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     $navlinks = array();
  68     $navlinks[] = array('name' => $strforums, 'link' => "index.php?id=$course->id", 'type' => 'activity');
  69     $navlinks[] = array('name' => format_string($forum->name), 'link' => "view.php?f=$forum->id", 'type' => 'activityinstance');
  70
  71     $navigation = build_navigation($navlinks);
  72
  73     print_header_simple(format_string($forum->name), "",
  74                  $navigation, "", "", true, $buttontext, navmenu($course, $cm));
  75
  76
  77 /// Some capability checks.
  78     if (empty($cm->visible) and !has_capability('moodle/course:viewhiddenactivities', $context)) {
  79         notice(get_string("activityiscurrentlyhidden"));
  80     }
  81
  82     if (!has_capability('mod/forum:viewdiscussion', $context)) {
  83         notice(get_string('noviewdiscussionspermission', 'forum'));
  84     }
  85
  86 /// find out current groups mode
  87     $groupmode = groupmode($course, $cm);
  88     $currentgroup = setup_and_print_groups($course, $groupmode, 'view.php?id=' . $cm->id);
  89
  90 /// Okay, we can show the discussions. Log the forum view.
  91     if ($cm->id) {
  92         add_to_log($course->id, "forum", "view forum", "view.php?id=$cm->id", "$forum->id", $cm->id);
  93     } else {
  94         add_to_log($course->id, "forum", "view forum", "view.php?f=$forum->id", "$forum->id");
  95     }
  96
  97
  98
  99 /// Print settings and things across the top
 100
 101     // If it's a simple single discussion forum, we need to print the display
 102     // mode control.
 103     if ($forum->type == 'single') {
 104         if (! $discussion = get_record("forum_discussions", "forum", $forum->id)) {
 105             if ($discussions = get_records("forum_discussions", "forum", $forum->id, "timemodified ASC")) {
 106                 $discussion = array_pop($discussions);
 107             }
 108         }
 109         if ($discussion) {
 110             if ($mode) {
 111                 set_user_preference("forum_displaymode", $mode);
 112             }
 113             $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
 114             forum_print_mode_form($forum->id, $displaymode, $forum->type);
 115         }
 116     }
 117
 118
 119     print_box_start('forumcontrol');
 120
 121     print_box_start('subscription');
 122
 123     if (!empty($USER->id) && !has_capability('moodle/legacy:guest', $context, NULL, false)) {
 124         $SESSION->fromdiscussion = "$FULLME";
 125         if (forum_is_forcesubscribed($forum->id)) {
 126             $streveryoneisnowsubscribed = get_string('everyoneisnowsubscribed', 'forum');
 127             $strallowchoice = get_string('allowchoice', 'forum');
 128             echo '<span class="helplink">' . get_string("forcessubscribe", 'forum') . '</span><br />';
 129             helpbutton("subscription", $strallowchoice, "forum");
 130             echo '&nbsp;<span class="helplink">';
 131             if (has_capability('moodle/course:manageactivities', $context)) {
 132                 echo "<a title=\"$strallowchoice\" href=\"subscribe.php?id=$forum->id&amp;force=no\">$strallowchoice</a>";
 133             } else {
 134                 echo $streveryoneisnowsubscribed;
 135             }
 136             echo '</span>';
 137
 138         } else if ($forum->forcesubscribe == FORUM_DISALLOWSUBSCRIBE) {
 139             $strsubscriptionsoff = get_string('disallowsubscribe','forum');
 140             echo $strsubscriptionsoff;
 141             helpbutton("subscription", $strsubscriptionsoff, "forum");
 142         } else {
 143             $streveryonecannowchoose = get_string("everyonecannowchoose", "forum");
 144             $strforcesubscribe = get_string("forcesubscribe", "forum");
 145             $strshowsubscribers = get_string("showsubscribers", "forum");
 146             echo '<span class="helplink">' . get_string("allowsallsubscribe", 'forum') . '</span><br />';
 147             helpbutton("subscription", $strforcesubscribe, "forum");
 148             echo '&nbsp;';
 149             if (has_capability('moodle/course:manageactivities', $context)) {
 150                 echo "<span class=\"helplink\"><a title=\"$strforcesubscribe\" href=\"subscribe.php?id=$forum->id&amp;force=yes\">$strforcesubscribe</a></span>";
 151                 echo "<br />";
 152                 echo "<span class=\"helplink\"><a href=\"subscribers.php?id=$forum->id\">$strshowsubscribers</a></span>";
 153             } else {
 154                 echo '<span class="helplink">'.$streveryonecannowchoose.'</span>';
 155             }
 156
 157             echo '<br /><span class="helplink">', forum_get_subscribe_link($forum, $context,
 158                     array('forcesubscribed' => '', 'cantsubscribe' => '')), '</span>';
 159         }
 160
 161         if (forum_tp_can_track_forums($forum) && ($forum->trackingtype == FORUM_TRACKING_OPTIONAL)) {
 162             if (forum_tp_is_tracked($forum, $USER->id)) {
 163                 $trtitle = get_string('notrackforum', 'forum');
 164                 $trackedlink = '<a title="'.get_string('notrackforum', 'forum').'" href="settracking.php?id='.
