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PHP Cross Reference of moodle-2.8 |
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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 * Displays a post, and all the posts below it. 20 * If no post is given, displays all posts in a discussion 21 * 22 * @package mod_forum 23 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com} 24 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 25 */ 26 27 require_once('../../config.php'); 28 29 $d = required_param('d', PARAM_INT); // Discussion ID 30 $parent = optional_param('parent', 0, PARAM_INT); // If set, then display this post and all children. 31 $mode = optional_param('mode', 0, PARAM_INT); // If set, changes the layout of the thread 32 $move = optional_param('move', 0, PARAM_INT); // If set, moves this discussion to another forum 33 $mark = optional_param('mark', '', PARAM_ALPHA); // Used for tracking read posts if user initiated. 34 $postid = optional_param('postid', 0, PARAM_INT); // Used for tracking read posts if user initiated. 35 36 $url = new moodle_url('/mod/forum/discuss.php', array('d'=>$d)); 37 if ($parent !== 0) { 38 $url->param('parent', $parent); 39 } 40 $PAGE->set_url($url); 41 42 $discussion = $DB->get_record('forum_discussions', array('id' => $d), '*', MUST_EXIST); 43 $course = $DB->get_record('course', array('id' => $discussion->course), '*', MUST_EXIST); 44 $forum = $DB->get_record('forum', array('id' => $discussion->forum), '*', MUST_EXIST); 45 $cm = get_coursemodule_from_instance('forum', $forum->id, $course->id, false, MUST_EXIST); 46 47 require_course_login($course, true, $cm); 48 49 // move this down fix for MDL-6926 50 require_once($CFG->dirroot.'/mod/forum/lib.php'); 51 52 $modcontext = context_module::instance($cm->id); 53 require_capability('mod/forum:viewdiscussion', $modcontext, NULL, true, 'noviewdiscussionspermission', 'forum'); 54 55 if (!empty($CFG->enablerssfeeds) && !empty($CFG->forum_enablerssfeeds) && $forum->rsstype && $forum->rssarticles) { 56 require_once("$CFG->libdir/rsslib.php"); 57 58 $rsstitle = format_string($course->shortname, true, array('context' => context_course::instance($course->id))) . ': ' . format_string($forum->name); 59 rss_add_http_header($modcontext, 'mod_forum', $forum, $rsstitle); 60 } 61 62 // Move discussion if requested. 63 if ($move > 0 and confirm_sesskey()) { 64 $return = $CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id; 65 66 if (!$forumto = $DB->get_record('forum', array('id' => $move))) { 67 print_error('cannotmovetonotexist', 'forum', $return); 68 } 69 70 require_capability('mod/forum:movediscussions', $modcontext); 71 72 if ($forum->type == 'single') { 73 print_error('cannotmovefromsingleforum', 'forum', $return); 74 } 75 76 if (!$forumto = $DB->get_record('forum', array('id' => $move))) { 77 print_error('cannotmovetonotexist', 'forum', $return); 78 } 79 80 if ($forumto->type == 'single') { 81 print_error('cannotmovetosingleforum', 'forum', $return); 82 } 83 84 // Get target forum cm and check it is visible to current user. 85 $modinfo = get_fast_modinfo($course); 86 $forums = $modinfo->get_instances_of('forum'); 87 if (!array_key_exists($forumto->id, $forums)) { 88 print_error('cannotmovetonotfound', 'forum', $return); 89 } 90 $cmto = $forums[$forumto->id]; 91 if (!$cmto->uservisible) { 92 print_error('cannotmovenotvisible', 'forum', $return); 93 } 94 95 $destinationctx = context_module::instance($cmto->id); 96 require_capability('mod/forum:startdiscussion', $destinationctx); 97 98 if (!forum_move_attachments($discussion, $forum->id, $forumto->id)) { 99 echo $OUTPUT->notification("Errors occurred while moving attachment directories - check your file permissions"); 100 } 101 // For each subscribed user in this forum and discussion, copy over per-discussion subscriptions if required. 