mod/forum/post.php

   1 <?php // $Id$
   2
   3 //  Edit and save a new post to a discussion
   4
   5     require_once('../../config.php');
   6     require_once('lib.php');
   7     require_once('post_form.php');
   8
   9     $reply   = optional_param('reply', 0, PARAM_INT);
  10     $forum   = optional_param('forum', 0, PARAM_INT);
  11     $edit    = optional_param('edit', 0, PARAM_INT);
  12     $delete  = optional_param('delete', 0, PARAM_INT);
  13     $prune   = optional_param('prune', 0, PARAM_INT);
  14     $name    = optional_param('name', '', PARAM_CLEAN);
  15     $confirm = optional_param('confirm', 0, PARAM_INT);
  16
  17
  18     //these page_params will be passed as hidden variables later in the form.
  19     $page_params = array('reply'=>$reply, 'forum'=>$forum, 'edit'=>$edit);
  20
  21     $sitecontext = get_context_instance(CONTEXT_SYSTEM);
  22
  23     if (has_capability('moodle/legacy:guest', $sitecontext, NULL, false)) {
  24
  25         $wwwroot = $CFG->wwwroot.'/login/index.php';
  26         if (!empty($CFG->loginhttps)) {
  27             $wwwroot = str_replace('http', 'https', $wwwroot);
  28         }
  29
  30         if (!empty($forum)) {      // User is starting a new discussion in a forum
  31             if (! $forum = get_record('forum', 'id', $forum)) {
  32                 error('The forum number was incorrect');
  33             }
  34         } else if (!empty($reply)) {      // User is writing a new reply
  35             if (! $parent = forum_get_post_full($reply)) {
  36                 error('Parent post ID was incorrect');
  37             }
  38             if (! $discussion = get_record('forum_discussions', 'id', $parent->discussion)) {
  39                 error('This post is not part of a discussion!');
  40             }
  41             if (! $forum = get_record('forum', 'id', $discussion->forum)) {
  42                 error('The forum number was incorrect');
  43             }
  44         }
  45         if (! $course = get_record('course', 'id', $forum->course)) {
  46             error('The course number was incorrect');
  47         }
  48
  49         if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
  50             error('Could not get the course module for the forum instance.');
  51         } else {
  52             $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
  53         }
  54
  55         $strforums = get_string('modulenameplural', 'forum');
  56
  57         if (!get_referer()) {   // No referer - probably coming in via email  See MDL-9052
  58             require_login();
  59         }
  60
  61         $crumbs[] = array('name' => get_string("forums", "forum"), 'link' => "../forum/view.php?f=$forum->id", 'type' => 'activity');
  62         $crumbs[] = array('name' => format_string($forum->name,true), 'link' => '../forum/index.php?id=$course->id', 'type' => 'activityinstance');
  63
  64         $navigation = build_navigation($crumbs);
  65
  66
  67         print_header($course->shortname, $course->fullname, $navigation, '' , '', true, "", navmenu($course, $cm));
  68
  69         notice_yesno(get_string('noguestpost', 'forum').'<br /><br />'.get_string('liketologin'),
  70                      $wwwroot, get_referer(false));
  71         print_footer($course);
  72         exit;
  73     }
  74
  75     require_login(0, false);   // Script is useless unless they're logged in
  76
  77     if (!empty($forum)) {      // User is starting a new discussion in a forum
  78         if (! $forum = get_record("forum", "id", $forum)) {
  79             error("The forum number was incorrect ($forum)");
  80         }
  81         if (! $course = get_record("course", "id", $forum->course)) {
  82             error("The course number was incorrect ($forum->course)");
  83         }
  84         $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
  85         if (! forum_user_can_post_discussion($forum)) {
  86             if (has_capability('moodle/legacy:guest', $coursecontext, NULL, false)) {  // User is a guest here!
  87                 $SESSION->wantsurl = $FULLME;
  88                 $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
  89                 redirect($CFG->wwwroot.'/course/enrol.php?id='.$course->id, get_string('youneedtoenrol'));
  90             } else {
  91                 print_error('nopostforum', 'forum');
  92             }
  93         }
  94
  95         if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
  96             if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
  97                 error(get_string("activityiscurrentlyhidden"));
  98             }
  99         }
 100
 101         $SESSION->fromurl = $_SERVER["HTTP_REFERER"];
 102
 103
 104         // Load up the $post variable.
