"MDL-23915 fixed js error in comment"
[moodle.git] / comment / lib.php
CommitLineData
1bcb7eb5 1<?php
2
36051c9e
DC
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
1bcb7eb5 18/**
36051c9e 19 * Comment is helper class to add/delete comments anywhere in moodle
1bcb7eb5 20 *
36051c9e 21 * @package comment
3a11c09f 22 * @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
1bcb7eb5 23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 */
1bcb7eb5 25
36051c9e 26class comment {
1bcb7eb5 27 /**
36051c9e 28 * @var integer
1bcb7eb5 29 */
36051c9e
DC
30 private $page;
31 /**
32 * there may be several comment box in one page
33 * so we need a client_id to recognize them
34 * @var integer
35 */
36 private $cid;
37 private $contextid;
38 /**
39 * commentarea is used to specify different
40 * parts shared the same itemid
41 * @var string
42 */
43 private $commentarea;
44 /**
45 * itemid is used to associate with commenting content
46 * @var integer
47 */
48 private $itemid;
49
50 /**
51 * this html snippet will be used as a template
52 * to build comment content
53 * @var string
54 */
55 private $template;
56 private $context;
866354a9 57 private $courseid;
36051c9e 58 /**
866354a9
DC
59 * course module object, only be used to help find pluginname automatically
60 * if pluginname is specified, it won't be used at all
36051c9e
DC
61 * @var string
62 */
63 private $cm;
64 private $plugintype;
866354a9
DC
65 /**
66 * When used in module, it is recommended to use it
67 * @var string
68 */
36051c9e
DC
69 private $pluginname;
70 private $viewcap;
71 private $postcap;
72 /**
73 * to tell comments api where it is used
74 * @var string
75 */
76 private $env;
77 /**
78 * to costomize link text
79 * @var string
80 */
81 private $linktext;
866354a9
DC
82
83 // static variable will be used by non-js comments UI
36051c9e 84 private static $nonjs = false;
36051c9e
DC
85 private static $comment_itemid = null;
86 private static $comment_context = null;
87 private static $comment_area = null;
a5306210 88 private static $comment_page = null;
36051c9e 89 /**
866354a9 90 * Construct function of comment class, initialise
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DC
91 * class members
92 * @param object $options
93 */
94 public function __construct($options) {
95 global $CFG, $DB;
76951100 96
c794595d
DC
97 if (empty($CFG->commentsperpage)) {
98 $CFG->commentsperpage = 15;
99 }
100
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DC
101 $this->viewcap = false;
102 $this->postcap = false;
76951100 103
866354a9 104 // setup client_id
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DC
105 if (!empty($options->client_id)) {
106 $this->cid = $options->client_id;
107 } else {
108 $this->cid = uniqid();
109 }
3a11c09f 110
866354a9 111 // setup context
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DC
112 if (!empty($options->context)) {
113 $this->context = $options->context;
114 $this->contextid = $this->context->id;
115 } else if(!empty($options->contextid)) {
116 $this->contextid = $options->contextid;
117 $this->context = get_context_instance_by_id($this->contextid);
118 } else {
119 print_error('invalidcontext');
120 }
76951100 121
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DC
122 // setup course
123 // course will be used to generate user profile link
124 if (!empty($options->course)) {
125 $this->courseid = $options->course->id;
126 } else if (!empty($options->courseid)) {
127 $this->courseid = $options->courseid;
5b95daec 128 } else {
fe40925a 129 $this->courseid = SITEID;
866354a9
DC
130 }
131
132 if (!empty($options->pluginname)) {
133 $this->pluginname = $options->pluginname;
134 }
3a11c09f 135
866354a9
DC
136 // setup coursemodule
137 if (!empty($options->cm)) {
138 $this->cm = $options->cm;
139 } else {
140 $this->cm = null;
141 }
142
143 // setup commentarea
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DC
144 if (!empty($options->area)) {
