mod/forum/post.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  * Edit and save a new post to a discussion
  20  *
  21  * @package mod-forum
  22  * @copyright 1999 onwards Martin Dougiamas  {@link http://moodle.com}
  23  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 require_once('../../config.php');
  27 require_once('lib.php');
  28 require_once($CFG->libdir.'/completionlib.php');
  29
  30 $reply   = optional_param('reply', 0, PARAM_INT);
  31 $forum   = optional_param('forum', 0, PARAM_INT);
  32 $edit    = optional_param('edit', 0, PARAM_INT);
  33 $delete  = optional_param('delete', 0, PARAM_INT);
  34 $prune   = optional_param('prune', 0, PARAM_INT);
  35 $name    = optional_param('name', '', PARAM_CLEAN);
  36 $confirm = optional_param('confirm', 0, PARAM_INT);
  37 $groupid = optional_param('groupid', null, PARAM_INT);
  38
  39 $PAGE->set_url('/mod/forum/post.php', array(
  40         'reply' => $reply,
  41         'forum' => $forum,
  42         'edit'  => $edit,
  43         'delete'=> $delete,
  44         'prune' => $prune,
  45         'name'  => $name,
  46         'confirm'=>$confirm,
  47         'groupid'=>$groupid,
  48         ));
  49 //these page_params will be passed as hidden variables later in the form.
  50 $page_params = array('reply'=>$reply, 'forum'=>$forum, 'edit'=>$edit);
  51
  52 $sitecontext = context_system::instance();
  53
  54 if (!isloggedin() or isguestuser()) {
  55
  56     if (!isloggedin() and !get_referer()) {
  57         // No referer+not logged in - probably coming in via email  See MDL-9052
  58         require_login();
  59     }
  60
  61     if (!empty($forum)) {      // User is starting a new discussion in a forum
  62         if (! $forum = $DB->get_record('forum', array('id' => $forum))) {
  63             print_error('invalidforumid', 'forum');
  64         }
  65     } else if (!empty($reply)) {      // User is writing a new reply
  66         if (! $parent = forum_get_post_full($reply)) {
  67             print_error('invalidparentpostid', 'forum');
  68         }
  69         if (! $discussion = $DB->get_record('forum_discussions', array('id' => $parent->discussion))) {
  70             print_error('notpartofdiscussion', 'forum');
  71         }
  72         if (! $forum = $DB->get_record('forum', array('id' => $discussion->forum))) {
  73             print_error('invalidforumid');
  74         }
  75     }
  76     if (! $course = $DB->get_record('course', array('id' => $forum->course))) {
  77         print_error('invalidcourseid');
  78     }
  79
  80     if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
  81         print_error('invalidcoursemodule');
  82     } else {
  83         $modcontext = context_module::instance($cm->id);
  84     }
  85
  86     $PAGE->set_cm($cm, $course, $forum);
  87     $PAGE->set_context($modcontext);
  88     $PAGE->set_title($course->shortname);
  89     $PAGE->set_heading($course->fullname);
  90
  91     echo $OUTPUT->header();
  92     echo $OUTPUT->confirm(get_string('noguestpost', 'forum').'<br /><br />'.get_string('liketologin'), get_login_url(), get_referer(false));
  93     echo $OUTPUT->footer();
  94     exit;
  95 }
  96
  97 require_login(0, false);   // Script is useless unless they're logged in
  98
  99 if (!empty($forum)) {      // User is starting a new discussion in a forum
 100     if (! $forum = $DB->get_record("forum", array("id" => $forum))) {
 101         print_error('invalidforumid', 'forum');
 102     }
 103     if (! $course = $DB->get_record("course", array("id" => $forum->course))) {
 104         print_error('invalidcourseid');
 105     }
 106     if (! $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 107         print_error("invalidcoursemodule");
 108     }
 109
 110     $coursecontext = context_course::instance($course->id);
 111
 112     if (! forum_user_can_post_discussion($forum, $groupid, -1, $cm)) {
 113         if (!isguestuser()) {
 114             if (!is_enrolled($coursecontext)) {
 115                 if (enrol_selfenrol_available($course->id)) {
 116                     $SESSION->wantsurl = qualified_me();
 117                     $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
 118                     redirect($CFG->wwwroot.'/enrol/index.php?id='.$course->id, get_string('youneedtoenrol'));
 119                 }
 120             }
 121         }
 122         print_error('nopostforum', 'forum');
 123     }
 124
 125     if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
 126         print_error("activityiscurrentlyhidden");
 127     }
 128
 129     if (isset($_SERVER["HTTP_REFERER"])) {
 130         $SESSION->fromurl = $_SERVER["HTTP_REFERER"];
 131     } else {
 132         $SESSION->fromurl = '';
 133     }
 134
 135
 136     // Load up the $post variable.