102 $discussiongroup = $discussion->groupid == -1 ? 0 : $discussion->groupid; 103 $potentialsubscribers = \mod_forum\subscriptions::fetch_subscribed_users( 104 $forum, 105 $discussiongroup, 106 $modcontext, 107 'u.id', 108 true 109 ); 110 111 // Pre-seed the subscribed_discussion caches. 112 // Firstly for the forum being moved to. 113 \mod_forum\subscriptions::fill_subscription_cache($forumto->id); 114 // And also for the discussion being moved. 115 \mod_forum\subscriptions::fill_subscription_cache($forum->id); 116 $subscriptionchanges = array(); 117 $subscriptiontime = time(); 118 foreach ($potentialsubscribers as $subuser) { 119 $userid = $subuser->id; 120 $targetsubscription = \mod_forum\subscriptions::is_subscribed($userid, $forumto, null, $cmto); 121 if (\mod_forum\subscriptions::is_subscribed($userid, $forum, $discussion->id)) { 122 if (!$targetsubscription) { 123 $subscriptionchanges[$userid] = $subscriptiontime; 124 } 125 } else { 126 if ($targetsubscription) { 127 $subscriptionchanges[$userid] = \mod_forum\subscriptions::FORUM_DISCUSSION_UNSUBSCRIBED; 128 } 129 } 130 } 131 132 $DB->set_field('forum_discussions', 'forum', $forumto->id, array('id' => $discussion->id)); 133 $DB->set_field('forum_read', 'forumid', $forumto->id, array('discussionid' => $discussion->id)); 134 135 // Delete the existing per-discussion subscriptions and replace them with the newly calculated ones. 136 $DB->delete_records('forum_discussion_subs', array('discussion' => $discussion->id)); 137 $newdiscussion = clone $discussion; 138 $newdiscussion->forum = $forumto->id; 139 foreach ($subscriptionchanges as $userid => $preference) { 140 if ($preference != \mod_forum\subscriptions::FORUM_DISCUSSION_UNSUBSCRIBED) { 141 // Users must have viewdiscussion to a discussion. 142 if (has_capability('mod/forum:viewdiscussion', $destinationctx, $userid)) { 143 \mod_forum\subscriptions::subscribe_user_to_discussion($userid, $newdiscussion, $destinationctx); 144 } 145 } else { 146 \mod_forum\subscriptions::unsubscribe_user_from_discussion($userid, $newdiscussion, $destinationctx); 147 } 148 } 149 150 $params = array( 151 'context' => $destinationctx, 152 'objectid' => $discussion->id, 153 'other' => array( 154 'fromforumid' => $forum->id, 155 'toforumid' => $forumto->id, 156 ) 157 ); 158 $event = \mod_forum\event\discussion_moved::create($params); 159 $event->add_record_snapshot('forum_discussions', $discussion); 160 $event->add_record_snapshot('forum', $forum); 161 $event->add_record_snapshot('forum', $forumto); 162 $event->trigger(); 163 164 // Delete the RSS files for the 2 forums to force regeneration of the feeds 165 require_once($CFG->dirroot.'/mod/forum/rsslib.php'); 166 forum_rss_delete_file($forum); 167 forum_rss_delete_file($forumto); 168 169 redirect($return.'&moved=-1&sesskey='.sesskey()); 170 } 171 172 $params = array( 173 'context' => $modcontext, 174 'objectid' => $discussion->id, 175 ); 176 $event = \mod_forum\event\discussion_viewed::create($params); 177 $event->add_record_snapshot('forum_discussions', $discussion); 178 $event->add_record_snapshot('forum', $forum); 179 $event->trigger(); 180 181 unset($SESSION->fromdiscussion); 182 183 if ($mode) { 184 set_user_preference('forum_displaymode', $mode); 185 } 186 187 $displaymode = get_user_preferences('forum_displaymode', $CFG->forum_displaymode); 188 189 if ($parent) { 190 // If flat AND parent, then force nested display this time 191 if ($displaymode == FORUM_MODE_FLATOLDEST or $displaymode == FORUM_MODE_FLATNEWEST) { 