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     $groupid = optional_param('groupid', null, PARAM_INT);
  17
  18
  19     //these page_params will be passed as hidden variables later in the form.
  20     $page_params = array('reply'=>$reply, 'forum'=>$forum, 'edit'=>$edit);
  21
  22     $sitecontext = get_context_instance(CONTEXT_SYSTEM);
  23
  24     if (has_capability('moodle/legacy:guest', $sitecontext, NULL, false)) {
  25
  26         $wwwroot = $CFG->wwwroot.'/login/index.php';
  27         if (!empty($CFG->loginhttps)) {
  28             $wwwroot = str_replace('http:', 'https:', $wwwroot);
  29         }
  30
  31         if (!empty($forum)) {      // User is starting a new discussion in a forum
  32             if (! $forum = get_record('forum', 'id', $forum)) {
  33                 error('The forum number was incorrect');
  34             }
  35         } else if (!empty($reply)) {      // User is writing a new reply
  36             if (! $parent = forum_get_post_full($reply)) {
  37                 error('Parent post ID was incorrect');
  38             }
  39             if (! $discussion = get_record('forum_discussions', 'id', $parent->discussion)) {
  40                 error('This post is not part of a discussion!');
  41             }
  42             if (! $forum = get_record('forum', 'id', $discussion->forum)) {
  43                 error('The forum number was incorrect');
  44             }
  45         }
  46         if (! $course = get_record('course', 'id', $forum->course)) {
  47             error('The course number was incorrect');
  48         }
  49
  50         if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
  51             error('Could not get the course module for the forum instance.');
  52         } else {
  53             $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
  54         }
  55
  56         if (!get_referer()) {   // No referer - probably coming in via email  See MDL-9052
  57             require_login();
  58         }
  59
  60         $navigation = build_navigation('', $cm);
  61         print_header($course->shortname, $course->fullname, $navigation, '' , '', true, "", navmenu($course, $cm));
  62
  63         notice_yesno(get_string('noguestpost', 'forum').'<br /><br />'.get_string('liketologin'),
  64                      $wwwroot, get_referer(false));
  65         print_footer($course);
  66         exit;
  67     }
  68
  69     require_login(0, false);   // Script is useless unless they're logged in
  70
  71     if (!empty($forum)) {      // User is starting a new discussion in a forum
  72         if (! $forum = get_record("forum", "id", $forum)) {
  73             error("The forum number was incorrect ($forum)");
  74         }
  75         if (! $course = get_record("course", "id", $forum->course)) {
  76             error("The course number was incorrect ($forum->course)");
  77         }
  78         if (! $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
  79             error("Incorrect course module");
  80         }
  81
  82         $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
  83
  84         if (! forum_user_can_post_discussion($forum, $groupid, -1, $cm)) {
  85             if (has_capability('moodle/legacy:guest', $coursecontext, NULL, false)) {  // User is a guest here!
  86                 $SESSION->wantsurl = $FULLME;
  87                 $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
  88                 redirect($CFG->wwwroot.'/course/enrol.php?id='.$course->id, get_string('youneedtoenrol'));
  89             } else {
  90                 print_error('nopostforum', 'forum');
  91             }
  92         }
  93
  94         if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
  95             print_error("activityiscurrentlyhidden");
  96         }
  97
  98         if (isset($_SERVER["HTTP_REFERER"])) {
  99             $SESSION->fromurl = $_SERVER["HTTP_REFERER"];
 100         } else {
 101             $SESSION->fromurl = '';
 102         }
 103
 104
 105         // Load up the $post variable.
