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     // Unsetting this will allow the correct return URL to be calculated later.
 156     unset($SESSION->fromdiscussion);
 157
 158 } else if (!empty($reply)) {      // User is writing a new reply
 159
 160     if (! $parent = forum_get_post_full($reply)) {
 161         print_error('invalidparentpostid', 'forum');
 162     }
 163     if (! $discussion = $DB->get_record("forum_discussions", array("id" => $parent->discussion))) {
 164         print_error('notpartofdiscussion', 'forum');
 165     }
 166     if (! $forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 167         print_error('invalidforumid', 'forum');
 168     }
 169     if (! $course = $DB->get_record("course", array("id" => $discussion->course))) {
 170         print_error('invalidcourseid');
 171     }
 172     if (! $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 173         print_error('invalidcoursemodule');
 174     }
 175
 176     // Ensure lang, theme, etc. is set up properly. MDL-6926
 177     $PAGE->set_cm($cm, $course, $forum);
 178
 179     $coursecontext = context_course::instance($course->id);
 180     $modcontext    = context_module::instance($cm->id);
 181
 182     if (! forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext)) {
 183         if (!isguestuser()) {
 184             if (!is_enrolled($coursecontext)) {  // User is a guest here!
 185                 $SESSION->wantsurl = qualified_me();
 186                 $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
 187                 redirect($CFG->wwwroot.'/enrol/index.php?id='.$course->id, get_string('youneedtoenrol'));
 188             }
 189         }
 190         print_error('nopostforum', 'forum');
 191     }
 192
 193     // Make sure user can post here
 194     if (isset($cm->groupmode) && empty($course->groupmodeforce)) {
 195         $groupmode =  $cm->groupmode;
 196     } else {
 197         $groupmode = $course->groupmode;
 198     }
 199     if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $modcontext)) {
 200         if ($discussion->groupid == -1) {
 201             print_error('nopostforum', 'forum');
 202         } else {
 203             if (!groups_is_member($discussion->groupid)) {
 204                 print_error('nopostforum', 'forum');
 205             }
 206         }
 207     }
 208
 209     if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
 210         print_error("activityiscurrentlyhidden");
 211     }
 212
 213     // Load up the $post variable.
 214
 215     $post = new stdClass();
 216     $post->course      = $course->id;
 217     $post->forum       = $forum->id;
 218     $post->discussion  = $parent->discussion;
 219     $post->parent      = $parent->id;
 220     $post->subject     = $parent->subject;
 221     $post->userid      = $USER->id;
 222     $post->message     = '';
 223
 224     $post->groupid = ($discussion->groupid == -1) ? 0 : $discussion->groupid;
 225
 226     $strre = get_string('re', 'forum');
 227     if (!(substr($post->subject, 0, strlen($strre)) == $strre)) {
 228         $post->subject = $strre.' '.$post->subject;
 229     }
 230
 231     // Unsetting this will allow the correct return URL to be calculated later.
 232     unset($SESSION->fromdiscussion);
 233
 234 } else if (!empty($edit)) {  // User is editing their own post
 235
 236     if (! $post = forum_get_post_full($edit)) {
 237         print_error('invalidpostid', 'forum');
 238     }
 239     if ($post->parent) {
 240         if (! $parent = forum_get_post_full($post->parent)) {
 241             print_error('invalidparentpostid', 'forum');
 242         }
 243     }
 244
 245     if (! $discussion = $DB->get_record("forum_discussions", array("id" => $post->discussion))) {
 246         print_error('notpartofdiscussion', 'forum');
 247     }
 248     if (! $forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 249         print_error('invalidforumid', 'forum');
 250     }
 251     if (! $course = $DB->get_record("course", array("id" => $discussion->course))) {
 252         print_error('invalidcourseid');
 253     }
 254     if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 255         print_error('invalidcoursemodule');
 256     } else {
 257         $modcontext = context_module::instance($cm->id);
 258     }
 259
 260     $PAGE->set_cm($cm, $course, $forum);
 261
 262     if (!($forum->type == 'news' && !$post->parent && $discussion->timestart > time())) {
 263         if (((time() - $post->created) > $CFG->maxeditingtime) and
 264                     !has_capability('mod/forum:editanypost', $modcontext)) {
 265             print_error('maxtimehaspassed', 'forum', '', format_time($CFG->maxeditingtime));
 266         }
 267     }
 268     if (($post->userid <> $USER->id) and
 269                 !has_capability('mod/forum:editanypost', $modcontext)) {
 270         print_error('cannoteditposts', 'forum');
 271     }
 272
 273
 274     // Load up the $post variable.