 165                                $forum->id.'&amp;returnpage=view.php">'.get_string('forumtracked', 'forum').'</a>';
 166             } else {
 167                 $trtitle = get_string('trackforum', 'forum');
 168                 $trackedlink = '<a title="'.get_string('trackforum', 'forum').'" href="settracking.php?id='.
 169                                $forum->id.'&amp;returnpage=view.php">'.get_string('forumtrackednot', 'forum').'</a>';
 170             }
 171             echo '<br />';
 172             echo "<span class=\"helplink\">$trackedlink</span>";
 173         }
 174
 175     }
 176
 177     /// If rss are activated at site and forum level and this forum has rss defined, show link
 178     if (isset($CFG->enablerssfeeds) && isset($CFG->forum_enablerssfeeds) &&
 179         $CFG->enablerssfeeds && $CFG->forum_enablerssfeeds && $forum->rsstype and $forum->rssarticles) {
 180
 181         if ($forum->rsstype == 1) {
 182             $tooltiptext = get_string("rsssubscriberssdiscussions","forum",format_string($forum->name));
 183         } else {
 184             $tooltiptext = get_string("rsssubscriberssposts","forum",format_string($forum->name));
 185         }
 186         if (empty($USER->id)) {
 187             $userid = 0;
 188         } else {
 189             $userid = $USER->id;
 190         }
 191         print_box_start('rsslink');
 192         rss_print_link($course->id, $userid, "forum", $forum->id, $tooltiptext);
 193         print_box_end(); // subscription
 194
 195     }
 196     print_box_end(); // subscription
 197
 198     print_box_end();  // forumcontrol
 199
 200     print_box('&nbsp;', 'clearer');
 201
 202
 203     if (!empty($forum->blockafter) && !empty($forum->blockperiod)) {
 204         $a->blockafter = $forum->blockafter;
 205         $a->blockperiod = get_string('secondstotime'.$forum->blockperiod);
 206         notify(get_string('thisforumisthrottled','forum',$a));
 207     }
 208
 209     if ($forum->type == 'qanda' && !has_capability('moodle/course:manageactivities', $context)) {
 210         notify(get_string('qandanotify','forum'));
 211     }
 212
 213     $forum->intro = trim($forum->intro);
 214
 215     switch ($forum->type) {
 216         case 'single':
 217             if (! $discussion = get_record("forum_discussions", "forum", $forum->id)) {
 218                 if ($discussions = get_records("forum_discussions", "forum", $forum->id, "timemodified ASC")) {
 219                     notify("Warning! There is more than one discussion in this forum - using the most recent");
 220                     $discussion = array_pop($discussions);
 221                 } else {
 222                     error("Could not find the discussion in this forum");
 223                 }
 224             }
 225             if (! $post = forum_get_post_full($discussion->firstpost)) {
 226                 error("Could not find the first post in this forum");
 227             }
 228             if ($mode) {
 229                 set_user_preference("forum_displaymode", $mode);
 230             }
 231             $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
 232             $canrate = has_capability('mod/forum:rate', $context);
 233             forum_print_discussion($course, $forum, $discussion, $post, $displaymode, NULL, $canrate);
 234             break;
 235
 236         case 'eachuser':
 237             if (!empty($forum->intro)) {
 238                 print_box(format_text($forum->intro), 'generalbox', 'intro');
 239             }
 240             echo '<p align="center">';
 241             if (forum_user_can_post_discussion($forum)) {
 242                 print_string("allowsdiscussions", "forum");
 243             } else {
 244                 echo '&nbsp;';
 245             }
 246             echo '</p>';
 247             if (!empty($showall)) {
 248                 forum_print_latest_discussions($course, $forum, 0, 'header', '', $currentgroup, $groupmode);
 249             } else {
 250                 forum_print_latest_discussions($course, $forum, $CFG->forum_manydiscussions, 'header', '', $currentgroup, $groupmode, $page);
 251             }
 252             break;
 253
 254         case 'teacher':
 255             if (!empty($showall)) {
 256                 forum_print_latest_discussions($course, $forum, 0, 'header', '', $currentgroup, $groupmode);
 257             } else {
 258                 forum_print_latest_discussions($course, $forum, $CFG->forum_manydiscussions, 'header', '', $currentgroup, $groupmode, $page);
 259             }
 260             break;
 261
 262         default:
 263             if (!empty($forum->intro)) {
 264                 print_box(format_text($forum->intro), 'generalbox', 'intro');
 265             }
 266             echo '<br />';
 267             if (!empty($showall)) {
 268                 forum_print_latest_discussions($course, $forum, 0, 'header', '', $currentgroup, $groupmode);
 269             } else {
 270                 forum_print_latest_discussions($course, $forum, $CFG->forum_manydiscussions, 'header', '', $currentgroup, $groupmode, $page);
 271             }
 272
 273
 274             break;
 275     }
 276     print_footer($course);
 277
 278 ?>