 106
 107         $post = new object();
 108         $post->course     = $course->id;
 109         $post->forum      = $forum->id;
 110         $post->discussion = 0;           // ie discussion # not defined yet
 111         $post->parent     = 0;
 112         $post->subject    = '';
 113         $post->userid     = $USER->id;
 114         $post->message    = '';
 115
 116         if (isset($groupid)) {
 117             $post->groupid = $groupid;
 118         } else {
 119             $post->groupid = groups_get_activity_group($cm);
 120         }
 121
 122         forum_set_return();
 123
 124     } else if (!empty($reply)) {      // User is writing a new reply
 125
 126         if (! $parent = forum_get_post_full($reply)) {
 127             error("Parent post ID was incorrect");
 128         }
 129         if (! $discussion = get_record("forum_discussions", "id", $parent->discussion)) {
 130             error("This post is not part of a discussion!");
 131         }
 132         if (! $forum = get_record("forum", "id", $discussion->forum)) {
 133             error("The forum number was incorrect ($discussion->forum)");
 134         }
 135         if (! $course = get_record("course", "id", $discussion->course)) {
 136             error("The course number was incorrect ($discussion->course)");
 137         }
 138         if (! $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 139             error("Incorrect cm");
 140         }
 141
 142         $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
 143         $modcontext    = get_context_instance(CONTEXT_MODULE, $cm->id);
 144
 145         if (! forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext)) {
 146             if (has_capability('moodle/legacy:guest', $coursecontext, NULL, false)) {  // User is a guest here!
 147                 $SESSION->wantsurl = $FULLME;
 148                 $SESSION->enrolcancel = $_SERVER['HTTP_REFERER'];
 149                 redirect($CFG->wwwroot.'/course/enrol.php?id='.$course->id, get_string('youneedtoenrol'));
 150             } else {
 151                 print_error('nopostforum', 'forum');
 152             }
 153         }
 154
 155         // Make sure user can post here
 156         if (groupmode($course, $cm) == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $modcontext)) {
 157             if ($discussion->groupid == -1) {
 158                 print_error('nopostforum', 'forum');
 159             } else {
 160                 if (!groups_is_member($discussion->groupid)) {
 161                     print_error('nopostforum', 'forum');
 162                 }
 163             }
 164         }
 165
 166         if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
 167             print_error("activityiscurrentlyhidden");
 168         }
 169
 170         // Load up the $post variable.
 171
 172         $post = new object();
 173         $post->course      = $course->id;
 174         $post->forum       = $forum->id;
 175         $post->discussion  = $parent->discussion;
 176         $post->parent      = $parent->id;
 177         $post->subject     = $parent->subject;
 178         $post->userid      = $USER->id;
 179         $post->message     = '';
 180
 181         $post->groupid = ($discussion->groupid == -1) ? 0 : $discussion->groupid;
 182
 183         $strre = get_string('re', 'forum');
 184         if (!(substr($post->subject, 0, strlen($strre)) == $strre)) {
 185             $post->subject = $strre.' '.$post->subject;
 186         }
 187
 188         unset($SESSION->fromdiscussion);
 189
 190     } else if (!empty($edit)) {  // User is editing their own post
 191
 192         if (! $post = forum_get_post_full($edit)) {
 193             error("Post ID was incorrect");
 194         }
 195         if ($post->parent) {
 196             if (! $parent = forum_get_post_full($post->parent)) {
 197                 error("Parent post ID was incorrect ($post->parent)");
 198             }
 199         }
 200
 201         if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
 202             error("This post is not part of a discussion! ($edit)");
 203         }
 204         if (! $forum = get_record("forum", "id", $discussion->forum)) {
 205             error("The forum number was incorrect ($discussion->forum)");
 206         }
 207         if (! $course = get_record("course", "id", $discussion->course)) {
 208             error("The course number was incorrect ($discussion->course)");
 209         }
 210         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
 211             error('Could not get the course module for the forum instance.');
 212         } else {
 213             $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 214         }
 215         if (!($forum->type == 'news' && !$post->parent && $discussion->timestart > time())) {
 216             if (((time() - $post->created) > $CFG->maxeditingtime) and
 217                         !has_capability('mod/forum:editanypost', $modcontext)) {
 218                 error( get_string("maxtimehaspassed", "forum", format_time($CFG->maxeditingtime)) );
 219             }
 220         }
 221         if (($post->userid <> $USER->id) and
 222                     !has_capability('mod/forum:editanypost', $modcontext)) {
 223             error("You can't edit other people's posts!");
 224         }
 225
 226
 227         // Load up the $post variable.