 275     $post->edit   = $edit;
 276     $post->course = $course->id;
 277     $post->forum  = $forum->id;
 278     $post->groupid = ($discussion->groupid == -1) ? 0 : $discussion->groupid;
 279
 280     $post = trusttext_pre_edit($post, 'message', $modcontext);
 281
 282     // Unsetting this will allow the correct return URL to be calculated later.
 283     unset($SESSION->fromdiscussion);
 284
 285 }else if (!empty($delete)) {  // User is deleting a post
 286
 287     if (! $post = forum_get_post_full($delete)) {
 288         print_error('invalidpostid', 'forum');
 289     }
 290     if (! $discussion = $DB->get_record("forum_discussions", array("id" => $post->discussion))) {
 291         print_error('notpartofdiscussion', 'forum');
 292     }
 293     if (! $forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 294         print_error('invalidforumid', 'forum');
 295     }
 296     if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) {
 297         print_error('invalidcoursemodule');
 298     }
 299     if (!$course = $DB->get_record('course', array('id' => $forum->course))) {
 300         print_error('invalidcourseid');
 301     }
 302
 303     require_login($course, false, $cm);
 304     $modcontext = context_module::instance($cm->id);
 305
 306     if ( !(($post->userid == $USER->id && has_capability('mod/forum:deleteownpost', $modcontext))
 307                 || has_capability('mod/forum:deleteanypost', $modcontext)) ) {
 308         print_error('cannotdeletepost', 'forum');
 309     }
 310
 311
 312     $replycount = forum_count_replies($post);
 313
 314     if (!empty($confirm) && confirm_sesskey()) {    // User has confirmed the delete
 315         //check user capability to delete post.
 316         $timepassed = time() - $post->created;
 317         if (($timepassed > $CFG->maxeditingtime) && !has_capability('mod/forum:deleteanypost', $modcontext)) {
 318             print_error("cannotdeletepost", "forum",
 319                       forum_go_back_to("discuss.php?d=$post->discussion"));
 320         }
 321
 322         if ($post->totalscore) {
 323             notice(get_string('couldnotdeleteratings', 'rating'),
 324                     forum_go_back_to("discuss.php?d=$post->discussion"));
 325
 326         } else if ($replycount && !has_capability('mod/forum:deleteanypost', $modcontext)) {
 327             print_error("couldnotdeletereplies", "forum",
 328                     forum_go_back_to("discuss.php?d=$post->discussion"));
 329
 330         } else {
 331             if (! $post->parent) {  // post is a discussion topic as well, so delete discussion
 332                 if ($forum->type == 'single') {
 333                     notice("Sorry, but you are not allowed to delete that discussion!",
 334                             forum_go_back_to("discuss.php?d=$post->discussion"));
 335                 }
 336                 forum_delete_discussion($discussion, false, $course, $cm, $forum);
 337
 338                 $params = array(
 339                     'objectid' => $discussion->id,
 340                     'context' => $modcontext,
 341                     'other' => array(
 342                         'forumid' => $forum->id,
 343                     )
 344                 );
 345
 346                 $event = \mod_forum\event\discussion_deleted::create($params);
 347                 $event->add_record_snapshot('forum_discussions', $discussion);
 348                 $event->trigger();
 349
 350                 redirect("view.php?f=$discussion->forum");
 351
 352             } else if (forum_delete_post($post, has_capability('mod/forum:deleteanypost', $modcontext),
 353                 $course, $cm, $forum)) {
 354
 355                 if ($forum->type == 'single') {
 356                     // Single discussion forums are an exception. We show
 357                     // the forum itself since it only has one discussion
 358                     // thread.