192 $displaymode = FORUM_MODE_NESTED; 193 } 194 } else { 195 $parent = $discussion->firstpost; 196 } 197 198 if (! $post = forum_get_post_full($parent)) { 199 print_error("notexists", 'forum', "$CFG->wwwroot/mod/forum/view.php?f=$forum->id"); 200 } 201 202 if (!forum_user_can_see_post($forum, $discussion, $post, null, $cm)) { 203 print_error('noviewdiscussionspermission', 'forum', "$CFG->wwwroot/mod/forum/view.php?id=$forum->id"); 204 } 205 206 if ($mark == 'read' or $mark == 'unread') { 207 if ($CFG->forum_usermarksread && forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) { 208 if ($mark == 'read') { 209 forum_tp_add_read_record($USER->id, $postid); 210 } else { 211 // unread 212 forum_tp_delete_read_records($USER->id, $postid); 213 } 214 } 215 } 216 217 $searchform = forum_search_form($course); 218 219 $forumnode = $PAGE->navigation->find($cm->id, navigation_node::TYPE_ACTIVITY); 220 if (empty($forumnode)) { 221 $forumnode = $PAGE->navbar; 222 } else { 223 $forumnode->make_active(); 224 } 225 $node = $forumnode->add(format_string($discussion->name), new moodle_url('/mod/forum/discuss.php', array('d'=>$discussion->id))); 226 $node->display = false; 227 if ($node && $post->id != $discussion->firstpost) { 228 $node->add(format_string($post->subject), $PAGE->url); 229 } 230 231 $PAGE->set_title("$course->shortname: ".format_string($discussion->name)); 232 $PAGE->set_heading($course->fullname); 233 $PAGE->set_button($searchform); 234 $renderer = $PAGE->get_renderer('mod_forum'); 235 236 echo $OUTPUT->header(); 237 238 echo $OUTPUT->heading(format_string($forum->name), 2); 239 echo $OUTPUT->heading(format_string($discussion->name), 3, 'discussionname'); 240 241 // is_guest should be used here as this also checks whether the user is a guest in the current course. 242 // Guests and visitors cannot subscribe - only enrolled users. 243 if ((!is_guest($modcontext, $USER) && isloggedin()) && has_capability('mod/forum:viewdiscussion', $modcontext)) { 244 // Discussion subscription. 245 if (\mod_forum\subscriptions::is_subscribable($forum)) { 246 echo html_writer::div( 247 forum_get_discussion_subscription_icon($forum, $post->discussion, null, true), 248 'discussionsubscription' 249 ); 250 echo forum_get_discussion_subscription_icon_preloaders(); 251 } 252 } 253 254 255 /// Check to see if groups are being used in this forum 256 /// If so, make sure the current person is allowed to see this discussion 257 /// Also, if we know they should be able to reply, then explicitly set $canreply for performance reasons 258 259 $canreply = forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext); 260 if (!$canreply and $forum->type !== 'news') { 261 if (isguestuser() or !isloggedin()) { 262 $canreply = true; 263 } 264 if (!is_enrolled($modcontext) and !is_viewing($modcontext)) { 265 // allow guests and not-logged-in to see the link - they are prompted to log in after clicking the link 266 // normal users with temporary guest access see this link too, they are asked to enrol instead 267 $canreply = enrol_selfenrol_available($course->id); 268 } 269 } 270 271 // Output the links to neighbour discussions. 272 $neighbours = forum_get_discussion_neighbours($cm, $discussion); 273 $neighbourlinks = $renderer->neighbouring_discussion_navigation($neighbours['prev'], $neighbours['next']); 274 echo $neighbourlinks; 275 276 /// Print the controls across the top 277 echo '<div class="discussioncontrols clearfix">'; 278 279 if (!empty($CFG->enableportfolios) && has_capability('mod/forum:exportdiscussion', $modcontext)) { 280 require_once($CFG->libdir.'