 228         $post->edit   = $edit;
 229         $post->course = $course->id;
 230         $post->forum  = $forum->id;
 231         $post->groupid = ($discussion->groupid == -1) ? 0 : $discussion->groupid;
 232
 233         trusttext_prepare_edit($post->message, $post->format, can_use_html_editor(), $modcontext);
 234
 235         unset($SESSION->fromdiscussion);
 236
 237
 238     }else if (!empty($delete)) {  // User is deleting a post
 239
 240         if (! $post = forum_get_post_full($delete)) {
 241             error("Post ID was incorrect");
 242         }
 243         if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
 244             error("This post is not part of a discussion!");
 245         }
 246         if (! $forum = get_record("forum", "id", $discussion->forum)) {
 247             error("The forum number was incorrect ($discussion->forum)");
 248         }
 249         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) {
 250             error('Could not get the course module for the forum instance.');
 251         }
 252         if (!$course = get_record('course', 'id', $forum->course)) {
 253             error('Incorrect course');
 254         }
 255
 256         require_login($course, false, $cm);
 257         $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 258
 259         if ( !(($post->userid == $USER->id && has_capability('mod/forum:deleteownpost', $modcontext))
 260                     || has_capability('mod/forum:deleteanypost', $modcontext)) ) {
 261             error("You can't delete this post!");
 262         }
 263
 264
 265         $replycount = forum_count_replies($post);
 266
 267         if (!empty($confirm)) {    // User has confirmed the delete
 268
 269             if ($post->totalscore) {
 270                 notice(get_string("couldnotdeleteratings", "forum"),
 271                         forum_go_back_to("discuss.php?d=$post->discussion"));
 272
 273             } else if ($replycount && !has_capability('mod/forum:deleteanypost', $modcontext)) {
 274                 print_error("couldnotdeletereplies", "forum",
 275                         forum_go_back_to("discuss.php?d=$post->discussion"));
 276
 277             } else {
 278                 if (! $post->parent) {  // post is a discussion topic as well, so delete discussion
 279                     if ($forum->type == 'single') {
 280                         notice("Sorry, but you are not allowed to delete that discussion!",
 281                                 forum_go_back_to("discuss.php?d=$post->discussion"));
 282                     }
 283                     forum_delete_discussion($discussion);
 284
 285                     add_to_log($discussion->course, "forum", "delete discussion",
 286                                "view.php?id=$cm->id", "$forum->id", $cm->id);
 287
 288                     redirect("view.php?f=$discussion->forum");
 289
 290                 } else if (forum_delete_post($post, has_capability('mod/forum:deleteanypost', $modcontext))) {
 291
 292                     if ($forum->type == 'single') {
 293                         // Single discussion forums are an exception. We show
 294                         // the forum itself since it only has one discussion
 295                         // thread.
 296                         $discussionurl = "view.php?f=$forum->id";
 297                     } else {
 298                         $discussionurl = "discuss.php?d=$post->discussion";
 299                     }
 300
 301                     add_to_log($discussion->course, "forum", "delete post", $discussionurl, "$post->id", $cm->id);
 302
 303                     redirect(forum_go_back_to($discussionurl));
 304                 } else {
 305                     error("An error occurred while deleting record $post->id");
 306                 }
 307             }
 308
 309
 310         } else { // User just asked to delete something
 311
 312             forum_set_return();
 313
 314             if ($replycount) {
 315                 if (!has_capability('mod/forum:deleteanypost', $modcontext)) {
 316                     print_error("couldnotdeletereplies", "forum",
 317                           forum_go_back_to("discuss.php?d=$post->discussion"));
 318                 }
 319                 print_header();
 320                 notice_yesno(get_string("deletesureplural", "forum", $replycount+1),
 321                              "post.php?delete=$delete&amp;confirm=$delete",
 322                              $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 323
 324                 forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 325
 326                 if (empty($post->edit)) {
 327                     $forumtracked = forum_tp_is_tracked($forum);
 328                     $posts = forum_get_all_discussion_posts($discussion->id, "created ASC", $forumtracked);