145 $this->commentarea = $options->area;
146 }
76951100 147
866354a9 148 // setup itemid
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149 if (!empty($options->itemid)) {
150 $this->itemid = $options->itemid;
467c85d7
DC
151 } else {
152 $this->itemid = 0;
36051c9e 153 }
76951100 154
866354a9 155 // setup env
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DC
156 if (!empty($options->env)) {
157 $this->env = $options->env;
1bcb7eb5 158 } else {
08a22be6 159 $this->env = '';
1bcb7eb5 160 }
1bcb7eb5 161
866354a9 162 // setup customized linktext
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DC
163 if (!empty($options->linktext)) {
164 $this->linktext = $options->linktext;
165 } else {
166 $this->linktext = get_string('comments');
167 }
866354a9
DC
168 // setting post and view permissions
169 $this->check_permissions();
170
171 if (!empty($options->showcount)) {
172 $count = $this->count();
173 if (empty($count)) {
174 $this->count = '';
175 } else {
176 $this->count = '('.$count.')';
177 }
178 } else {
179 $this->count = '';
180 }
36051c9e 181
05fe3ab5 182 $this->setup_plugin();
36051c9e 183
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DC
184 // setup options for callback functions
185 $this->args = new stdclass;
186 $this->args->context = $this->context;
187 $this->args->courseid = $this->courseid;
188 $this->args->cm = $this->cm;
189 $this->args->commentarea = $this->commentarea;
190 $this->args->itemid = $this->itemid;
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DC
191
192 // load template
193 $this->template = <<<EOD
194<div class="comment-userpicture">___picture___</div>
195<div class="comment-content">
196 ___name___ - <span>___time___</span>
197 <div>___content___</div>
198</div>
199EOD;
200 if (!empty($this->plugintype)) {
866354a9 201 $this->template = plugin_callback($this->plugintype, $this->pluginname, FEATURE_COMMENT, 'template', $this->args, $this->template);
1bcb7eb5 202 }
203
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DC
204 unset($options);
205 }
206
207 /**
208 * Receive nonjs comment parameters
209 */
210 public static function init() {
211 global $PAGE, $CFG;
212 // setup variables for non-js interface
213 self::$nonjs = optional_param('nonjscomment', '', PARAM_ALPHA);
214 self::$comment_itemid = optional_param('comment_itemid', '', PARAM_INT);
215 self::$comment_context = optional_param('comment_context', '', PARAM_INT);
a5306210 216 self::$comment_page = optional_param('comment_page', '', PARAM_INT);
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DC
217 self::$comment_area = optional_param('comment_area', '', PARAM_ALPHAEXT);
218
219 $PAGE->requires->string_for_js('addcomment', 'moodle');
220 $PAGE->requires->string_for_js('deletecomment', 'moodle');
221 $PAGE->requires->string_for_js('comments', 'moodle');
1bcb7eb5 222 }
223
36051c9e 224 /**
866354a9 225 * Setup plugin type and plugin name
36051c9e 226 */
05fe3ab5 227 private function setup_plugin() {
1bcb7eb5 228 global $DB;
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DC
229 // blog needs to set env as "blog"
230 if ($this->env == 'blog') {
231 $this->plugintype = 'moodle';
232 $this->pluginname = 'blog';
233 }
234 // tag page needs to set env as "tag"
235 if ($this->env == 'tag') {
236 $this->plugintype = 'moodle';
237 $this->pluginname = 'tag';
238 }
1bcb7eb5 239 if ($this->context->contextlevel == CONTEXT_BLOCK) {
240 if ($block = $DB->get_record('block_instances', array('id'=>$this->context->instanceid))) {
241 $this->plugintype = 'block';
242 $this->pluginname = $block->blockname;
243 }
244 }
866354a9 245
cdbf0f5a 246 if ($this->context->contextlevel == CONTEXT_MODULE && $this->env != 'block_comments') {
1bcb7eb5 247 $this->plugintype = 'mod';
866354a9
DC
248 // to improve performance, pluginname should be assigned before initilise comment object
249 // if it is empty, we will try to guess, it will rarely be used.