 359                     $discussionurl = "view.php?f=$forum->id";
 360                 } else {
 361                     $discussionurl = "discuss.php?d=$post->discussion";
 362                 }
 363
 364                 add_to_log($discussion->course, "forum", "delete post", $discussionurl, "$post->id", $cm->id);
 365
 366                 redirect(forum_go_back_to($discussionurl));
 367             } else {
 368                 print_error('errorwhiledelete', 'forum');
 369             }
 370         }
 371
 372
 373     } else { // User just asked to delete something
 374
 375         forum_set_return();
 376         $PAGE->navbar->add(get_string('delete', 'forum'));
 377         $PAGE->set_title($course->shortname);
 378         $PAGE->set_heading($course->fullname);
 379
 380         if ($replycount) {
 381             if (!has_capability('mod/forum:deleteanypost', $modcontext)) {
 382                 print_error("couldnotdeletereplies", "forum",
 383                       forum_go_back_to("discuss.php?d=$post->discussion"));
 384             }
 385             echo $OUTPUT->header();
 386             echo $OUTPUT->heading(format_string($forum->name), 2);
 387             echo $OUTPUT->confirm(get_string("deletesureplural", "forum", $replycount+1),
 388                          "post.php?delete=$delete&confirm=$delete",
 389                          $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 390
 391             forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 392
 393             if (empty($post->edit)) {
 394                 $forumtracked = forum_tp_is_tracked($forum);
 395                 $posts = forum_get_all_discussion_posts($discussion->id, "created ASC", $forumtracked);
 396                 forum_print_posts_nested($course, $cm, $forum, $discussion, $post, false, false, $forumtracked, $posts);
 397             }
 398         } else {
 399             echo $OUTPUT->header();
 400             echo $OUTPUT->heading(format_string($forum->name), 2);
 401             echo $OUTPUT->confirm(get_string("deletesure", "forum", $replycount),
 402                          "post.php?delete=$delete&confirm=$delete",
 403                          $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 404             forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 405         }
 406
 407     }
 408     echo $OUTPUT->footer();
 409     die;
 410
 411
 412 } else if (!empty($prune)) {  // Pruning
 413
 414     if (!$post = forum_get_post_full($prune)) {
 415         print_error('invalidpostid', 'forum');
 416     }
 417     if (!$discussion = $DB->get_record("forum_discussions", array("id" => $post->discussion))) {
 418         print_error('notpartofdiscussion', 'forum');
 419     }
 420     if (!$forum = $DB->get_record("forum", array("id" => $discussion->forum))) {
 421         print_error('invalidforumid', 'forum');
 422     }
 423     if ($forum->type == 'single') {
 424         print_error('cannotsplit', 'forum');
 425     }
 426     if (!$post->parent) {
 427         print_error('alreadyfirstpost', 'forum');
 428     }
 429     if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) { // For the logs
 430         print_error('invalidcoursemodule');
 431     } else {
 432         $modcontext = context_module::instance($cm->id);
 433     }
 434     if (!has_capability('mod/forum:splitdiscussions', $modcontext)) {
 435         print_error('cannotsplit', 'forum');
 436     }
 437
 438     if (!empty($name) && confirm_sesskey()) {    // User has confirmed the prune
 439
 440         $newdiscussion = new stdClass();
 441         $newdiscussion->course       = $discussion->course;
 442         $newdiscussion->forum        = $discussion->forum;
 443         $newdiscussion->name         = $name;
 444         $newdiscussion->firstpost    = $post->id;
 445         $newdiscussion->userid       = $discussion->userid;
 446         $newdiscussion->groupid      = $discussion->groupid;
 447         $newdiscussion->assessed     = $discussion->assessed;
 448         $newdiscussion->usermodified = $post->userid;