 329                     forum_print_posts_nested($course, $cm, $forum, $discussion, $post, false, false, $forumtracked, $posts);
 330                 }
 331             } else {
 332                 print_header();
 333                 notice_yesno(get_string("deletesure", "forum", $replycount),
 334                              "post.php?delete=$delete&amp;confirm=$delete",
 335                              $CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id);
 336                 forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 337             }
 338
 339         }
 340         print_footer($course);
 341         die;
 342
 343
 344     } else if (!empty($prune)) {  // Pruning
 345
 346         if (!$post = forum_get_post_full($prune)) {
 347             error("Post ID was incorrect");
 348         }
 349         if (!$discussion = get_record("forum_discussions", "id", $post->discussion)) {
 350             error("This post is not part of a discussion!");
 351         }
 352         if (!$forum = get_record("forum", "id", $discussion->forum)) {
 353             error("The forum number was incorrect ($discussion->forum)");
 354         }
 355         if ($forum->type == 'single') {
 356             error('Discussions from this forum cannot be split');
 357         }
 358         if (!$post->parent) {
 359             error('This is already the first post in the discussion');
 360         }
 361         if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) { // For the logs
 362             error('Could not get the course module for the forum instance.');
 363         } else {
 364             $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 365         }
 366         if (!has_capability('mod/forum:splitdiscussions', $modcontext)) {
 367             error("You can't split discussions!");
 368         }
 369
 370         if (!empty($name)) {    // User has confirmed the prune
 371
 372             $newdiscussion = new object();
 373             $newdiscussion->course       = $discussion->course;
 374             $newdiscussion->forum        = $discussion->forum;
 375             $newdiscussion->name         = $name;
 376             $newdiscussion->firstpost    = $post->id;
 377             $newdiscussion->userid       = $discussion->userid;
 378             $newdiscussion->groupid      = $discussion->groupid;
 379             $newdiscussion->assessed     = $discussion->assessed;
 380             $newdiscussion->usermodified = $post->userid;
 381             $newdiscussion->timestart    = $discussion->timestart;
 382             $newdiscussion->timeend      = $discussion->timeend;
 383
 384             if (!$newid = insert_record('forum_discussions', $newdiscussion)) {
 385                 error('Could not create new discussion');
 386             }
 387
 388             $newpost = new object();
 389             $newpost->id      = $post->id;
 390             $newpost->parent  = 0;
 391             $newpost->subject = $name;
 392
 393             if (!update_record("forum_posts", $newpost)) {
 394                 error('Could not update the original post');
 395             }
 396
 397             forum_change_discussionid($post->id, $newid);
 398
 399             // update last post in each discussion
 400             forum_discussion_update_last_post($discussion->id);
 401             forum_discussion_update_last_post($newid);
 402
 403             add_to_log($discussion->course, "forum", "prune post",
 404                            "discuss.php?d=$newid", "$post->id", $cm->id);
 405
 406             redirect(forum_go_back_to("discuss.php?d=$newid"));
 407
 408         } else { // User just asked to prune something
 409
 410             $course = get_record('course', 'id', $forum->course);
 411
 412             $navlinks = array();
 413             $navlinks[] = array('name' => format_string($post->subject, true), 'link' => "discuss.php?d=$discussion->id", 'type' => 'title');
 414             $navlinks[] = array('name' => get_string("prune", "forum"), 'link' => '', 'type' => 'title');
 415             $navigation = build_navigation($navlinks, $cm);
 416             print_header_simple(format_string($discussion->name).": ".format_string($post->subject), "", $navigation, '', "", true, "", navmenu($course, $cm));
 417
 418             print_heading(get_string('pruneheading', 'forum'));
 419             echo '<center>';
 420
 421             include('prune.html');
 422
 423             forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
 424             echo '</center>';
 425         }
 426         print_footer($course);
 427         die;
 428     } else {
 429         error("No operation specified");
 430
 431     }
 432
 433     if (!isset($coursecontext)) {
 434         // Has not yet been set by post.php.