 105
 106         $post = new object();
 107         $post->course     = $course->id;
 108         $post->forum      = $forum->id;
 109         $post->discussion = 0;           // ie discussion # not defined yet
 110         $post->parent     = 0;
 111         $post->subject    = '';
 112         $post->userid     = $USER->id;
 113         $post->message    = '';
 114
 115         $post->groupid = get_current_group($course->id);
 116         if ($post->groupid == 0) {
 117             $post->groupid = -1;
 118         }
 119
 120         forum_set_return();
 121
 122     } else if (!empty($reply)) {      // User is writing a new reply
 123
 124         if (! $parent = forum_get_post_full($reply)) {
 125             error("Parent post ID was incorrect");
 126         }
 127         if (! $discussion = get_record("forum_discussions", "id", $parent->discussion)) {
 128             error("This post is not part of a discussion!");
 129         }
 130         if (! $forum = get_record("forum", "id", $discussion->forum)) {
 131             error("The forum number was incorrect ($discussion->forum)");
 132         }
 133         if (! $course = get_record("course", "id", $discussion->course)) {
 134             error("The course number was incorrect ($discussion->course)");
 135         }
 136
 137         $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
 138         $modcontext = get_context_instance(CONTEXT_MODULE, $forum->id);
 139
 140         if (! forum_user_can_post($forum)) {
 141             if (has_capability('moodle/legacy:guest', $coursecontext, NULL, false)) {  // User is a guest here!
 142                 $SESSION->wantsurl = $FULLME;
 143                 $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
 144                 redirect($CFG->wwwroot.'/course/enrol.php?id='.$course->id, get_string('youneedtoenrol'));
 145             } else {
 146                 print_error('nopostforum', 'forum');
 147             }
 148         }
 149
 150         if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 151             if (groupmode($course, $cm)) {   // Make sure user can post here
 152                 $mygroupid = mygroupid($course->id);
 153                 if (!((empty($mygroupid) and $discussion->groupid == -1)
 154                         || (ismember($discussion->groupid)/*$mygroupid == $discussion->groupid*/)
 155                         || has_capability('moodle/site:accessallgroups', $modcontext, NULL, false) )) {
 156                     print_error('nopostdiscussion', 'forum');
 157                 }
 158             }
 159             if (!$cm->visible and !has_capability('moodle/course:manageactivities', $coursecontext)) {
 160                 error(get_string("activityiscurrentlyhidden"));
 161             }
 162         }
 163
 164         // Load up the $post variable.
 165
 166         $post = new object();
 167         $post->course      = $course->id;
 168         $post->forum       = $forum->id;
 169         $post->discussion  = $parent->discussion;
 170         $post->parent      = $parent->id;
 171         $post->subject     = $parent->subject;
 172         $post->userid      = $USER->id;
 173         $post->message     = '';
 174
 175         $strre = get_string('re', 'forum');
 176         if (!(substr($post->subject, 0, strlen($strre)) == $strre)) {
 177             $post->subject = $strre.' '.$post->subject;
 178         }
 179
 180         unset($SESSION->fromdiscussion);
 181
 182     } else if (!empty($edit)) {  // User is editing their own post
 183
 184         if (! $post = forum_get_post_full($edit)) {
 185             error("Post ID was incorrect");
 186         }
 187         if ($post->parent) {
 188             if (! $parent = forum_get_post_full($post->parent)) {
 189                 error("Parent post ID was incorrect ($post->parent)");
 190             }
 191         }
 192
 193         if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
 194             error("This post is not part of a discussion! ($edit)");
 195         }
 196         if (! $forum = get_record("forum", "id", $discussion->forum)) {
 197             error("The forum number was incorrect ($discussion->forum)");
 198         }
 199         if (! $course = get_record("course", "id", $discussion->course)) {
 200             error("The course number was incorrect ($discussion->course)");
 201         }
 202         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 203             error('Could not get the course module for the forum instance.');
 204         } else {
 205             $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 206         }
 207         if (!($forum->type == 'news' && !$post->parent && $discussion->timestart > time())) {
 208             if (((time() - $post->created) > $CFG->maxeditingtime) and
 209                         !has_capability('mod/forum:editanypost', $modcontext)) {
 210                 error( get_string("maxtimehaspassed", "forum", format_time($CFG->maxeditingtime)) );
 211             }
 212         }
 213         if (($post->userid <> $USER->id) and
 214                     !has_capability('mod/forum:editanypost', $modcontext)) {
 215             error("You can't edit other people's posts!");
 216         }
 217
 218
 219         // Load up the $post variable.