/portfoliolib.php'); 281 $button = new portfolio_add_button(); 282 $button->set_callback_options('forum_portfolio_caller', array('discussionid' => $discussion->id), 'mod_forum'); 283 $button = $button->to_html(PORTFOLIO_ADD_FULL_FORM, get_string('exportdiscussion', 'mod_forum')); 284 $buttonextraclass = ''; 285 if (empty($button)) { 286 // no portfolio plugin available. 287 $button = ' '; 288 $buttonextraclass = ' noavailable'; 289 } 290 echo html_writer::tag('div', $button, array('class' => 'discussioncontrol exporttoportfolio'.$buttonextraclass)); 291 } else { 292 echo html_writer::tag('div', ' ', array('class'=>'discussioncontrol nullcontrol')); 293 } 294 295 // groups selector not needed here 296 echo '<div class="discussioncontrol displaymode">'; 297 forum_print_mode_form($discussion->id, $displaymode); 298 echo "</div>"; 299 300 if ($forum->type != 'single' 301 && has_capability('mod/forum:movediscussions', $modcontext)) { 302 303 echo '<div class="discussioncontrol movediscussion">'; 304 // Popup menu to move discussions to other forums. The discussion in a 305 // single discussion forum can't be moved. 306 $modinfo = get_fast_modinfo($course); 307 if (isset($modinfo->instances['forum'])) { 308 $forummenu = array(); 309 // Check forum types and eliminate simple discussions. 310 $forumcheck = $DB->get_records('forum', array('course' => $course->id),'', 'id, type'); 311 foreach ($modinfo->instances['forum'] as $forumcm) { 312 if (!$forumcm->uservisible || !has_capability('mod/forum:startdiscussion', 313 context_module::instance($forumcm->id))) { 314 continue; 315 } 316 $section = $forumcm->sectionnum; 317 $sectionname = get_section_name($course, $section); 318 if (empty($forummenu[$section])) { 319 $forummenu[$section] = array($sectionname => array()); 320 } 321 $forumidcompare = $forumcm->instance != $forum->id; 322 $forumtypecheck = $forumcheck[$forumcm->instance]->type !== 'single'; 323 if ($forumidcompare and $forumtypecheck) { 324 $url = "/mod/forum/discuss.php?d=$discussion->id&move=$forumcm->instance&sesskey=".sesskey(); 325 $forummenu[$section][$sectionname][$url] = format_string($forumcm->name); 326 } 327 } 328 if (!empty($forummenu)) { 329 echo '<div class="movediscussionoption">'; 330 $select = new url_select($forummenu, '', 331 array(''=>get_string("movethisdiscussionto", "forum")), 332 'forummenu', get_string('move')); 333 echo $OUTPUT->render($select); 334 echo "</div>"; 335 } 336 } 337 echo "</div>"; 338 } 339 echo '<div class="clearfloat"> </div>'; 340 echo "</div>"; 341 342 if (!empty($forum->blockafter) && !empty($forum->blockperiod)) { 343 $a = new stdClass(); 344 $a->blockafter = $forum->blockafter; 345 $a->blockperiod = get_string('secondstotime'.$forum->blockperiod); 346 echo $OUTPUT->notification(get_string('thisforumisthrottled','forum',$a)); 347 } 348 349 if ($forum->type == 'qanda' && !has_capability('mod/forum:viewqandawithoutposting', $modcontext) && 350 !forum_user_has_posted($forum->id,$discussion->id,$USER->id)) { 351 echo $OUTPUT->notification(get_string('qandanotify','forum')); 352 } 353 354 if ($move == -1 and confirm_sesskey()) { 355 echo $OUTPUT->notification(get_string('discussionmoved', 'forum', format_string($forum->name,true))); 356 } 357 358 $canrate = has_capability('mod/forum:rate', $modcontext); 359 forum_print_discussion($course, $cm, $forum, $discussion, $post, $displaymode, $canreply, $canrate); 360 361 echo $neighbourlinks; 362 363 // Add the subscription toggle JS. 364 $PAGE->requires->yui_module('moodle-mod_forum-subscriptiontoggle', 'Y.M.mod_forum.subscriptiontoggle.init'); 365 366 echo $OUTPUT->footer();
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| Generated: Fri Nov 28 20:29:05 2014 | Cross-referenced by PHPXref 0.7.1 |