 435         $coursecontext = get_context_instance(CONTEXT_COURSE, $forum->course);
 436     }
 437
 438     if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) { // For the logs
 439         error('Could not get the course module for the forum instance.');
 440     }
 441     $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 442
 443     $mform_post = new mod_forum_post_form('post.php', array('course'=>$course, 'cm'=>$cm, 'coursecontext'=>$coursecontext, 'modcontext'=>$modcontext, 'forum'=>$forum, 'post'=>$post));
 444
 445     if ($fromform = $mform_post->get_data()) {
 446
 447
 448         require_login($course, false, $cm);
 449
 450         if (empty($SESSION->fromurl)) {
 451             $errordestination = "$CFG->wwwroot/mod/forum/view.php?f=$forum->id";
 452         } else {
 453             $errordestination = $SESSION->fromurl;
 454         }
 455
 456         // TODO add attachment processing
 457         //$fromform->attachment = isset($_FILES['attachment']) ? $_FILES['attachment'] : NULL;
 458
 459         trusttext_after_edit($fromform->message, $modcontext);
 460
 461         if ($fromform->edit) {           // Updating a post
 462             unset($fromform->groupid);
 463             $fromform->id = $fromform->edit;
 464             $message = '';
 465
 466             //fix for bug #4314
 467             if (!$realpost = get_record('forum_posts', 'id', $fromform->id)) {
 468                 $realpost = new object;
 469                 $realpost->userid = -1;
 470             }
 471
 472
 473             // if user has edit any post capability
 474             // or has either startnewdiscussion or reply capability and is editting own post
 475             // then he can proceed
 476             // MDL-7066
 477             if ( !(($realpost->userid == $USER->id && (has_capability('mod/forum:replypost', $modcontext)
 478                                 || has_capability('mod/forum:startdiscussion', $modcontext))) ||
 479                                 has_capability('mod/forum:editanypost', $modcontext)) ) {
 480                 error("You can not update this post");
 481             }
 482
 483             $updatepost = $fromform; //realpost
 484             $updatepost->forum = $forum->id;
 485             if (!forum_update_post($updatepost, $message)) {
 486                 print_error("couldnotupdate", "forum", $errordestination);
 487             }
 488
 489             // MDL-11818
 490             if (($forum->type == 'single') && ($updatepost->parent == '0')){ // updating first post of single discussion type -> updating forum intro
 491                 $forum->intro = $updatepost->message;
 492                 $forum->timemodified = time();
 493                 if (!update_record("forum", $forum)) {
 494                     print_error("couldnotupdate", "forum", $errordestination);
 495                 }
 496             }
 497
 498             $timemessage = 2;
 499             if (!empty($message)) { // if we're printing stuff about the file upload
 500                 $timemessage = 4;
 501             }
 502             $message .= '<br />'.get_string("postupdated", "forum");
 503
 504             if ($subscribemessage = forum_post_subscription($fromform)) {
 505                 $timemessage = 4;
 506             }
 507             if ($forum->type == 'single') {
 508                 // Single discussion forums are an exception. We show
 509                 // the forum itself since it only has one discussion
 510                 // thread.
 511                 $discussionurl = "view.php?f=$forum->id";
 512             } else {
 513                 $discussionurl = "discuss.php?d=$discussion->id#p$fromform->id";
 514             }
 515             add_to_log($course->id, "forum", "update post",
 516                     "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 517
 518             redirect(forum_go_back_to("$discussionurl"), $message.$subscribemessage, $timemessage);
 519
 520             exit;
 521
 522
 523         } else if ($fromform->discussion) { // Adding a new post to an existing discussion
 524             unset($fromform->groupid);
 525             $message = '';
 526             $addpost=$fromform;
 527             $addpost->forum=$forum->id;
 528             if ($fromform->id = forum_add_new_post($addpost, $message)) {
 529
 530                 $timemessage = 2;
 531                 if (!empty($message)) { // if we're printing stuff about the file upload
 532                     $timemessage = 4;
 533                 }
 534
 535                 if ($subscribemessage = forum_post_subscription($fromform)) {
 536                     $timemessage = 4;
 537                 }
 538
 539                 if (!empty($fromform->mailnow)) {
 540                     $message .= get_string("postmailnow", "forum");
 541                     $timemessage = 4;
 542                 } else {
 543                     $message .= '<p>'.get_string("postaddedsuccess", "forum") . '</p>';
 544                     $message .= '<p>'.get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
 545                 }
 546
 547                 if ($forum->type == 'single') {
 548                     // Single discussion forums are an exception. We show
 549                     // the forum itself since it only has one discussion
 550                     // thread.