 220         $post->edit   = $edit;
 221         $post->course = $course->id;
 222         $post->forum  = $forum->id;
 223
 224         trusttext_prepare_edit($post->message, $post->format, can_use_html_editor(), $modcontext);
 225
 226         unset($SESSION->fromdiscussion);
 227
 228
 229     }else if (!empty($delete)) {  // User is deleting a post
 230
 231         if (! $post = forum_get_post_full($delete)) {
 232             error("Post ID was incorrect");
 233         }
 234         if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
 235             error("This post is not part of a discussion!");
 236         }
 237         if (! $forum = get_record("forum", "id", $discussion->forum)) {
 238             error("The forum number was incorrect ($discussion->forum)");
 239         }
 240         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) {
 241             error('Could not get the course module for the forum instance.');
 242         }
 243         if (!$course = get_record('course', 'id', $forum->course)) {
 244             error('Incorrect course');
 245         }
 246
 247         require_login($course, false, $cm);
 248         $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 249
 250         if ( !(($post->userid == $USER->id && has_capability('mod/forum:deleteownpost', $modcontext))
 251                     || has_capability('mod/forum:deleteanypost', $modcontext)) ) {
 252             error("You can't delete this post!");
 253         }
 254
 255
 256         $replycount = forum_count_replies($post);
 257
 258         if (!empty($confirm)) {    // User has confirmed the delete
 259
 260             if ($post->totalscore) {
 261                 notice(get_string("couldnotdeleteratings", "forum"),
 262                         forum_go_back_to("discuss.php?d=$post->discussion"));
 263
 264             } else if ($replycount && !has_capability('mod/forum:deleteanypost', $modcontext)) {
 265                 error(get_string("couldnotdeletereplies", "forum"),
 266                         forum_go_back_to("discuss.php?d=$post->discussion"));
 267
 268             } else {
 269                 if (! $post->parent) {  // post is a discussion topic as well, so delete discussion
 270                     if ($forum->type == 'single') {
 271                         notice("Sorry, but you are not allowed to delete that discussion!",
 272                                 forum_go_back_to("discuss.php?d=$post->discussion"));
 273                     }
 274                     forum_delete_discussion($discussion);
 275
 276                     add_to_log($discussion->course, "forum", "delete discussion",
 277                                "view.php?id=$cm->id", "$forum->id", $cm->id);
 278
 279                     redirect("view.php?f=$discussion->forum");
 280
 281                 } else if (forum_delete_post($post, has_capability('mod/forum:deleteanypost', $modcontext))) {
 282
 283                     if ($forum->type == 'single') {
 284                         // Single discussion forums are an exception. We show
 285                         // the forum itself since it only has one discussion
 286                         // thread.
 287                         $discussionurl = "view.php?f=$forum->id";
 288                     } else {
 289                         $discussionurl = "discuss.php?d=$post->discussion";
 290                     }
 291
 292                     add_to_log($discussion->course, "forum", "delete post", $discussionurl, "$post->id", $cm->id);
 293
 294                     redirect(forum_go_back_to($discussionurl));
 295                 } else {
 296                     error("An error occurred while deleting record $post->id");
 297                 }
 298             }
 299
 300
 301         } else { // User just asked to delete something
 302
 303             forum_set_return();
 304
 305             if ($replycount) {
 306                 if (!has_capability('mod/forum:deleteanypost', $modcontext)) {
 307                     error(get_string("couldnotdeletereplies", "forum"),
 308                           forum_go_back_to("discuss.php?d=$post->discussion"));
 309                 }
 310                 print_header();
 311                 notice_yesno(get_string("deletesureplural", "forum", $replycount+1),
 312                              "post.php?delete=$delete&amp;confirm=$delete",
 313                              $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 314
 315                 forum_print_post($post, $course->id, $ownpost=false, $reply=false, $link=false);
 316                 if (empty($post->edit)) {
 317                     if (forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) {
 318                         $user_read_array = forum_tp_get_discussion_read_records($USER->id, $discussion->id);
 319                     } else {
 320                         $user_read_array = array();
 321                     }
 322                     forum_print_posts_nested($post->id, $course->id, false, false, $user_read_array, $forum->id);