 449         $newdiscussion->timestart    = $discussion->timestart;
 450         $newdiscussion->timeend      = $discussion->timeend;
 451
 452         $newid = $DB->insert_record('forum_discussions', $newdiscussion);
 453
 454         $newpost = new stdClass();
 455         $newpost->id      = $post->id;
 456         $newpost->parent  = 0;
 457         $newpost->subject = $name;
 458
 459         $DB->update_record("forum_posts", $newpost);
 460
 461         forum_change_discussionid($post->id, $newid);
 462
 463         // update last post in each discussion
 464         forum_discussion_update_last_post($discussion->id);
 465         forum_discussion_update_last_post($newid);
 466
 467         add_to_log($discussion->course, "forum", "prune post",
 468                        "discuss.php?d=$newid", "$post->id", $cm->id);
 469
 470         redirect(forum_go_back_to("discuss.php?d=$newid"));
 471
 472     } else { // User just asked to prune something
 473
 474         $course = $DB->get_record('course', array('id' => $forum->course));
 475
 476         $PAGE->set_cm($cm);
 477         $PAGE->set_context($modcontext);
 478         $PAGE->navbar->add(format_string($post->subject, true), new moodle_url('/mod/forum/discuss.php', array('d'=>$discussion->id)));
 479         $PAGE->navbar->add(get_string("prune", "forum"));
 480         $PAGE->set_title(format_string($discussion->name).": ".format_string($post->subject));
 481         $PAGE->set_heading($course->fullname);
 482         echo $OUTPUT->header();
 483         echo $OUTPUT->heading(format_string($forum->name), 2);
 484         echo $OUTPUT->heading(get_string('pruneheading', 'forum'), 3);
 485         echo '<center>';
 486
 487         include('prune.html');
 488
 489         forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 490         echo '</center>';
 491     }
 492     echo $OUTPUT->footer();
 493     die;
 494 } else {
 495     print_error('unknowaction');
 496
 497 }
 498
 499 if (!isset($coursecontext)) {
 500     // Has not yet been set by post.php.
 501     $coursecontext = context_course::instance($forum->course);
 502 }
 503
 504
 505 // from now on user must be logged on properly
 506
 507 if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
 508     print_error('invalidcoursemodule');
 509 }
 510 $modcontext = context_module::instance($cm->id);
 511 require_login($course, false, $cm);
 512
 513 if (isguestuser()) {
 514     // just in case
 515     print_error('noguest');
 516 }
 517
 518 if (!isset($forum->maxattachments)) {  // TODO - delete this once we add a field to the forum table
 519     $forum->maxattachments = 3;
 520 }
 521
 522 $thresholdwarning = forum_check_throttling($forum, $cm);
 523 $mform_post = new mod_forum_post_form('post.php', array('course' => $course,
 524                                                         'cm' => $cm,
 525                                                         'coursecontext' => $coursecontext,
 526                                                         'modcontext' => $modcontext,
 527                                                         'forum' => $forum,
 528                                                         'post' => $post,
 529                                                         'thresholdwarning' => $thresholdwarning,
 530                                                         'edit' => $edit), 'post', '', array('id' => 'mformforum'));
 531
 532 $draftitemid = file_get_submitted_draft_itemid('attachments');
 533 file_prepare_draft_area($draftitemid, $modcontext->id, 'mod_forum', 'attachment', empty($post->id)?null:$post->id, mod_forum_post_form::attachment_options($forum));
 534
 535 //load data into form NOW!
 536
 537 if ($USER->id != $post->userid) {   // Not the original author, so add a message to the end
 538     $data = new stdClass();
 539     $data->date = userdate($post->modified);
 540     if ($post->messageformat == FORMAT_HTML) {
 541         $data->name = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$USER->id.'&course='.$post->course.'">'.