 551                     $discussionurl = "view.php?f=$forum->id";
 552                 } else {
 553                     $discussionurl = "discuss.php?d=$discussion->id";
 554                 }
 555                 add_to_log($course->id, "forum", "add post",
 556                           "$discussionurl&amp;parent=$fromform->id", "$fromform->id", $cm->id);
 557
 558                 redirect(forum_go_back_to("$discussionurl#p$fromform->id"), $message.$subscribemessage, $timemessage);
 559
 560             } else {
 561                 print_error("couldnotadd", "forum", $errordestination);
 562             }
 563             exit;
 564
 565         } else {                     // Adding a new discussion
 566             if (!forum_user_can_post_discussion($forum, $fromform->groupid, -1, $cm, $modcontext)) {
 567                 error('Can not add discussion, sorry.');
 568             }
 569             if (empty($fromform->groupid)) {
 570                 $fromform->groupid = -1;
 571             }
 572
 573             $fromform->mailnow = empty($fromform->mailnow) ? 0 : 1;
 574             $discussion = $fromform;
 575             $discussion->name  = $fromform->subject;
 576             $discussion->intro = $fromform->message;
 577             $newstopic = false;
 578
 579             if ($forum->type == 'news' && !$fromform->parent) {
 580                 $newstopic = true;
 581             }
 582             $discussion->timestart = $fromform->timestart;
 583             $discussion->timeend = $fromform->timeend;
 584
 585             $message = '';
 586             if ($discussion->id = forum_add_discussion($discussion, $message)) {
 587
 588                 add_to_log($course->id, "forum", "add discussion",
 589                         "discuss.php?d=$discussion->id", "$discussion->id", $cm->id);
 590
 591                 $timemessage = 2;
 592                 if (!empty($message)) { // if we're printing stuff about the file upload
 593                     $timemessage = 4;
 594                 }
 595
 596                 if ($fromform->mailnow) {
 597                     $message .= get_string("postmailnow", "forum");
 598                     $timemessage = 4;
 599                 } else {
 600                     $message .= '<p>'.get_string("postaddedsuccess", "forum") . '</p>';
 601                     $message .= '<p>'.get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
 602                 }
 603
 604                 if ($subscribemessage = forum_post_subscription($discussion)) {
 605                     $timemessage = 4;
 606                 }
 607
 608                 redirect(forum_go_back_to("view.php?f=$fromform->forum"), $message.$subscribemessage, $timemessage);
 609
 610             } else {
 611                 print_error("couldnotadd", "forum", $errordestination);
 612             }
 613
 614             exit;
 615         }
 616     }
 617
 618
 619
 620     // To get here they need to edit a post, and the $post
 621     // variable will be loaded with all the particulars,
 622     // so bring up the form.
 623
 624     // $course, $forum are defined.  $discussion is for edit and reply only.
 625
 626     $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id);
 627
 628     require_login($course->id, false, $cm);
 629
 630     $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
 631
 632     if ($post->discussion) {
 633         if (! $toppost = get_record("forum_posts", "discussion", $post->discussion, "parent", 0)) {
 634             error("Could not find top parent of post $post->id");
 635         }
 636     } else {
 637         $toppost->subject = ($forum->type == "news") ? get_string("addanewtopic", "forum") :
 638                                                        get_string("addanewdiscussion", "forum");
 639     }
 640
 641     if (empty($post->edit)) {
 642         $post->edit = '';
 643     }
 644
 645     if (empty($discussion->name)) {
 646         if (empty($discussion)) {
 647             $discussion = new object;
 648         }
 649         $discussion->name = $forum->name;
 650     }
 651     if ($forum->type == 'single') {
 652         // There is only one discussion thread for this forum type. We should
 653         // not show the discussion name (same as forum name in this case) in
 654         // the breadcrumbs.
 655         $strdiscussionname = '';
 656     } else {
 657         // Show the discussion name in the breadcrumbs.
 658         $strdiscussionname = format_string($discussion->name).':';
 659     }
 660
 661     $forcefocus = empty($reply) ? NULL : 'message';
 662
 663     $navlinks = array();
 664     if ($post->parent) {
 665         $navlinks[] = array('name' => format_string($toppost->subject, true), 'link' => "discuss.php?d=$discussion->id", 'type' => 'title');
 666         $navlinks[] = array('name' => get_string('editing', 'forum'), 'link' => '', 'type' => 'title');
 667     } else {
 668         $navlinks[] = array('name' => format_string($toppost->subject), 'link' => '', 'type' => 'title');
 669     }
 670     $navigation = build_navigation($navlinks, $cm);
 671
 672     print_header("$course->shortname: $strdiscussionname ".