 137
 138     $post = new stdClass();
 139     $post->course        = $course->id;
 140     $post->forum         = $forum->id;
 141     $post->discussion    = 0;           // ie discussion # not defined yet
 142     $post->parent        = 0;
 143     $post->subject       = '';
 144     $post->userid        = $USER->id;
 145     $post->message       = '';
 146     $post->messageformat = editors_get_preferred_format();
 147     $post->messagetrust  = 0;
 148
 149     if (isset($groupid)) {
 150         $post->groupid = $groupid;
 151     } else {
 152         $post->groupid = groups_get_activity_group($cm);
 153     }
 154
 155     forum_set_return();
 156
 157 } else if (!empty($reply)) {      // User is writing a new reply
 158
 159     if (! $parent = forum_get_post_full($reply)) {
 160         print_error('invalidparentpostid', 'forum');
 161     }
 162     if (! $discussion = $DB->get_record("forum_discussions", array("id" => $parent->discussion))) {
 163         print_error('notpartofdiscussion', 'forum');
 164     }
 165     if (! $forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 166         print_error('invalidforumid', 'forum');
 167     }
 168     if (! $course = $DB->get_record("course", array("id" => $discussion->course))) {
 169         print_error('invalidcourseid');
 170     }
 171     if (! $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 172         print_error('invalidcoursemodule');
 173     }
 174
 175     // Ensure lang, theme, etc. is set up properly. MDL-6926
 176     $PAGE->set_cm($cm, $course, $forum);
 177
 178     $coursecontext = context_course::instance($course->id);
 179     $modcontext    = context_module::instance($cm->id);
 180
 181     if (! forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext)) {
 182         if (!isguestuser()) {
 183             if (!is_enrolled($coursecontext)) {  // User is a guest here!
 184                 $SESSION->wantsurl = qualified_me();
 185                 $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
 186                 redirect($CFG->wwwroot.'/enrol/index.php?id='.$course->id, get_string('youneedtoenrol'));
 187             }
 188         }
 189         print_error('nopostforum', 'forum');
 190     }
 191
 192     // Make sure user can post here
 193     if (isset($cm->groupmode) && empty($course->groupmodeforce)) {
 194         $groupmode =  $cm->groupmode;
 195     } else {
 196         $groupmode = $course->groupmode;
 197     }
 198     if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $modcontext)) {
 199         if ($discussion->groupid == -1) {
 200             print_error('nopostforum', 'forum');
 201         } else {
 202             if (!groups_is_member($discussion->groupid)) {
 203                 print_error('nopostforum', 'forum');
 204             }
 205         }
 206     }
 207
 208     if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
 209         print_error("activityiscurrentlyhidden");
 210     }
 211
 212     // Load up the $post variable.
 213
 214     $post = new stdClass();
 215     $post->course      = $course->id;
 216     $post->forum       = $forum->id;
 217     $post->discussion  = $parent->discussion;
 218     $post->parent      = $parent->id;
 219     $post->subject     = $parent->subject;
 220     $post->userid      = $USER->id;
 221     $post->message     = '';
 222
 223     $post->groupid = ($discussion->groupid == -1) ? 0 : $discussion->groupid;
 224
 225     $strre = get_string('re', 'forum');
 226     if (!(substr($post->subject, 0, strlen($strre)) == $strre)) {
 227         $post->subject = $strre.' '.$post->subject;
 228     }
 229
 230     unset($SESSION->fromdiscussion);
 231
 232 } else if (!empty($edit)) {  // User is editing their own post
 233
 234     if (! $post = forum_get_post_full($edit)) {
 235         print_error('invalidpostid', 'forum');
 236     }
 237     if ($post->parent) {
 238         if (! $parent = forum_get_post_full($post->parent)) {
 239             print_error('invalidparentpostid', 'forum');
 240         }
 241     }
 242
 243     if (! $discussion = $DB->get_record("forum_discussions", array("id" => $post->discussion))) {
 244         print_error('notpartofdiscussion', 'forum');
 245     }
 246     if (! $forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 247         print_error('invalidforumid', 'forum');
 248     }
 249     if (! $course = $DB->get_record("course", array("id" => $discussion->course))) {
 250         print_error('invalidcourseid');
 251     }
 252     if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 253         print_error('invalidcoursemodule');
 254     } else {
 255         $modcontext = context_module::instance($cm->id);
 256     }
 257
 258     $PAGE->set_cm($cm, $course, $forum);
 259
 260     if (!($forum->type == 'news' && !$post->parent && $discussion->timestart > time())) {
 261         if (((time() - $post->created) > $CFG->maxeditingtime) and
 262                     !has_capability('mod/forum:editanypost', $modcontext)) {
 263             print_error('maxtimehaspassed', 'forum', '', format_time($CFG->maxeditingtime));
 264         }
 265     }
 266     if (($post->userid <> $USER->id) and
 267                 !has_capability('mod/forum:editanypost', $modcontext)) {
 268         print_error('cannoteditposts', 'forum');
 269     }
 270
 271
 272     // Load up the $post variable.