 542                        fullname($USER).'</a>';
 543         $post->message .= '<p><span class="edited">('.get_string('editedby', 'forum', $data).')</span></p>';
 544     } else {
 545         $data->name = fullname($USER);
 546         $post->message .= "\n\n(".get_string('editedby', 'forum', $data).')';
 547     }
 548     unset($data);
 549 }
 550
 551 $formheading = '';
 552 if (!empty($parent)) {
 553     $heading = get_string("yourreply", "forum");
 554     $formheading = get_string('reply', 'forum');
 555 } else {
 556     if ($forum->type == 'qanda') {
 557         $heading = get_string('yournewquestion', 'forum');
 558     } else {
 559         $heading = get_string('yournewtopic', 'forum');
 560     }
 561 }
 562
 563 if (forum_is_subscribed($USER->id, $forum->id)) {
 564     $subscribe = true;
 565
 566 } else if (forum_user_has_posted($forum->id, 0, $USER->id)) {
 567     $subscribe = false;
 568
 569 } else {
 570     // user not posted yet - use subscription default specified in profile
 571     $subscribe = !empty($USER->autosubscribe);
 572 }
 573
 574 $postid = empty($post->id) ? null : $post->id;
 575 $draftid_editor = file_get_submitted_draft_itemid('message');
 576 $currenttext = file_prepare_draft_area($draftid_editor, $modcontext->id, 'mod_forum', 'post', $postid, mod_forum_post_form::editor_options($modcontext, $postid), $post->message);
 577 $mform_post->set_data(array(        'attachments'=>$draftitemid,
 578                                     'general'=>$heading,
 579                                     'subject'=>$post->subject,
 580                                     'message'=>array(
 581                                         'text'=>$currenttext,
 582                                         'format'=>empty($post->messageformat) ? editors_get_preferred_format() : $post->messageformat,
 583                                         'itemid'=>$draftid_editor
 584                                     ),
 585                                     'subscribe'=>$subscribe?1:0,
 586                                     'mailnow'=>!empty($post->mailnow),
 587                                     'userid'=>$post->userid,
 588                                     'parent'=>$post->parent,
 589                                     'discussion'=>$post->discussion,
 590                                     'course'=>$course->id) +
 591                                     $page_params +
 592
 593                             (isset($post->format)?array(
 594                                     'format'=>$post->format):
 595                                 array())+
 596
 597                             (isset($discussion->timestart)?array(
 598                                     'timestart'=>$discussion->timestart):
 599                                 array())+
 600
 601                             (isset($discussion->timeend)?array(
 602                                     'timeend'=>$discussion->timeend):
 603                                 array())+
 604
 605                             (isset($post->groupid)?array(
 606                                     'groupid'=>$post->groupid):
 607                                 array())+
 608
 609                             (isset($discussion->id)?
 610                                     array('discussion'=>$discussion->id):
 611                                     array()));
 612
 613 if ($fromform = $mform_post->get_data()) {
 614
 615     if (empty($SESSION->fromurl)) {
 616         $errordestination = "$CFG->wwwroot/mod/forum/view.php?f=$forum->id";
 617     } else {
 618         $errordestination = $SESSION->fromurl;
 619     }
 620
 621     $fromform->itemid        = $fromform->message['itemid'];
 622     $fromform->messageformat = $fromform->message['format'];
 623     $fromform->message       = $fromform->message['text'];
 624     // WARNING: the $fromform->message array has been overwritten, do not use it anymore!
 625     $fromform->messagetrust  = trusttext_trusted($modcontext);
 626
 627     $contextcheck = isset($fromform->groupinfo) && has_capability('mod/forum:movediscussions', $modcontext);
 628
 629     if ($fromform->edit) {           // Updating a post
 630         unset($fromform->groupid);
 631         $fromform->id = $fromform->edit;
 632         $message = '';
 633
 634         //fix for bug #4314
 635         if (!$realpost = $DB->get_record('forum_posts', array('id' => $fromform->id))) {
 636             $realpost = new stdClass();
 637             $realpost->userid = -1;
 638         }
 639
 640
 641         // if user has edit any post capability
 642         // or has either startnewdiscussion or reply capability and is editting own post
 643         // then he can proceed
 644         // MDL-7066
 645         if ( !(($realpost->userid == $USER->id && (has_capability('mod/forum:replypost', $modcontext)
 646                             || has_capability('mod/forum:startdiscussion', $modcontext))) ||
 647                             has_capability('mod/forum:editanypost', $modcontext)) ) {
 648             print_error('cannotupdatepost', 'forum');
 649         }
 650
 651         // If the user has access to all groups and they are changing the group, then update the post.