250 if (empty($this->pluginname)) {
251 if (empty($this->course)) {
252 $this->course = $DB->get_record('course', array('id'=>$this->courseid), '*', MUST_EXIST);
253 }
254 $this->modinfo = get_fast_modinfo($this->course);
255 $this->pluginname = $this->modinfo->cms[$this->cm->id]->modname;
256 }
1bcb7eb5 257 }
258 }
259
260 /**
36051c9e
DC
261 * check posting comments permission
262 * It will check based on user roles and ask modules
263 * If you need to check permission by modules, a
264 * function named $pluginname_check_comment_post must be implemented
1bcb7eb5 265 */
05fe3ab5 266 private function check_permissions() {
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DC
267 global $CFG;
268 $this->postcap = has_capability('moodle/comment:post', $this->context);
269 $this->viewcap = has_capability('moodle/comment:view', $this->context);
270 if (!empty($this->plugintype)) {
866354a9 271 $permissions = plugin_callback($this->plugintype, $this->pluginname, FEATURE_COMMENT, 'permissions', $this->args, array('post'=>true, 'view'=>true));
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DC
272 $this->postcap = $this->postcap && $permissions['post'];
273 $this->viewcap = $this->viewcap && $permissions['view'];
6f5e0852 274 }
1bcb7eb5 275 }
276
277 /**
36051c9e
DC
278 * Prepare comment code in html
279 * @param boolean $return
280 * @return mixed
1bcb7eb5 281 */
36051c9e 282 public function output($return = true) {
4b201bc6
DC
283 global $PAGE, $OUTPUT;
284 static $template_printed;
36051c9e 285
5dce9d1b 286 $this->link = $PAGE->url;
36051c9e
DC
287 $murl = new moodle_url($this->link);
288 $murl->remove_params('nonjscomment');
289 $murl->param('nonjscomment', 'true');
866354a9
DC
290 $murl->param('comment_itemid', $this->itemid);
291 $murl->param('comment_context', $this->context->id);
292 $murl->param('comment_area', $this->commentarea);
a5306210 293 $murl->remove_params('comment_page');
36051c9e 294 $this->link = $murl->out();
76951100 295
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DC
296 $options = new stdclass;
297 $options->client_id = $this->cid;
298 $options->commentarea = $this->commentarea;
299 $options->itemid = $this->itemid;
300 $options->page = 0;
866354a9 301 $options->courseid = $this->courseid;
36051c9e 302 $options->contextid = $this->contextid;
76951100 303 $options->env = $this->env;
36051c9e
DC
304 if ($this->env == 'block_comments') {
305 $options->autostart = true;
306 $options->notoggle = true;
307 }
308
309 $PAGE->requires->js_init_call('M.core_comment.init', array($options), true);
310
311 if (!empty(self::$nonjs)) {
76951100 312 // return non js comments interface
a5306210 313 return $this->print_comments(self::$comment_page, $return, true);
36051c9e 314 }
76951100 315
326d9aaa 316 $strsubmit = get_string('savecomment');
36051c9e 317 $strcancel = get_string('cancel');
b667ba00 318 $strshowcomments = get_string('showcommentsnonjs');
36051c9e 319 $sesskey = sesskey();
4b201bc6 320 $html = '';
36051c9e 321 // print html template
76951100 322 // Javascript will use the template to render new comments
4b201bc6
DC
323 if (empty($template_printed) && !empty($this->viewcap)) {
324 $html .= '<div style="display:none" id="cmt-tmpl">' . $this->template . '</div>';
325 $template_printed = true;
36051c9e
DC
326 }
327
328 if (!empty($this->viewcap)) {
329 // print commenting icon and tooltip
07eebf20 330 $icon = $OUTPUT->pix_url('t/collapsed');
4b201bc6 331 $html .= <<<EOD
b1d124d1 332<div class="mdl-left">
b667ba00
DC
333<noscript>
334<a href="{$this->link}">{$strshowcomments}</a>
335</noscript>
336<a id="comment-link-{$this->cid}" class="comment-link" href="#">
07eebf20 337 <img id="comment-img-{$this->cid}" src="$icon" alt="{$this->linktext}" title="{$this->linktext}" />
76951100 338 <span id="comment-link-text-{$this->cid}">{$this->linktext} {$this->count}</span>
36051c9e
DC
339</a>
340<div id="comment-ctrl-{$this->cid}" class="comment-ctrl">