 323                 }
 324             } else {
 325                 print_header();
 326                 notice_yesno(get_string("deletesure", "forum", $replycount),
 327                              "post.php?delete=$delete&amp;confirm=$delete",
 328                              $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 329                 forum_print_post($post, $forum->course, $ownpost=false, $reply=false, $link=false);
 330             }
 331
 332         }
 333         print_footer($course);
 334         die;
 335
 336
 337     } else if (!empty($prune)) {  // Pruning
 338
 339         if (!$post = forum_get_post_full($prune)) {
 340             error("Post ID was incorrect");
 341         }
 342         if (!$discussion = get_record("forum_discussions", "id", $post->discussion)) {
 343             error("This post is not part of a discussion!");
 344         }
 345         if (!$forum = get_record("forum", "id", $discussion->forum)) {
 346             error("The forum number was incorrect ($discussion->forum)");
 347         }
 348         if ($forum->type == 'single') {
 349             error('Discussions from this forum cannot be split');
 350         }
 351         if (!$post->parent) {
 352             error('This is already the first post in the discussion');
 353         }
 354         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) { // For the logs
 355             error('Could not get the course module for the forum instance.');
 356         } else {
 357             $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 358         }
 359         if (!has_capability('mod/forum:splitdiscussions', $modcontext)) {
 360             error("You can't split discussions!");
 361         }
 362
 363         if (!empty($name)) {    // User has confirmed the prune
 364
 365             $newdiscussion = new object();
 366             $newdiscussion->course       = $discussion->course;
 367             $newdiscussion->forum        = $discussion->forum;
 368             $newdiscussion->name         = $name;
 369             $newdiscussion->firstpost    = $post->id;
 370             $newdiscussion->userid       = $discussion->userid;
 371             $newdiscussion->groupid      = $discussion->groupid;
 372             $newdiscussion->assessed     = $discussion->assessed;
 373             $newdiscussion->usermodified = $post->userid;
 374             $newdiscussion->timestart    = $discussion->timestart;
 375             $newdiscussion->timeend      = $discussion->timeend;
 376
 377             if (!$newid = insert_record('forum_discussions', $newdiscussion)) {
 378                 error('Could not create new discussion');
 379             }
 380
 381             $newpost = new object();
 382             $newpost->id      = $post->id;
 383             $newpost->parent  = 0;
 384             $newpost->subject = $name;
 385
 386             if (!update_record("forum_posts", $newpost)) {
 387                 error('Could not update the original post');
 388             }
 389
 390             forum_change_discussionid($post->id, $newid);
 391
 392             // update last post in each discussion
 393             forum_discussion_update_last_post($discussion->id);
 394             forum_discussion_update_last_post($newid);
 395
 396             add_to_log($discussion->course, "forum", "prune post",
 397                            "discuss.php?d=$newid", "$post->id", $cm->id);
 398
 399             redirect(forum_go_back_to("discuss.php?d=$newid"));
 400
 401         } else { // User just asked to prune something
 402
 403             $course = get_record('course', 'id', $forum->course);
 404             $strforums = get_string("modulenameplural", "forum");
 405
 406             $crumbs[] = array('name' => $strforums, 'link' => "../forum/index.php?id=$course->id", 'type' => 'activity');
 407             $crumbs[] = array('name' => $forum->name, 'link' => "view.php?f=$forum->id", 'type' => 'activityinstance');
 408             $crumbs[] = array('name' => format_string($post->subject, true), 'link' => "discuss.php?d=$discussion->id", 'type' => 'title');
 409             $crumbs[] = array('name' => get_string("prune", "forum"), 'link' => '', 'type' => 'title');
 410
 411             $navigation = build_navigation($crumbs);
 412
 413             print_header_simple(format_string($discussion->name).": ".format_string($post->subject), "", $navigation, '', "", true, "", navmenu($course, $cm));
 414
 415             print_heading(get_string('pruneheading', 'forum'));
 416             echo '<center>';
 417
 418             include('prune.html');
 419
 420             forum_print_post($post, $forum->course, $ownpost=false, $reply=false, $link=false);
 421             echo '</center>';
 422         }
 423         print_footer($course);
 424         die;
 425     } else {
 426         error("No operation specified");
 427
 428     }
 429
 430     if (!isset($coursecontext)) {
 431         // Has not yet been set by post.php.