 652         if ($contextcheck) {
 653             if (empty($fromform->groupinfo)) {
 654                 $fromform->groupinfo = -1;
 655             }
 656             $DB->set_field('forum_discussions' ,'groupid' , $fromform->groupinfo, array('firstpost' => $fromform->id));
 657         }
 658
 659         $updatepost = $fromform; //realpost
 660         $updatepost->forum = $forum->id;
 661         if (!forum_update_post($updatepost, $mform_post, $message)) {
 662             print_error("couldnotupdate", "forum", $errordestination);
 663         }
 664
 665         // MDL-11818
 666         if (($forum->type == 'single') && ($updatepost->parent == '0')){ // updating first post of single discussion type -> updating forum intro
 667             $forum->intro = $updatepost->message;
 668             $forum->timemodified = time();
 669             $DB->update_record("forum", $forum);
 670         }
 671
 672         $timemessage = 2;
 673         if (!empty($message)) { // if we're printing stuff about the file upload
 674             $timemessage = 4;
 675         }
 676
 677         if ($realpost->userid == $USER->id) {
 678             $message .= '<br />'.get_string("postupdated", "forum");
 679         } else {
 680             $realuser = $DB->get_record('user', array('id' => $realpost->userid));
 681             $message .= '<br />'.get_string("editedpostupdated", "forum", fullname($realuser));
 682         }
 683
 684         if ($subscribemessage = forum_post_subscription($fromform, $forum)) {
 685             $timemessage = 4;
 686         }
 687         if ($forum->type == 'single') {
 688             // Single discussion forums are an exception. We show
 689             // the forum itself since it only has one discussion
 690             // thread.
 691             $discussionurl = "view.php?f=$forum->id";
 692         } else {
 693             $discussionurl = "discuss.php?d=$discussion->id#p$fromform->id";
 694         }
 695         add_to_log($course->id, "forum", "update post",
 696                 "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 697
 698         redirect(forum_go_back_to("$discussionurl"), $message.$subscribemessage, $timemessage);
 699
 700         exit;
 701
 702
 703     } else if ($fromform->discussion) { // Adding a new post to an existing discussion
 704         // Before we add this we must check that the user will not exceed the blocking threshold.
 705         forum_check_blocking_threshold($thresholdwarning);
 706
 707         unset($fromform->groupid);
 708         $message = '';
 709         $addpost = $fromform;
 710         $addpost->forum=$forum->id;
 711         if ($fromform->id = forum_add_new_post($addpost, $mform_post, $message)) {
 712
 713             $timemessage = 2;
 714             if (!empty($message)) { // if we're printing stuff about the file upload
 715                 $timemessage = 4;
 716             }
 717
 718             if ($subscribemessage = forum_post_subscription($fromform, $forum)) {
 719                 $timemessage = 4;
 720             }
 721
 722             if (!empty($fromform->mailnow)) {
 723                 $message .= get_string("postmailnow", "forum");
 724                 $timemessage = 4;
 725             } else {
 726                 $message .= '<p>'.get_string("postaddedsuccess", "forum") . '</p>';
 727                 $message .= '<p>'.get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
 728             }
 729
 730             if ($forum->type == 'single') {
 731                 // Single discussion forums are an exception. We show
 732                 // the forum itself since it only has one discussion
 733                 // thread.