 273     $post->edit   = $edit;
 274     $post->course = $course->id;
 275     $post->forum  = $forum->id;
 276     $post->groupid = ($discussion->groupid == -1) ? 0 : $discussion->groupid;
 277
 278     $post = trusttext_pre_edit($post, 'message', $modcontext);
 279
 280     unset($SESSION->fromdiscussion);
 281
 282
 283 }else if (!empty($delete)) {  // User is deleting a post
 284
 285     if (! $post = forum_get_post_full($delete)) {
 286         print_error('invalidpostid', 'forum');
 287     }
 288     if (! $discussion = $DB->get_record("forum_discussions", array("id" => $post->discussion))) {
 289         print_error('notpartofdiscussion', 'forum');
 290     }
 291     if (! $forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 292         print_error('invalidforumid', 'forum');
 293     }
 294     if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) {
 295         print_error('invalidcoursemodule');
 296     }
 297     if (!$course = $DB->get_record('course', array('id' => $forum->course))) {
 298         print_error('invalidcourseid');
 299     }
 300
 301     require_login($course, false, $cm);
 302     $modcontext = context_module::instance($cm->id);
 303
 304     if ( !(($post->userid == $USER->id && has_capability('mod/forum:deleteownpost', $modcontext))
 305                 || has_capability('mod/forum:deleteanypost', $modcontext)) ) {
 306         print_error('cannotdeletepost', 'forum');
 307     }
 308
 309
 310     $replycount = forum_count_replies($post);
 311
 312     if (!empty($confirm) && confirm_sesskey()) {    // User has confirmed the delete
 313         //check user capability to delete post.
 314         $timepassed = time() - $post->created;
 315         if (($timepassed > $CFG->maxeditingtime) && !has_capability('mod/forum:deleteanypost', $modcontext)) {
 316             print_error("cannotdeletepost", "forum",
 317                       forum_go_back_to("discuss.php?d=$post->discussion"));
 318         }
 319
 320         if ($post->totalscore) {
 321             notice(get_string('couldnotdeleteratings', 'rating'),
 322                     forum_go_back_to("discuss.php?d=$post->discussion"));
 323
 324         } else if ($replycount && !has_capability('mod/forum:deleteanypost', $modcontext)) {
 325             print_error("couldnotdeletereplies", "forum",
 326                     forum_go_back_to("discuss.php?d=$post->discussion"));
 327
 328         } else {
 329             if (! $post->parent) {  // post is a discussion topic as well, so delete discussion
 330                 if ($forum->type == 'single') {
 331                     notice("Sorry, but you are not allowed to delete that discussion!",
 332                             forum_go_back_to("discuss.php?d=$post->discussion"));
 333                 }
 334                 forum_delete_discussion($discussion, false, $course, $cm, $forum);
 335
 336                 add_to_log($discussion->course, "forum", "delete discussion",
 337                            "view.php?id=$cm->id", "$forum->id", $cm->id);
 338
 339                 redirect("view.php?f=$discussion->forum");
 340
 341             } else if (forum_delete_post($post, has_capability('mod/forum:deleteanypost', $modcontext),
 342                 $course, $cm, $forum)) {
 343
 344                 if ($forum->type == 'single') {
 345                     // Single discussion forums are an exception. We show
 346                     // the forum itself since it only has one discussion
 347                     // thread.