 432         $coursecontext = get_context_instance(CONTEXT_COURSE, $forum->course);
 433     }
 434
 435     if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
 436         error('Could not get the course module for the forum instance.');
 437     }
 438     $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 439
 440     $mform_post = new mod_forum_post_form('post.php', array('course'=>$course, 'coursecontext'=>$coursecontext, 'modcontext'=>$modcontext, 'forum'=>$forum, 'post'=>$post));
 441
 442     if ($fromform = $mform_post->get_data()) {
 443
 444
 445         require_login($course, false, $cm);
 446
 447         if (empty($SESSION->fromurl)) {
 448             $errordestination = "$CFG->wwwroot/mod/forum/view.php?f=$forum->id";
 449         } else {
 450             $errordestination = $SESSION->fromurl;
 451         }
 452
 453         // TODO add attachment processing
 454         //$fromform->attachment = isset($_FILES['attachment']) ? $_FILES['attachment'] : NULL;
 455
 456         trusttext_after_edit($fromform->message, $modcontext);
 457
 458         if ($fromform->edit) {           // Updating a post
 459             $fromform->id = $fromform->edit;
 460             $message = '';
 461
 462             //fix for bug #4314
 463             if (!$realpost = get_record('forum_posts', 'id', $fromform->id)) {
 464                 $realpost = new object;
 465                 $realpost->userid = -1;
 466             }
 467
 468
 469             // if user has edit any post capability
 470             // or has either startnewdiscussion or reply capability and is editting own post
 471             // then he can proceed
 472             // MDL-7066
 473             if ( !(($realpost->userid == $USER->id && (has_capability('mod/forum:replypost', $modcontext)
 474                                 || has_capability('mod/forum:startdiscussion', $modcontext))) ||
 475                                 has_capability('mod/forum:editanypost', $modcontext)) ) {
 476                 error("You can not update this post");
 477             }
 478
 479             if ($forum->type == 'news' && !$fromform->parent) {
 480                 $updatediscussion = new object;
 481                 $updatediscussion->id = $fromform->discussion;
 482                 $updatediscussion->timestart = $fromform->timestart;
 483                 $updatediscussion->timeend = $fromform->timeend;
 484                 if (!update_record('forum_discussions', $updatediscussion)) {
 485                     error(get_string("couldnotupdate", "forum"), $errordestination);
 486                 }
 487             }
 488
 489             $updatepost=$fromform; //realpost
 490             $updatepost->forum=$forum->id;
 491             if (!forum_update_post($updatepost, $message)) {
 492                 error(get_string("couldnotupdate", "forum"), $errordestination);
 493             }
 494
 495             $timemessage = 2;
 496             if (!empty($message)) { // if we're printing stuff about the file upload
 497                 $timemessage = 4;
 498             }
 499             $message .= '<br />'.get_string("postupdated", "forum");
 500
 501             if ($subscribemessage = forum_post_subscription($fromform)) {
 502                 $timemessage = 4;
 503             }
 504             if ($forum->type == 'single') {
 505                 // Single discussion forums are an exception. We show
 506                 // the forum itself since it only has one discussion
 507                 // thread.
 508                 $discussionurl = "view.php?f=$forum->id";
 509             } else {
 510                 $discussionurl = "discuss.php?d=$discussion->id#p$fromform->id";
 511             }
 512             add_to_log($course->id, "forum", "update post",
 513                     "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 514
 515             redirect(forum_go_back_to("$discussionurl"), $message.$subscribemessage, $timemessage);
 516
 517             exit;
 518
 519
 520         } else if ($fromform->discussion) { // Adding a new post to an existing discussion
 521             $message = '';
 522             $addpost=$fromform;
 523             $addpost->forum=$forum->id;
 524             if ($fromform->id = forum_add_new_post($addpost, $message)) {
 525
 526                 $timemessage = 2;
 527                 if (!empty($message)) { // if we're printing stuff about the file upload
 528                     $timemessage = 4;
 529                 }
 530
 531                 if ($subscribemessage = forum_post_subscription($fromform)) {
 532                     $timemessage = 4;
 533                 }
 534
 535                 if (!empty($fromform->mailnow)) {
 536                     $message .= get_string("postmailnow", "forum");
 537                     $timemessage = 4;
 538                 } else {
 539                     $message .= '<br />'.get_string("postadded", "forum", format_time($CFG->maxeditingtime));
 540                 }
 541
 542                 if ($forum->type == 'single') {
 543                     // Single discussion forums are an exception. We show
 544                     // the forum itself since it only has one discussion
 545                     // thread.