 734                 $discussionurl = "view.php?f=$forum->id";
 735             } else {
 736                 $discussionurl = "discuss.php?d=$discussion->id";
 737             }
 738             add_to_log($course->id, "forum", "add post",
 739                       "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 740
 741             // Update completion state
 742             $completion=new completion_info($course);
 743             if($completion->is_enabled($cm) &&
 744                 ($forum->completionreplies || $forum->completionposts)) {
 745                 $completion->update_state($cm,COMPLETION_COMPLETE);
 746             }
 747
 748             redirect(forum_go_back_to("$discussionurl#p$fromform->id"), $message.$subscribemessage, $timemessage);
 749
 750         } else {
 751             print_error("couldnotadd", "forum", $errordestination);
 752         }
 753         exit;
 754
 755     } else { // Adding a new discussion.
 756         // Before we add this we must check that the user will not exceed the blocking threshold.
 757         forum_check_blocking_threshold($thresholdwarning);
 758
 759         if (!forum_user_can_post_discussion($forum, $fromform->groupid, -1, $cm, $modcontext)) {
 760             print_error('cannotcreatediscussion', 'forum');
 761         }
 762         // If the user has access all groups capability let them choose the group.
 763         if ($contextcheck) {
 764             $fromform->groupid = $fromform->groupinfo;
 765         }
 766         if (empty($fromform->groupid)) {
 767             $fromform->groupid = -1;
 768         }
 769
 770         $fromform->mailnow = empty($fromform->mailnow) ? 0 : 1;
 771
 772         $discussion = $fromform;
 773         $discussion->name    = $fromform->subject;
 774
 775         $newstopic = false;
 776         if ($forum->type == 'news' && !$fromform->parent) {
 777             $newstopic = true;
 778         }
 779         $discussion->timestart = $fromform->timestart;
 780         $discussion->timeend = $fromform->timeend;
 781
 782         $message = '';
 783         if ($discussion->id = forum_add_discussion($discussion, $mform_post, $message)) {
 784
 785             $params = array(
 786                 'context' => $modcontext,
 787                 'objectid' => $discussion->id,
 788                 'other' => array(
 789                     'forumid' => $forum->id,
 790                 )
 791             );
 792             $event = \mod_forum\event\discussion_created::create($params);
 793             $event->add_record_snapshot('forum_discussions', $discussion);
 794             $event->trigger();
 795
 796             $timemessage = 2;
 797             if (!empty($message)) { // if we're printing stuff about the file upload
 798                 $timemessage = 4;
 799             }
 800
 801             if ($fromform->mailnow) {
 802                 $message .= get_string("postmailnow", "forum");
 803                 $timemessage = 4;
 804             } else {
 805                 $message .= '<p>'.get_string("postaddedsuccess", "forum") . '</p>';
 806                 $message .= '<p>'.get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
 807             }
 808
 809             if ($subscribemessage = forum_post_subscription($discussion, $forum)) {
 810                 $timemessage = 6;
 811             }
 812
 813             // Update completion status
 814             $completion=new completion_info($course);
 815             if($completion->is_enabled($cm) &&
 816                 ($forum->completiondiscussions || $forum->completionposts)) {
 817                 $completion->update_state($cm,COMPLETION_COMPLETE);
 818             }
 819
 820             redirect(forum_go_back_to("view.php?f=$fromform->forum"), $message.$subscribemessage, $timemessage);
 821
 822         } else {
 823             print_error("couldnotadd", "forum", $errordestination);
 824         }
 825
 826         exit;
 827     }
 828 }
 829
 830
 831
 832 // To get here they need to edit a post, and the $post
 833 // variable will be loaded with all the particulars,
 834 // so bring up the form.
 835
 836 // $course, $forum are defined.  $discussion is for edit and reply only.
