 287             if (forum_user_can_post_discussion($forum)) {
 288                 print_string("allowsdiscussions", "forum");
 289             } else {
 290                 echo '&nbsp;';
 291             }
 292             echo '</p>';
 293             if (!empty($showall)) {
 294                 forum_print_latest_discussions($course, $forum, 0, 'header', '', $currentgroup, $groupmode);
 295             } else {
 296                 forum_print_latest_discussions($course, $forum, $CFG->forum_manydiscussions, 'header', '', $currentgroup, $groupmode, $page);
 297             }
 298             break;
 299
 300         case 'teacher':
 301             if (!empty($showall)) {
 302                 forum_print_latest_discussions($course, $forum, 0, 'header', '', $currentgroup, $groupmode);
 303             } else {
 304                 forum_print_latest_discussions($course, $forum, $CFG->forum_manydiscussions, 'header', '', $currentgroup, $groupmode, $page);
 305             }
 306             break;
 307
 308         default:
 309             if (!empty($forum->intro)) {
 310                 print_box(format_text($forum->intro), 'generalbox', 'intro');
 311             }
 312             echo '<br />';
 313             if (!empty($showall)) {
 314                 forum_print_latest_discussions($course, $forum, 0, 'header', '', $currentgroup, $groupmode);
 315             } else {
 316                 forum_print_latest_discussions($course, $forum, $CFG->forum_manydiscussions, 'header', '', $currentgroup, $groupmode, $page);
 317             }
 318
 319
 320             break;
 321     }
 322     print_footer($course);
 323
 324 ?>