 546                     $discussionurl = "view.php?f=$forum->id";
 547                 } else {
 548                     $discussionurl = "discuss.php?d=$discussion->id";
 549                 }
 550                 add_to_log($course->id, "forum", "add post",
 551                           "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 552
 553                 redirect(forum_go_back_to("$discussionurl#p$fromform->id"), $message.$subscribemessage, $timemessage);
 554
 555             } else {
 556                 error(get_string("couldnotadd", "forum"), $errordestination);
 557             }
 558             exit;
 559
 560         } else {                     // Adding a new discussion
 561             $fromform->mailnow = empty($fromform->mailnow) ? 0 : 1;
 562             $discussion = $fromform;
 563             $discussion->name  = $fromform->subject;
 564             $discussion->intro = $fromform->message;
 565             $newstopic = false;
 566
 567             if ($forum->type == 'news' && !$fromform->parent) {
 568                 $newstopic = true;
 569             }
 570             $discussion->timestart = $fromform->timestart;
 571             $discussion->timeend = $fromform->timeend;
 572
 573             $message = '';
 574             if ($discussion->id = forum_add_discussion($discussion, $message)) {
 575
 576                 add_to_log($course->id, "forum", "add discussion",
 577                         "discuss.php?d=$discussion->id", "$discussion->id", $cm->id);
 578
 579                 $timemessage = 2;
 580                 if (!empty($message)) { // if we're printing stuff about the file upload
 581                     $timemessage = 4;
 582                 }
 583
 584                 if ($fromform->mailnow) {
 585                     $message .= get_string("postmailnow", "forum");
 586                     $timemessage = 4;
 587                 } else {
 588                     $message .= '<br />'.get_string("postadded", "forum", format_time($CFG->maxeditingtime));
 589                 }
 590
 591                 if ($subscribemessage = forum_post_subscription($discussion)) {
 592                     $timemessage = 4;
 593                 }
 594
 595                 redirect(forum_go_back_to("view.php?f=$fromform->forum"), $message.$subscribemessage, $timemessage);
 596
 597             } else {
 598                 error(get_string("couldnotadd", "forum"), $errordestination);
 599             }
 600
 601             exit;
 602         }
 603     }
 604
 605
 606
 607     // To get here they need to edit a post, and the $post
 608     // variable will be loaded with all the particulars,
 609     // so bring up the form.
 610
 611     // $course, $forum are defined.  $discussion is for edit and reply only.
 612
 613     $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id);
 614
 615     require_login($course->id, false, $cm);
 616
 617     $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 618
 619     if ($post->discussion) {
 620         if (! $toppost = get_record("forum_posts", "discussion", $post->discussion, "parent", 0)) {
 621             error("Could not find top parent of post $post->id");
 622         }
 623     } else {
 624         $toppost->subject = ($forum->type == "news") ? get_string("addanewtopic", "forum") :
 625                                                        get_string("addanewdiscussion", "forum");
 626     }
 627
 628     $strforums = get_string("modulenameplural", "forum");
 629
 630
 631     $crumbs[] = array('name' => $strforums, 'link' => "../forum/index.php?id=$course->id", 'type' => 'activity');
 632     $crumbs[] = array('name' => $forum->name, 'link' => "view.php?f=$forum->id", 'type' => 'activityinstance');
 633
 634
 635     if ($post->parent) {
 636         $crumbs[] = array('name' => format_string($toppost->subject, true), 'link' => "discuss.php?d=$discussion->id", 'type' => 'activityinstance');
 637         $crumbs[] = array('name' => get_string('editing', 'forum'), 'link' => '', 'type' => 'action');
 638     } else {
 639         $crumbs[] = array('name' => format_string($toppost->subject), 'link' => '', 'type' => 'action');
 640     }
 641
 642     if (empty($post->edit)) {
 643         $post->edit = '';
 644     }
 645
 646
 647     if (empty($discussion->name)) {
 648         if (empty($discussion)) {
 649             $discussion = new object;
 650         }
 651         $discussion->name = $forum->name;
 652     }
 653     if ($forum->type == 'single') {
 654         // There is only one discussion thread for this forum type. We should
 655         // not show the discussion name (same as forum name in this case) in
 656         // the breadcrumbs.
 657         $strdiscussionname = '';
 658         $navtail = '';
 659     } else {
 660         // Show the discussion name in the breadcrumbs.