 837
 838 if ($post->discussion) {
 839     if (! $toppost = $DB->get_record("forum_posts", array("discussion" => $post->discussion, "parent" => 0))) {
 840         print_error('cannotfindparentpost', 'forum', '', $post->id);
 841     }
 842 } else {
 843     $toppost = new stdClass();
 844     $toppost->subject = ($forum->type == "news") ? get_string("addanewtopic", "forum") :
 845                                                    get_string("addanewdiscussion", "forum");
 846 }
 847
 848 if (empty($post->edit)) {
 849     $post->edit = '';
 850 }
 851
 852 if (empty($discussion->name)) {
 853     if (empty($discussion)) {
 854         $discussion = new stdClass();
 855     }
 856     $discussion->name = $forum->name;
 857 }
 858 if ($forum->type == 'single') {
 859     // There is only one discussion thread for this forum type. We should
 860     // not show the discussion name (same as forum name in this case) in
 861     // the breadcrumbs.
 862     $strdiscussionname = '';
 863 } else {
 864     // Show the discussion name in the breadcrumbs.
 865     $strdiscussionname = format_string($discussion->name).':';
 866 }
 867
 868 $forcefocus = empty($reply) ? NULL : 'message';
 869
 870 if (!empty($discussion->id)) {
 871     $PAGE->navbar->add(format_string($toppost->subject, true), "discuss.php?d=$discussion->id");
 872 }
 873
 874 if ($post->parent) {
 875     $PAGE->navbar->add(get_string('reply', 'forum'));
 876 }
 877
 878 if ($edit) {
 879     $PAGE->navbar->add(get_string('edit', 'forum'));
 880 }
 881
 882 $PAGE->set_title("$course->shortname: $strdiscussionname ".format_string($toppost->subject));
 883 $PAGE->set_heading($course->fullname);
 884
 885 echo $OUTPUT->header();
 886 echo $OUTPUT->heading(format_string($forum->name), 2);
 887
 888 // checkup
 889 if (!empty($parent) && !forum_user_can_see_post($forum, $discussion, $post, null, $cm)) {
 890     print_error('cannotreply', 'forum');
 891 }
 892 if (empty($parent) && empty($edit) && !forum_user_can_post_discussion($forum, $groupid, -1, $cm, $modcontext)) {
 893     print_error('cannotcreatediscussion', 'forum');
 894 }
 895
 896 if ($forum->type == 'qanda'
 897             && !has_capability('mod/forum:viewqandawithoutposting', $modcontext)
 898             && !empty($discussion->id)
 899             && !forum_user_has_posted($forum->id, $discussion->id, $USER->id)) {
 900     echo $OUTPUT->notification(get_string('qandanotify','forum'));
 901 }
 902
 903 // If there is a warning message and we are not editing a post we need to handle the warning.
 904 if (!empty($thresholdwarning) && !$edit) {
 905     // Here we want to throw an exception if they are no longer allowed to post.
 906     forum_check_blocking_threshold($thresholdwarning);
 907 }
 908
 909 if (!empty($parent)) {
 910     if (!$discussion = $DB->get_record('forum_discussions', array('id' => $parent->discussion))) {
 911         print_error('notpartofdiscussion', 'forum');
 912     }
 913
 914     forum_print_post($parent, $discussion, $forum, $cm, $course, false, false, false);
 915     if (empty($post->edit)) {
 916         if ($forum->type != 'qanda' || forum_user_can_see_discussion($forum, $discussion, $modcontext)) {
 917             $forumtracked = forum_tp_is_tracked($forum);
 918             $posts = forum_get_all_discussion_posts($discussion->id, "created ASC", $forumtracked);
 919             forum_print_posts_threaded($course, $cm, $forum, $discussion, $parent, 0, false, $forumtracked, $posts);
 920         }
 921     }
 922 } else {
 923     if (!empty($forum->intro)) {
 924         echo $OUTPUT->box(format_module_intro('forum', $forum, $cm->id), 'generalbox', 'intro');
 925
 926         if (!empty($CFG->enableplagiarism)) {
 927             require_once($CFG->libdir.'/plagiarismlib.php');
 928             echo plagiarism_print_disclosure($cm->id);
 929         }
 930     }
 931 }
 932
 933 if (!empty($formheading)) {
 934     echo $OUTPUT->heading($formheading, 2, array('class' => 'accesshide'));
 935 }
 936 $mform_post->display();
 937
 938 echo $OUTPUT->footer();
 939