mod/forum/view.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * @package   mod_forum
  20  * @copyright 1999 onwards Martin Dougiamas  {@link http://moodle.com}
  21  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22  */
  23
  24     require_once('../../config.php');
  25     require_once('lib.php');
  26     require_once($CFG->libdir.'/completionlib.php');
  27
  28     $id          = optional_param('id', 0, PARAM_INT);       // Course Module ID
  29     $f           = optional_param('f', 0, PARAM_INT);        // Forum ID
  30     $mode        = optional_param('mode', 0, PARAM_INT);     // Display mode (for single forum)
  31     $showall     = optional_param('showall', '', PARAM_INT); // show all discussions on one page
  32     $changegroup = optional_param('group', -1, PARAM_INT);   // choose the current group
  33     $page        = optional_param('page', 0, PARAM_INT);     // which page to show
  34     $search      = optional_param('search', '', PARAM_CLEAN);// search string
  35
  36     $params = array();
  37     if ($id) {
  38         $params['id'] = $id;
  39     } else {
  40         $params['f'] = $f;
  41     }
  42     if ($page) {
  43         $params['page'] = $page;
  44     }
  45     if ($search) {
  46         $params['search'] = $search;
  47     }
  48     $PAGE->set_url('/mod/forum/view.php', $params);
  49
  50     if ($id) {
  51         if (! $cm = get_coursemodule_from_id('forum', $id)) {
  52             print_error('invalidcoursemodule');
  53         }
  54         if (! $course = $DB->get_record("course", array("id" => $cm->course))) {
  55             print_error('coursemisconf');
  56         }
  57         if (! $forum = $DB->get_record("forum", array("id" => $cm->instance))) {
  58             print_error('invalidforumid', 'forum');
  59         }
  60         if ($forum->type == 'single') {
  61             $PAGE->set_pagetype('mod-forum-discuss');
  62         }
  63         // move require_course_login here to use forced language for course
  64         // fix for MDL-6926
  65         require_course_login($course, true, $cm);
  66         $strforums = get_string("modulenameplural", "forum");
  67         $strforum = get_string("modulename", "forum");
  68     } else if ($f) {
  69
  70         if (! $forum = $DB->get_record("forum", array("id" => $f))) {
  71             print_error('invalidforumid', 'forum');
  72         }
  73         if (! $course = $DB->get_record("course", array("id" => $forum->course))) {
  74             print_error('coursemisconf');
  75         }
  76
  77         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
  78             print_error('missingparameter');
  79         }
  80         // move require_course_login here to use forced language for course
  81         // fix for MDL-6926
  82         require_course_login($course, true, $cm);
  83         $strforums = get_string("modulenameplural", "forum");
  84         $strforum = get_string("modulename", "forum");
  85     } else {
  86         print_error('missingparameter');
  87     }
  88
  89     if (!$PAGE->button) {
  90         $PAGE->set_button(forum_search_form($course, $search));
  91     }
  92
  93     $context = context_module::instance($cm->id);
  94     $PAGE->set_context($context);
  95
  96     if (!empty($CFG->enablerssfeeds) && !empty($CFG->forum_enablerssfeeds) && $forum->rsstype && $forum->rssarticles) {
  97         require_once("$CFG->libdir/rsslib.php");
  98
  99         $rsstitle = format_string($course->shortname, true, array('context' => context_course::instance($course->id))) . ': ' . format_string($forum->name);
 100         rss_add_http_header($context, 'mod_forum', $forum, $rsstitle);
 101     }
 102
 103 /// Print header.
 104
 105     $PAGE->set_title($forum->name);
 106     $PAGE->add_body_class('forumtype-'.$forum->type);
 107     $PAGE->set_heading($course->fullname);
 108
 109     // Some capability checks.
 110     $courselink = new moodle_url('/course/view.php', ['id' => $cm->course]);
 111
 112     if (empty($cm->visible) and !has_capability('moodle/course:viewhiddenactivities', $context)) {
 113         notice(get_string("activityiscurrentlyhidden"), $courselink);
 114     }
 115
 116     if (!has_capability('mod/forum:viewdiscussion', $context)) {
 117         notice(get_string('noviewdiscussionspermission', 'forum'), $courselink);
 118     }
 119
 120     // Mark viewed and trigger the course_module_viewed event.
 121     forum_view($forum, $course, $cm, $context);
 122
 123     echo $OUTPUT->header();
 124
 125     echo $OUTPUT->heading(format_string($forum->name), 2);
 126     if (!empty($forum->intro) && $forum->type != 'single' && $forum->type != 'teacher') {
 127         echo $OUTPUT->box(format_module_intro('forum', $forum, $cm->id), 'generalbox', 'intro');
 128     }
 129
 130 /// find out current groups mode
 131     groups_print_activity_menu($cm, $CFG->wwwroot . '/mod/forum/view.php?id=' . $cm->id);
 132
 133     $SESSION->fromdiscussion = qualified_me();   // Return here if we post or set subscription etc
 134
 135
 136 /// Print settings and things across the top
 137
 138     // If it's a simple single discussion forum, we need to print the display
 139     // mode control.