341 <ul id="comment-list-{$this->cid}" class="comment-list">
76951100
DC
342EOD;
343 // in comments block, we print comments list right away
344 if ($this->env == 'block_comments') {
345 $html .= $this->print_comments(0, true, false);
3e34183a
DC
346 $html .= '</ul>';
347 $html .= $this->get_pagination(0);
348 } else {
349 $html .= <<<EOD
36051c9e
DC
350 </ul>
351 <div id="comment-pagination-{$this->cid}" class="comment-pagination"></div>
352EOD;
3e34183a 353 }
36051c9e
DC
354
355 // print posting textarea
356 if (!empty($this->postcap)) {
357 $html .= <<<EOD
358<div class='comment-area'>
359 <div class="bd">
76951100 360 <textarea name="content" rows="2" id="dlg-content-{$this->cid}"></textarea>
36051c9e
DC
361 </div>
362 <div class="fd" id="comment-action-{$this->cid}">
1150c1bd 363 <a href="#" id="comment-action-post-{$this->cid}"> {$strsubmit} </a>
36051c9e
DC
364EOD;
365 if ($this->env != 'block_comments') {
366 $html .= <<<EOD
367 <span> | </span>
1150c1bd 368 <a href="#" id="comment-action-cancel-{$this->cid}"> {$strcancel} </a>
36051c9e
DC
369EOD;
370 }
371
372 $html .= <<<EOD
373 </div>
374</div>
b1d124d1 375<div class="clearer"></div>
36051c9e
DC
376EOD;
377 }
378
379 $html .= <<<EOD
76951100 380</div><!-- end of comment-ctrl -->
36051c9e
DC
381</div>
382EOD;
383 } else {
384 $html = '';
385 }
386
387 if ($return) {
388 return $html;
389 } else {
390 echo $html;
1bcb7eb5 391 }
1bcb7eb5 392 }
36051c9e 393
1bcb7eb5 394 /**
36051c9e 395 * Return matched comments
4df53d1a 396 *
36051c9e
DC
397 * @param int $page
398 * @return mixed
1bcb7eb5 399 */
36051c9e
DC
400 public function get_comments($page = '') {
401 global $DB, $CFG, $USER, $OUTPUT;
402 if (empty($this->viewcap)) {
403 return false;
404 }
36051c9e
DC
405 if (!is_numeric($page)) {
406 $page = 0;
407 }
408 $this->page = $page;
409 $params = array();
410 $start = $page * $CFG->commentsperpage;
4df53d1a 411 $ufields = user_picture::fields('u', array('username'));
25228004 412 $sql = "SELECT $ufields, c.id AS cid, c.content AS ccontent, c.format AS cformat, c.timecreated AS ctimecreated
3a11c09f
PS
413 FROM {comments} c
414 JOIN {user} u ON u.id = c.userid
415 WHERE c.contextid = :contextid AND c.commentarea = :commentarea AND c.itemid = :itemid
416 ORDER BY c.timecreated DESC";
417 $params['contextid'] = $this->contextid;
418 $params['commentarea'] = $this->commentarea;
419 $params['itemid'] = $this->itemid;
36051c9e
DC
420
421 $comments = array();
422 $candelete = has_capability('moodle/comment:delete', $this->context);
3a11c09f 423 $rs = $DB->get_recordset_sql($sql, $params, $start, $CFG->commentsperpage);
25228004 424 foreach ($rs as $u) {
3a11c09f
PS
425 $c = new object();
426 $c->id = $u->cid;
427 $c->content = $u->ccontent;
428 $c->format = $u->cformat;
429 $c->timecreated = $u->ctimecreated;
08a5988a 430 $url = new moodle_url('/user/view.php', array('id'=>$u->id, 'course'=>$this->courseid));
4df53d1a
DC
431 $c->username = $u->username;
432 $c->profileurl = $url;
433 $c->fullname = fullname($u);
3a11c09f
PS
434 $c->time = userdate($c->timecreated, get_string('strftimerecent', 'langconfig'));
435 $c->content = format_text($c->content, $c->format);
436
437 $c->avatar = $OUTPUT->user_picture($u, array('size'=>18));
438 if (($USER->id == $u->id) || !empty($candelete)) {
439 $c->delete = true;
36051c9e 440 }
3a11c09f 441 $comments[] = $c;
36051c9e 442 }
3a11c09f
PS
443 $rs->close();
444
36051c9e
DC
445 if (!empty($this->plugintype)) {
446 // moodle module will filter comments
866354a9 447 $comments = plugin_callback($this->plugintype, $this->pluginname, FEATURE_COMMENT, 'display', array($comments, $this->args), $comments);
36051c9e
DC
448 }
449
450 return $comments;
451 }
452
453 public function count() {
1bcb7eb5 454 global $DB;
36051c9e
DC
455 if ($count = $DB->count_records('comments', array('itemid'=>$this->itemid, 'commentarea'=>$this->commentarea, 'contextid'=>$this->context->id))) {
456 return $count;