 348                     $discussionurl = "view.php?f=$forum->id";
 349                 } else {
 350                     $discussionurl = "discuss.php?d=$post->discussion";
 351                 }
 352
 353                 add_to_log($discussion->course, "forum", "delete post", $discussionurl, "$post->id", $cm->id);
 354
 355                 redirect(forum_go_back_to($discussionurl));
 356             } else {
 357                 print_error('errorwhiledelete', 'forum');
 358             }
 359         }
 360
 361
 362     } else { // User just asked to delete something
 363
 364         forum_set_return();
 365         $PAGE->navbar->add(get_string('delete', 'forum'));
 366         $PAGE->set_title($course->shortname);
 367         $PAGE->set_heading($course->fullname);
 368
 369         if ($replycount) {
 370             if (!has_capability('mod/forum:deleteanypost', $modcontext)) {
 371                 print_error("couldnotdeletereplies", "forum",
 372                       forum_go_back_to("discuss.php?d=$post->discussion"));
 373             }
 374             echo $OUTPUT->header();
 375             echo $OUTPUT->heading(format_string($forum->name), 2);
 376             echo $OUTPUT->confirm(get_string("deletesureplural", "forum", $replycount+1),
 377                          "post.php?delete=$delete&confirm=$delete",
 378                          $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 379
 380             forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 381
 382             if (empty($post->edit)) {
 383                 $forumtracked = forum_tp_is_tracked($forum);
 384                 $posts = forum_get_all_discussion_posts($discussion->id, "created ASC", $forumtracked);
 385                 forum_print_posts_nested($course, $cm, $forum, $discussion, $post, false, false, $forumtracked, $posts);
 386             }
 387         } else {
 388             echo $OUTPUT->header();
 389             echo $OUTPUT->heading(format_string($forum->name), 2);
 390             echo $OUTPUT->confirm(get_string("deletesure", "forum", $replycount),
 391                          "post.php?delete=$delete&confirm=$delete",
 392                          $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 393             forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 394         }
 395
 396     }
 397     echo $OUTPUT->footer();
 398     die;
 399
 400
 401 } else if (!empty($prune)) {  // Pruning
 402
 403     if (!$post = forum_get_post_full($prune)) {
 404         print_error('invalidpostid', 'forum');
 405     }
 406     if (!$discussion = $DB->get_record("forum_discussions", array("id" => $post->discussion))) {
 407         print_error('notpartofdiscussion', 'forum');
 408     }
 409     if (!$forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 410         print_error('invalidforumid', 'forum');
 411     }
 412     if ($forum->type == 'single') {
 413         print_error('cannotsplit', 'forum');
 414     }
 415     if (!$post->parent) {
 416         print_error('alreadyfirstpost', 'forum');
 417     }
 418     if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) { // For the logs
 419         print_error('invalidcoursemodule');
 420     } else {
 421         $modcontext = context_module::instance($cm->id);
 422     }
 423     if (!has_capability('mod/forum:splitdiscussions', $modcontext)) {
 424         print_error('cannotsplit', 'forum');
 425     }
 426
 427     if (!empty($name) && confirm_sesskey()) {    // User has confirmed the prune
 428
 429         $newdiscussion = new stdClass();
 430         $newdiscussion->course       = $discussion->course;
 431         $newdiscussion->forum        = $discussion->forum;
 432         $newdiscussion->name         = $name;
 433         $newdiscussion->firstpost    = $post->id;
 434         $newdiscussion->userid       = $discussion->userid;
 435         $newdiscussion->groupid      = $discussion->groupid;
 436         $newdiscussion->assessed     = $discussion->assessed;
 437         $newdiscussion->usermodified = $post->userid;
 438         $newdiscussion->timestart    = $discussion->timestart;
 439         $newdiscussion->timeend      = $discussion->timeend;
 440
 441         $newid = $DB->insert_record('forum_discussions', $newdiscussion);
 442
 443         $newpost = new stdClass();
 444         $newpost->id      = $post->id;
 445         $newpost->parent  = 0;
 446         $newpost->subject = $name;
 447
 448         $DB->update_record("forum_posts", $newpost);
 449
 450         forum_change_discussionid($post->id, $newid);
 451
 452         // update last post in each discussion
 453         forum_discussion_update_last_post($discussion->id);
 454         forum_discussion_update_last_post($newid);
 455
 456         add_to_log($discussion->course, "forum", "prune post",
 457                        "discuss.php?d=$newid", "$post->id", $cm->id);
 458
 459         redirect(forum_go_back_to("discuss.php?d=$newid"));
 460
 461     } else { // User just asked to prune something
 462
 463         $course = $DB->get_record('course', array('id' => $forum->course));
 464
 465         $PAGE->set_cm($cm);
 466         $PAGE->set_context($modcontext);
 467         $PAGE->navbar->add(format_string($post->subject, true), new moodle_url('/mod/forum/discuss.php', array('d'=>$discussion->id)));
 468         $PAGE->navbar->add(get_string("prune", "forum"));
 469         $PAGE->set_title(format_string($discussion->name).": ".format_string($post->subject));
 470         $PAGE->set_heading($course->fullname);
 471         echo $OUTPUT->header();
 472         echo $OUTPUT->heading(format_string($forum->name), 2);
 473         echo $OUTPUT->heading(get_string('pruneheading', 'forum'), 3);
 474         echo '<center>';
 475
 476         include('prune.html');
 477
 478         forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 479         echo '</center>';
 480     }
 481     echo $OUTPUT->footer();
 482     die;
 483 } else {
 484     print_error('unknowaction');
 485
 486 }
 487
 488 if (!isset($coursecontext)) {
 489     // Has not yet been set by post.php.