 140     if ($forum->type == 'single') {
 141         $discussion = NULL;
 142         $discussions = $DB->get_records('forum_discussions', array('forum'=>$forum->id), 'timemodified ASC');
 143         if (!empty($discussions)) {
 144             $discussion = array_pop($discussions);
 145         }
 146         if ($discussion) {
 147             if ($mode) {
 148                 set_user_preference("forum_displaymode", $mode);
 149             }
 150             $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
 151             forum_print_mode_form($forum->id, $displaymode, $forum->type);
 152         }
 153     }
 154
 155     if (!empty($forum->blockafter) && !empty($forum->blockperiod)) {
 156         $a = new stdClass();
 157         $a->blockafter = $forum->blockafter;
 158         $a->blockperiod = get_string('secondstotime'.$forum->blockperiod);
 159         echo $OUTPUT->notification(get_string('thisforumisthrottled', 'forum', $a));
 160     }
 161
 162     if ($forum->type == 'qanda' && !has_capability('moodle/course:manageactivities', $context)) {
 163         echo $OUTPUT->notification(get_string('qandanotify','forum'));
 164     }
 165
 166     switch ($forum->type) {
 167         case 'single':
 168             if (!empty($discussions) && count($discussions) > 1) {
 169                 echo $OUTPUT->notification(get_string('warnformorepost', 'forum'));
 170             }
 171             if (! $post = forum_get_post_full($discussion->firstpost)) {
 172                 print_error('cannotfindfirstpost', 'forum');
 173             }
 174             if ($mode) {
 175                 set_user_preference("forum_displaymode", $mode);
 176             }
 177
 178             $canreply    = forum_user_can_post($forum, $discussion, $USER, $cm, $course, $context);
 179             $canrate     = has_capability('mod/forum:rate', $context);
 180             $displaymode = get_user_preferences("forum_displaymode", $CFG->forum_displaymode);
 181
 182             echo '&nbsp;'; // this should fix the floating in FF
 183             forum_print_discussion($course, $cm, $forum, $discussion, $post, $displaymode, $canreply, $canrate);
 184             break;
 185
 186         case 'eachuser':
 187             echo '<p class="mdl-align">';
 188             if (forum_user_can_post_discussion($forum, null, -1, $cm)) {
 189                 print_string("allowsdiscussions", "forum");
 190             } else {
 191                 echo '&nbsp;';
 192             }
 193             echo '</p>';
 194             if (!empty($showall)) {
 195                 forum_print_latest_discussions($course, $forum, 0, 'header', '', -1, -1, -1, 0, $cm);
 196             } else {
 197                 forum_print_latest_discussions($course, $forum, -1, 'header', '', -1, -1, $page, $CFG->forum_manydiscussions, $cm);
 198             }
 199             break;
 200
 201         case 'teacher':
 202             if (!empty($showall)) {
 203                 forum_print_latest_discussions($course, $forum, 0, 'header', '', -1, -1, -1, 0, $cm);
 204             } else {
 205                 forum_print_latest_discussions($course, $forum, -1, 'header', '', -1, -1, $page, $CFG->forum_manydiscussions, $cm);
 206             }
 207             break;
 208
 209         case 'blog':
 210             echo '<br />';
 211             if (!empty($showall)) {
 212                 forum_print_latest_discussions($course, $forum, 0, 'plain', 'd.pinned DESC, p.created DESC', -1, -1, -1, 0, $cm);
 213             } else {
 214                 forum_print_latest_discussions($course, $forum, -1, 'plain', 'd.pinned DESC, p.created DESC', -1, -1, $page,
 215                     $CFG->forum_manydiscussions, $cm);
 216             }
 217             break;
 218
 219         default:
 220             echo '<br />';
 221             if (!empty($showall)) {
 222                 forum_print_latest_discussions($course, $forum, 0, 'header', '', -1, -1, -1, 0, $cm);
 223             } else {
 224                 forum_print_latest_discussions($course, $forum, -1, 'header', '', -1, -1, $page, $CFG->forum_manydiscussions, $cm);
 225             }
 226
 227
 228             break;
 229     }
 230
 231     // Add the subscription toggle JS.
 232     $PAGE->requires->yui_module('moodle-mod_forum-subscriptiontoggle', 'Y.M.mod_forum.subscriptiontoggle.init');
 233
 234     echo $OUTPUT->footer($course);