457 } else {
458 return 0;
459 }
460 }
461
462 public function get_pagination($page = 0) {
463 global $DB, $CFG, $OUTPUT;
464 $count = $this->count();
465 $pages = (int)ceil($count/$CFG->commentsperpage);
466 if ($pages == 1 || $pages == 0) {
467 return '';
468 }
469 if (!empty(self::$nonjs)) {
470 // used in non-js interface
a5306210 471 return $OUTPUT->paging_bar($count, $page, $CFG->commentsperpage, $this->link, 'comment_page');
36051c9e
DC
472 } else {
473 // return ajax paging bar
474 $str = '';
3e34183a 475 $str .= '<div class="comment-paging" id="comment-pagination-'.$this->cid.'">';
36051c9e 476 for ($p=0; $p<$pages; $p++) {
36051c9e 477 if ($p == $page) {
c794595d
DC
478 $class = 'curpage';
479 } else {
480 $class = 'pageno';
1bcb7eb5 481 }
1150c1bd 482 $str .= '<a href="#" class="'.$class.'" id="comment-page-'.$this->cid.'-'.$p.'">'.($p+1).'</a> ';
36051c9e
DC
483 }
484 $str .= '</div>';
485 }
486 return $str;
487 }
488
489 /**
490 * Add a new comment
491 * @param string $content
492 * @return mixed
493 */
494 public function add($content, $format = FORMAT_MOODLE) {
495 global $CFG, $DB, $USER, $OUTPUT;
496 if (empty($this->postcap)) {
497 throw new comment_exception('nopermissiontocomment');
498 }
499 $now = time();
500 $newcmt = new stdclass;
501 $newcmt->contextid = $this->contextid;
502 $newcmt->commentarea = $this->commentarea;
503 $newcmt->itemid = $this->itemid;
504 $newcmt->content = $content;
505 $newcmt->format = $format;
506 $newcmt->userid = $USER->id;
507 $newcmt->timecreated = $now;
508
509 if (!empty($this->plugintype)) {
510 // moodle module will check content
866354a9 511 $ret = plugin_callback($this->plugintype, $this->pluginname, FEATURE_COMMENT, 'add', array(&$newcmt, $this->args), true);
36051c9e
DC
512 if (!$ret) {
513 throw new comment_exception('modulererejectcomment');
1bcb7eb5 514 }
515 }
36051c9e
DC
516
517 $cmt_id = $DB->insert_record('comments', $newcmt);
518 if (!empty($cmt_id)) {
519 $newcmt->id = $cmt_id;
520 $newcmt->time = userdate($now, get_string('strftimerecent', 'langconfig'));
4df53d1a
DC
521 $newcmt->username = $USER->username;
522 $newcmt->fullname = fullname($USER);
523 $url = new moodle_url('/user/view.php', array('id'=>$USER->id, 'course'=>$this->courseid));
524 $newcmt->profileurl = $url->out();
650a0c0a 525 $newcmt->content = format_text($newcmt->content, $format);
36051c9e
DC
526 $newcmt->avatar = $OUTPUT->user_picture($USER, array('size'=>16));
527 return $newcmt;
528 } else {
529 throw new comment_exception('dbupdatefailed');
530 }
531 }
532
533 /**
534 * delete by context, commentarea and itemid
650a0c0a
DC
535 * @param object $param {
536 * contextid => int the context in which the comments exist [required]
537 * commentarea => string the comment area [optional]
538 * itemid => int comment itemid [optional]
539 * }
540 * @return boolean
36051c9e 541 */
650a0c0a 542 public function delete_comments($param) {
36051c9e 543 global $DB;
650a0c0a
DC
544 $param = (array)$param;
545 if (empty($param['contextid'])) {
546 return false;
547 }
548 $DB->delete_records('comments', $param);
b9a689e8 549 return true;
36051c9e
DC
550 }
551
552 /**
553 * Delete a comment
554 * @param int $commentid
555 * @return mixed
556 */
557 public function delete($commentid) {
558 global $DB, $USER;
559 $candelete = has_capability('moodle/comment:delete', $this->context);
560 if (!$comment = $DB->get_record('comments', array('id'=>$commentid))) {
561 throw new comment_exception('dbupdatefailed');
562 }
563 if (!($USER->id == $comment->userid || !empty($candelete))) {
564 throw new comment_exception('nopermissiontocomment');
565 }
b9a689e8
DC
566 $DB->delete_records('comments', array('id'=>$commentid));
567 return true;
36051c9e
DC
568 }
569
76951100
DC
570 /**
571 * Print comments
572 * @param int $page
573 * @param boolean $return return comments list string or print it out
574 * @param boolean $nonjs print nonjs comments list or not?