 490     $coursecontext = context_course::instance($forum->course);
 491 }
 492
 493
 494 // from now on user must be logged on properly
 495
 496 if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
 497     print_error('invalidcoursemodule');
 498 }
 499 $modcontext = context_module::instance($cm->id);
 500 require_login($course, false, $cm);
 501
 502 if (isguestuser()) {
 503     // just in case
 504     print_error('noguest');
 505 }
 506
 507 if (!isset($forum->maxattachments)) {  // TODO - delete this once we add a field to the forum table
 508     $forum->maxattachments = 3;
 509 }
 510
 511 $thresholdwarning = forum_check_throttling($forum, $cm);
 512 $mform_post = new mod_forum_post_form('post.php', array('course' => $course,
 513                                                         'cm' => $cm,
 514                                                         'coursecontext' => $coursecontext,
 515                                                         'modcontext' => $modcontext,
 516                                                         'forum' => $forum,
 517                                                         'post' => $post,
 518                                                         'thresholdwarning' => $thresholdwarning,
 519                                                         'edit' => $edit), 'post', '', array('id' => 'mformforum'));
 520
 521 $draftitemid = file_get_submitted_draft_itemid('attachments');
 522 file_prepare_draft_area($draftitemid, $modcontext->id, 'mod_forum', 'attachment', empty($post->id)?null:$post->id, mod_forum_post_form::attachment_options($forum));
 523
 524 //load data into form NOW!
 525
 526 if ($USER->id != $post->userid) {   // Not the original author, so add a message to the end
 527     $data = new stdClass();
 528     $data->date = userdate($post->modified);
 529     if ($post->messageformat == FORMAT_HTML) {
 530         $data->name = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$USER->id.'&course='.$post->course.'">'.
 531                        fullname($USER).'</a>';
 532         $post->message .= '<p><span class="edited">('.get_string('editedby', 'forum', $data).')</span></p>';
 533     } else {
 534         $data->name = fullname($USER);
 535         $post->message .= "\n\n(".get_string('editedby', 'forum', $data).')';
 536     }
 537     unset($data);
 538 }
 539
 540 $formheading = '';
 541 if (!empty($parent)) {
 542     $heading = get_string("yourreply", "forum");
 543     $formheading = get_string('reply', 'forum');
 544 } else {
 545     if ($forum->type == 'qanda') {
 546         $heading = get_string('yournewquestion', 'forum');
 547     } else {
 548         $heading = get_string('yournewtopic', 'forum');
 549     }
 550 }
 551
 552 if (forum_is_subscribed($USER->id, $forum->id)) {
 553     $subscribe = true;
 554
 555 } else if (forum_user_has_posted($forum->id, 0, $USER->id)) {
 556     $subscribe = false;
 557
 558 } else {
 559     // user not posted yet - use subscription default specified in profile
 560     $subscribe = !empty($USER->autosubscribe);
 561 }
 562
 563 $postid = empty($post->id) ? null : $post->id;
 564 $draftid_editor = file_get_submitted_draft_itemid('message');
 565 $currenttext = file_prepare_draft_area($draftid_editor, $modcontext->id, 'mod_forum', 'post', $postid, mod_forum_post_form::editor_options($modcontext, $postid), $post->message);
 566 $mform_post->set_data(array(        'attachments'=>$draftitemid,
 567                                     'general'=>$heading,
 568                                     'subject'=>$post->subject,
 569                                     'message'=>array(
 570                                         'text'=>$currenttext,
 571                                         'format'=>empty($post->messageformat) ? editors_get_preferred_format() : $post->messageformat,
 572                                         'itemid'=>$draftid_editor
 573                                     ),
 574                                     'subscribe'=>$subscribe?1:0,
 575                                     'mailnow'=>!empty($post->mailnow),
 576                                     'userid'=>$post->userid,
 577                                     'parent'=>$post->parent,
 578                                     'discussion'=>$post->discussion,
 579                                     'course'=>$course->id) +
 580                                     $page_params +
 581
 582                             (isset($post->format)?array(
 583                                     'format'=>$post->format):
 584                                 array())+
 585
 586                             (isset($discussion->timestart)?array(
 587                                     'timestart'=>$discussion->timestart):
 588                                 array())+
 589
 590                             (isset($discussion->timeend)?array(
 591                                     'timeend'=>$discussion->timeend):
 592                                 array())+
 593
 594                             (isset($post->groupid)?array(
 595                                     'groupid'=>$post->groupid):
 596                                 array())+
 597
 598                             (isset($discussion->id)?