 673                   format_string($toppost->subject), $course->fullname,
 674                   $navigation, $mform_post->focus($forcefocus), "", true, "", navmenu($course, $cm));
 675
 676 // checkup
 677     if (!empty($parent) && !forum_user_can_see_post($forum, $discussion, $post, null, $cm)) {
 678         error("You cannot reply to this post");
 679     }
 680     if (empty($parent) && empty($edit) && !forum_user_can_post_discussion($forum, $groupid, -1, $cm, $modcontext)) {
 681         error("You cannot start a new discussion in this forum");
 682     }
 683
 684     if ($forum->type == 'qanda'
 685                 && !has_capability('mod/forum:viewqandawithoutposting', $modcontext)
 686                 && !empty($discussion->id)
 687                 && !forum_user_has_posted($forum->id, $discussion->id, $USER->id)) {
 688         notify(get_string('qandanotify','forum'));
 689     }
 690
 691     forum_check_throttling($forum, $cm);
 692
 693     if (!empty($parent)) {
 694         if (! $discussion = get_record('forum_discussions', 'id', $parent->discussion)) {
 695             error('This post is not part of a discussion!');
 696         }
 697
 698         forum_print_post($parent, $discussion, $forum, $cm, $course, false, false, false);
 699         if (empty($post->edit)) {
 700             if ($forum->type != 'qanda' || forum_user_can_see_discussion($forum, $discussion, $modcontext)) {
 701                 $forumtracked = forum_tp_is_tracked($forum);
 702                 $posts = forum_get_all_discussion_posts($discussion->id, "created ASC", $forumtracked);
 703                 forum_print_posts_threaded($course, $cm, $forum, $discussion, $parent, 0, false, false, $forumtracked, $posts);
 704             }
 705         }
 706         $heading = get_string("yourreply", "forum");
 707     } else {
 708         $forum->intro = trim($forum->intro);
 709         if (!empty($forum->intro)) {
 710             print_box(format_text($forum->intro), 'generalbox', 'intro');
 711         }
 712         if ($forum->type == 'qanda') {
 713             $heading = get_string('yournewquestion', 'forum');
 714         } else {
 715             $heading = get_string('yournewtopic', 'forum');
 716         }
 717     }
 718
 719     if ($USER->id != $post->userid) {   // Not the original author, so add a message to the end
 720         $data->date = userdate($post->modified);
 721         if ($post->format == FORMAT_HTML) {
 722             $data->name = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$USER->id.'&course='.$post->course.'">'.
 723                            fullname($USER).'</a>';
 724             $post->message .= '<p>(<span class="edited">'.get_string('editedby', 'forum', $data).'</span>)</p>';
 725         } else {
 726             $data->name = fullname($USER);
 727             $post->message .= "\n\n(".get_string('editedby', 'forum', $data).')';
 728         }
 729     }
 730
 731     //load data into form
 732
 733     if (forum_is_subscribed($USER->id, $forum->id)) {
 734         $subscribe = true;
 735
 736     } else if (forum_user_has_posted($forum->id, 0, $USER->id)) {
 737         $subscribe = false;
 738
 739     } else {
 740         // user not posted yet - use subscription default specified in profile
 741         $subscribe = !empty($USER->autosubscribe);
 742     }
 743
 744     // HACK ALERT: this is very wrong, the defaults should be always initialized before calling $mform->get_data() !!!
 745     $mform_post->set_data(array(    'general'=>$heading,
 746                                         'subject'=>$post->subject,
 747                                         'message'=>$post->message,
 748                                         'subscribe'=>$subscribe?1:0,
 749                                         'mailnow'=>!empty($post->mailnow),
 750                                         'userid'=>$post->userid,
 751                                         'parent'=>$post->parent,
 752                                         'discussion'=>$post->discussion,
 753                                         'course'=>$course->id)+
 754
 755                                         $page_params+
 756
 757                                 (isset($post->format)?array(
 758                                         'format'=>$post->format):
 759                                     array())+
 760
 761                                 (isset($discussion->timestart)?array(
 762                                         'timestart'=>$discussion->timestart):
 763                                     array())+
 764
 765                                 (isset($discussion->timeend)?array(
 766                                         'timeend'=>$discussion->timeend):
 767                                     array())+
 768
 769                                 (isset($post->groupid)?array(
 770                                         'groupid'=>$post->groupid):
 771                                     array())+
 772
 773                                 (isset($discussion->id)?
 774                                         array('discussion'=>$discussion->id):
 775                                         array()));
 776
 777
 778     $mform_post->display();
 779
 780
 781     print_footer($course);
 782
 783
 784 ?>