 661         $strdiscussionname = format_string($discussion->name).':';
 662     }
 663
 664     $forcefocus = empty($reply) ? NULL : 'message';
 665
 666
 667     $navigation = build_navigation($crumbs);
 668
 669     print_header("$course->shortname: $strdiscussionname ".
 670                   format_string($toppost->subject), $course->fullname,
 671                   $navigation, $mform_post->focus($forcefocus), "", true, "", navmenu($course, $cm));
 672
 673
 674 // checkup
 675     if (!empty($parent) && !forum_user_can_see_post($forum, $discussion, $post)) {
 676         error("You cannot reply to this post");
 677     }
 678     if (empty($parent) && empty($edit) && !forum_user_can_post_discussion($forum)) {
 679         error("You cannot start a new discussion in this forum");
 680     }
 681
 682     if ($forum->type == 'qanda'
 683                 && !has_capability('mod/forum:viewqandawithoutposting', $modcontext)
 684                 && !empty($discussion->id)
 685                 && !forum_user_has_posted($forum->id, $discussion->id, $USER->id)) {
 686         notify(get_string('qandanotify','forum'));
 687     }
 688
 689     forum_check_throttling($forum);
 690
 691     if (!empty($parent)) {
 692         forum_print_post($parent, $course->id, $ownpost=false, $reply=false, $link=false);
 693         if (empty($post->edit)) {
 694             if (forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) {
 695                 $user_read_array = forum_tp_get_discussion_read_records($USER->id, $discussion->id);
 696             } else {
 697                 $user_read_array = array();
 698             }
 699             if ($forum->type != 'qanda' || forum_user_can_see_discussion($forum, $discussion, $modcontext)) {
 700                 forum_print_posts_threaded($parent->id, $course->id, 0, false, false, $user_read_array, $discussion->forum);
 701             }
 702         }
 703         $heading = get_string("yourreply", "forum");
 704     } else {
 705         $forum->intro = trim($forum->intro);
 706         if (!empty($forum->intro)) {
 707             print_box(format_text($forum->intro), 'generalbox', 'intro');
 708         }
 709         if ($forum->type == 'qanda') {
 710             $heading = get_string('yournewquestion', 'forum');
 711         } else {
 712             $heading = get_string('yournewtopic', 'forum');
 713         }
 714     }
 715
 716     if ($USER->id != $post->userid) {   // Not the original author, so add a message to the end
 717         $data->date = userdate($post->modified);
 718         if ($post->format == FORMAT_HTML) {
 719             $data->name = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$USER->id.'&course='.$post->course.'">'.
 720                            fullname($USER).'</a>';
 721             $post->message .= '<p>(<span class="edited">'.get_string('editedby', 'forum', $data).'</span>)</p>';
 722         } else {
 723             $data->name = fullname($USER);
 724             $post->message .= "\n\n(".get_string('editedby', 'forum', $data).')';
 725         }
 726     }
 727
 728     //load data into form
 729     $subscribe=(isset($post->forum)&&forum_is_subscribed($USER->id, $post->forum)) ||
 730                     (!empty($USER->autosubscribe));
 731
 732
 733     $mform_post->set_data(array(    'general'=>$heading,
 734                                         'subject'=>$post->subject,
 735                                         'message'=>$post->message,
 736                                         'subscribe'=>$subscribe?1:0,
 737                                         'mailnow'=>!empty($post->mailnow),
 738                                         'userid'=>$post->userid,
 739                                         'parent'=>$post->parent,
 740                                         'discussion'=>$post->discussion,
 741                                         'course'=>$course->id)+
 742
 743                                         $page_params+
 744
 745                                 (isset($post->format)?array(
 746                                         'format'=>$post->format):
 747                                     array())+
 748
 749                                 (isset($dicussion->timestart)?array(
 750                                         'timestart'=>$discussion->timestart):
 751                                     array())+
 752
 753                                 (isset($discussion->timeend)?array(
 754                                         'timeend'=>$discussion->timeend):
 755                                     array())+
 756
 757                                 (isset($post->groupid)?array(
 758                                         'groupid'=>$post->groupid):
 759                                     array())+
 760
 761                                 (isset($discussion->id)?
 762                                         array('discussion'=>$discussion->id):
 763                                         array()));
 764
 765
 766     $mform_post->display();
 767
 768
 769     print_footer($course);
 770
 771
 772 ?>