 599                                     array('discussion'=>$discussion->id):
 600                                     array()));
 601
 602 if ($fromform = $mform_post->get_data()) {
 603
 604     if (empty($SESSION->fromurl)) {
 605         $errordestination = "$CFG->wwwroot/mod/forum/view.php?f=$forum->id";
 606     } else {
 607         $errordestination = $SESSION->fromurl;
 608     }
 609
 610     $fromform->itemid        = $fromform->message['itemid'];
 611     $fromform->messageformat = $fromform->message['format'];
 612     $fromform->message       = $fromform->message['text'];
 613     // WARNING: the $fromform->message array has been overwritten, do not use it anymore!
 614     $fromform->messagetrust  = trusttext_trusted($modcontext);
 615
 616     $contextcheck = isset($fromform->groupinfo) && has_capability('mod/forum:movediscussions', $modcontext);
 617
 618     if ($fromform->edit) {           // Updating a post
 619         unset($fromform->groupid);
 620         $fromform->id = $fromform->edit;
 621         $message = '';
 622
 623         //fix for bug #4314
 624         if (!$realpost = $DB->get_record('forum_posts', array('id' => $fromform->id))) {
 625             $realpost = new stdClass();
 626             $realpost->userid = -1;
 627         }
 628
 629
 630         // if user has edit any post capability
 631         // or has either startnewdiscussion or reply capability and is editting own post
 632         // then he can proceed
 633         // MDL-7066
 634         if ( !(($realpost->userid == $USER->id && (has_capability('mod/forum:replypost', $modcontext)
 635                             || has_capability('mod/forum:startdiscussion', $modcontext))) ||
 636                             has_capability('mod/forum:editanypost', $modcontext)) ) {
 637             print_error('cannotupdatepost', 'forum');
 638         }
 639
 640         // If the user has access to all groups and they are changing the group, then update the post.
 641         if ($contextcheck) {
 642             if (empty($fromform->groupinfo)) {
 643                 $fromform->groupinfo = -1;
 644             }
 645             $DB->set_field('forum_discussions' ,'groupid' , $fromform->groupinfo, array('firstpost' => $fromform->id));
 646         }
 647
 648         $updatepost = $fromform; //realpost
 649         $updatepost->forum = $forum->id;
 650         if (!forum_update_post($updatepost, $mform_post, $message)) {
 651             print_error("couldnotupdate", "forum", $errordestination);
 652         }
 653
 654         // MDL-11818
 655         if (($forum->type == 'single') && ($updatepost->parent == '0')){ // updating first post of single discussion type -> updating forum intro
 656             $forum->intro = $updatepost->message;
 657             $forum->timemodified = time();
 658             $DB->update_record("forum", $forum);
 659         }
 660
 661         $timemessage = 2;
 662         if (!empty($message)) { // if we're printing stuff about the file upload
 663             $timemessage = 4;
 664         }
 665
 666         if ($realpost->userid == $USER->id) {
 667             $message .= '<br />'.get_string("postupdated", "forum");
 668         } else {
 669             $realuser = $DB->get_record('user', array('id' => $realpost->userid));
 670             $message .= '<br />'.get_string("editedpostupdated", "forum", fullname($realuser));
 671         }
 672
 673         if ($subscribemessage = forum_post_subscription($fromform, $forum)) {
 674             $timemessage = 4;
 675         }
 676         if ($forum->type == 'single') {
 677             // Single discussion forums are an exception. We show
 678             // the forum itself since it only has one discussion
 679             // thread.
 680             $discussionurl = "view.php?f=$forum->id";
 681         } else {
 682             $discussionurl = "discuss.php?d=$discussion->id#p$fromform->id";
 683         }
 684         add_to_log($course->id, "forum", "update post",
 685                 "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 686
 687         redirect(forum_go_back_to("$discussionurl"), $message.$subscribemessage, $timemessage);
 688
 689         exit;
 690
 691
 692     } else if ($fromform->discussion) { // Adding a new post to an existing discussion
 693         // Before we add this we must check that the user will not exceed the blocking threshold.