575 * @return mixed
576 */
577 public function print_comments($page = 0, $return = true, $nonjs = true) {
5dce9d1b 578 global $DB, $CFG, $PAGE;
36051c9e 579 $html = '';
866354a9
DC
580 if (!(self::$comment_itemid == $this->itemid &&
581 self::$comment_context == $this->context->id &&
582 self::$comment_area == $this->commentarea)) {
36051c9e
DC
583 $page = 0;
584 }
585 $comments = $this->get_comments($page);
586
76951100
DC
587 $html = '';
588 if ($nonjs) {
589 $html .= '<h3>'.get_string('comments').'</h3>';
590 $html .= "<ul id='comment-list-$this->cid' class='comment-list'>";
591 }
36051c9e
DC
592 $results = array();
593 $list = '';
76951100 594
36051c9e 595 foreach ($comments as $cmt) {
76951100 596 $list = '<li id="comment-'.$cmt->id.'-'.$this->cid.'">'.$this->print_comment($cmt, $nonjs).'</li>' . $list;
36051c9e
DC
597 }
598 $html .= $list;
76951100
DC
599 if ($nonjs) {
600 $html .= '</ul>';
3e34183a 601 $html .= $this->get_pagination($page);
76951100 602 }
36051c9e 603 $sesskey = sesskey();
5dce9d1b 604 $returnurl = $PAGE->url;
36051c9e 605 $strsubmit = get_string('submit');
76951100 606 if ($nonjs) {
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607 $html .= <<<EOD
608<form method="POST" action="{$CFG->wwwroot}/comment/comment_post.php">
76951100 609<textarea name="content" rows="2"></textarea>
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610<input type="hidden" name="contextid" value="$this->contextid" />
611<input type="hidden" name="action" value="add" />
612<input type="hidden" name="area" value="$this->commentarea" />
613<input type="hidden" name="itemid" value="$this->itemid" />
866354a9 614<input type="hidden" name="courseid" value="{$this->courseid}" />
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615<input type="hidden" name="sesskey" value="{$sesskey}" />
616<input type="hidden" name="returnurl" value="{$returnurl}" />
617<input type="submit" value="{$strsubmit}" />
618</form>
619EOD;
76951100 620 }
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621 if ($return) {
622 return $html;
623 } else {
624 echo $html;
625 }
626 }
627
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628 public function print_comment($cmt, $nonjs = true) {
629 global $OUTPUT;
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630 $patterns = array();
631 $replacements = array();
632
76951100 633 if (!empty($cmt->delete) && empty($nonjs)) {
1150c1bd 634 $cmt->content = '<div class="comment-delete"><a href="#" id ="comment-delete-'.$this->cid.'-'.$cmt->id.'"><img src="'.$OUTPUT->pix_url('t/delete').'" /></a></div>' . $cmt->content;
76951100
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635 // add the button
636 }
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637 $patterns[] = '___picture___';
638 $patterns[] = '___name___';
639 $patterns[] = '___content___';
640 $patterns[] = '___time___';
641 $replacements[] = $cmt->avatar;
4df53d1a 642 $replacements[] = html_writer::link($cmt->profileurl, $cmt->fullname);
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643 $replacements[] = $cmt->content;
644 $replacements[] = userdate($cmt->timecreated, get_string('strftimerecent', 'langconfig'));
645
646 // use html template to format a single comment.
647 return str_replace($patterns, $replacements, $this->template);
648 }
649}
650
651class comment_exception extends moodle_exception {
652 public $message;
653 function __construct($errorcode) {
654 $this->errorcode = $errorcode;
655 $this->message = get_string($errorcode, 'error');
1bcb7eb5 656 }
657}