 694         forum_check_blocking_threshold($thresholdwarning);
 695
 696         unset($fromform->groupid);
 697         $message = '';
 698         $addpost = $fromform;
 699         $addpost->forum=$forum->id;
 700         if ($fromform->id = forum_add_new_post($addpost, $mform_post, $message)) {
 701
 702             $timemessage = 2;
 703             if (!empty($message)) { // if we're printing stuff about the file upload
 704                 $timemessage = 4;
 705             }
 706
 707             if ($subscribemessage = forum_post_subscription($fromform, $forum)) {
 708                 $timemessage = 4;
 709             }
 710
 711             if (!empty($fromform->mailnow)) {
 712                 $message .= get_string("postmailnow", "forum");
 713                 $timemessage = 4;
 714             } else {
 715                 $message .= '<p>'.get_string("postaddedsuccess", "forum") . '</p>';
 716                 $message .= '<p>'.get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
 717             }
 718
 719             if ($forum->type == 'single') {
 720                 // Single discussion forums are an exception. We show
 721                 // the forum itself since it only has one discussion
 722                 // thread.
 723                 $discussionurl = "view.php?f=$forum->id";
 724             } else {
 725                 $discussionurl = "discuss.php?d=$discussion->id";
 726             }
 727             add_to_log($course->id, "forum", "add post",
 728                       "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 729
 730             // Update completion state
 731             $completion=new completion_info($course);
 732             if($completion->is_enabled($cm) &&
 733                 ($forum->completionreplies || $forum->completionposts)) {
 734                 $completion->update_state($cm,COMPLETION_COMPLETE);
 735             }
 736
 737             redirect(forum_go_back_to("$discussionurl#p$fromform->id"), $message.$subscribemessage, $timemessage);
 738
 739         } else {
 740             print_error("couldnotadd", "forum", $errordestination);
 741         }
 742         exit;
 743
 744     } else { // Adding a new discussion.
 745         // Before we add this we must check that the user will not exceed the blocking threshold.
 746         forum_check_blocking_threshold($thresholdwarning);
 747
 748         if (!forum_user_can_post_discussion($forum, $fromform->groupid, -1, $cm, $modcontext)) {
 749             print_error('cannotcreatediscussion', 'forum');
 750         }
 751         // If the user has access all groups capability let them choose the group.
 752         if ($contextcheck) {
 753             $fromform->groupid = $fromform->groupinfo;
 754         }
 755         if (empty($fromform->groupid)) {
 756             $fromform->groupid = -1;
 757         }
 758
 759         $fromform->mailnow = empty($fromform->mailnow) ? 0 : 1;
 760
 761         $discussion = $fromform;
 762         $discussion->name    = $fromform->subject;
 763
 764         $newstopic = false;
 765         if ($forum->type == 'news' && !$fromform->parent) {
 766             $newstopic = true;
 767         }
 768         $discussion->timestart = $fromform->timestart;
 769         $discussion->timeend = $fromform->timeend;
 770
 771         $message = '';
 772         if ($discussion->id = forum_add_discussion($discussion, $mform_post, $message)) {
 773
 774             add_to_log($course->id, "forum", "add discussion",
 775                     "discuss.php?d=$discussion->id", "$discussion->id", $cm->id);
 776
 777             $timemessage = 2;
 778             if (!empty($message)) { // if we're printing stuff about the file upload
 779                 $timemessage = 4;
 780             }
 781
 782             if ($fromform->mailnow) {
 783                 $message .= get_string("postmailnow", "forum");
 784                 $timemessage = 4;
 785             } else {
 786                 $message .= '<p>'.get_string("postaddedsuccess", "forum") . '</p>';
 787                 $message .= '<p>'.get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
 788             }
 789
 790             if ($subscribemessage = forum_post_subscription($discussion, $forum)) {
 791                 $timemessage = 4;
 792             }
 793
 794             // Update completion status
 795             $completion=new completion_info($course);
 796             if($completion->is_enabled($cm) &&
 797                 ($forum->completiondiscussions || $forum->completionposts)) {
 798                 $completion->update_state($cm,COMPLETION_COMPLETE);
 799             }
 800
 801             redirect(forum_go_back_to("view.php?f=$fromform->forum"), $message.$subscribemessage, $timemessage);
 802
 803         } else {
 804             print_error("couldnotadd", "forum", $errordestination);
 805         }
 806
 807         exit;
 808     }
 809 }
 810
 811
 812
 813 // To get here they need to edit a post, and the $post
 814 // variable will be loaded with all the particulars,
 815 // so bring up the form.
 816
 817 // $course, $forum are defined.  $discussion is for edit and reply only.
 818
 819 if ($post->discussion) {
 820     if (! $toppost = $DB->get_record("forum_posts", array("discussion" => $post->discussion, "parent" => 0))) {
 821         print_error('cannotfindparentpost', 'forum', '', $post->id);
 822     }
 823 } else {
 824     $toppost = new stdClass();
 825     $toppost->subject = ($forum->type == "news") ? get_string("addanewtopic", "forum") :
 826                                                    get_string("addanewdiscussion", "forum");
 827 }
 828
 829 if (empty($post->edit)) {
 830     $post->edit = '';
 831 }
 832
 833 if (empty($discussion->name)) {
 834     if (empty($discussion)) {
 835         $discussion = new stdClass();
 836     }
 837     $discussion->name = $forum->name;
 838 }
 839 if ($forum->type == 'single') {
 840     // There is only one discussion thread for this forum type. We should
 841     // not show the discussion name (same as forum name in this case) in
 842     // the breadcrumbs.
 843     $strdiscussionname = '';
 844 } else {
 845     // Show the discussion name in the breadcrumbs.
 846     $strdiscussionname = format_string($discussion->name).':';
 847 }
 848
 849 $forcefocus = empty($reply) ? NULL : 'message';
 850
 851 if (!empty($discussion->id)) {
 852     $PAGE->navbar->add(format_string($toppost->subject, true), "discuss.php?d=$discussion->id");
 853 }
 854
 855 if ($post->parent) {
 856     $PAGE->navbar->add(get_string('reply', 'forum'));
 857 }
 858
 859 if ($edit) {
 860     $PAGE->navbar->add(get_string('edit', 'forum'));
 861 }
 862
 863 $PAGE->set_title("$course->shortname: $strdiscussionname ".format_string($toppost->subject));
 864 $PAGE->set_heading($course->fullname);
 865
 866 echo $OUTPUT->header();
 867 echo $OUTPUT->heading(format_string($forum->name), 2);
 868
 869 // checkup
 870 if (!empty($parent) && !forum_user_can_see_post($forum, $discussion, $post, null, $cm)) {
 871     print_error('cannotreply', 'forum');
 872 }
 873 if (empty($parent) && empty($edit) && !forum_user_can_post_discussion($forum, $groupid, -1, $cm, $modcontext)) {
 874     print_error('cannotcreatediscussion', 'forum');
 875 }
 876
 877 if ($forum->type == 'qanda'
 878             && !has_capability('mod/forum:viewqandawithoutposting', $modcontext)
 879             && !empty($discussion->id)
 880             && !forum_user_has_posted($forum->id, $discussion->id, $USER->id)) {
 881     echo $OUTPUT->notification(get_string('qandanotify','forum'));
 882 }
 883
 884 // If there is a warning message and we are not editing a post we need to handle the warning.
 885 if (!empty($thresholdwarning) && !$edit) {
 886     // Here we want to throw an exception if they are no longer allowed to post.
 887     forum_check_blocking_threshold($thresholdwarning);
 888 }
 889
 890 if (!empty($parent)) {
 891     if (!$discussion = $DB->get_record('forum_discussions', array('id' => $parent->discussion))) {
 892         print_error('notpartofdiscussion', 'forum');
 893     }
 894
 895     forum_print_post($parent, $discussion, $forum, $cm, $course, false, false, false);
 896     if (empty($post->edit)) {
 897         if ($forum->type != 'qanda' || forum_user_can_see_discussion($forum, $discussion, $modcontext)) {
 898             $forumtracked = forum_tp_is_tracked($forum);
 899             $posts = forum_get_all_discussion_posts($discussion->id, "created ASC", $forumtracked);
 900             forum_print_posts_threaded($course, $cm, $forum, $discussion, $parent, 0, false, $forumtracked, $posts);
 901         }
 902     }
 903 } else {
 904     if (!empty($forum->intro)) {
 905         echo $OUTPUT->box(format_module_intro('forum', $forum, $cm->id), 'generalbox', 'intro');
 906
 907         if (!empty($CFG->enableplagiarism)) {
 908             require_once($CFG->libdir.'/plagiarismlib.php');
 909             echo plagiarism_print_disclosure($cm->id);
 910         }
 911     }
 912 }
 913
 914 if (!empty($formheading)) {
 915     echo $OUTPUT->heading($formheading, 2, array('class' => 'accesshide'));
 916 }
 917 $mform_post->display();
 918
 919 echo $OUTPUT->footer();
 920