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locallib.php
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locallib.php
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<?php
// This file is part of Assessment module for Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* assessment module local library
*
* @package mod
* @subpackage assessment
* @author Andy Chan, CITE, HKU <[email protected]>
* @copyright 2012 Andy Chan <[email protected]>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once($CFG->dirroot . '/mod/assessment/lib.php');
require_once($CFG->libdir.'/filelib.php');
/**
* Update grades by firing grade_updated event
*
* @param object $assessment null means all assessment
* @param int $userid specific user only, 0 mean all
*/
function assessment_update_grades($assessment=null, $userid=0, $courseid=0) {
global $CFG, $DB;
if (!function_exists('grade_update')) { //workaround for buggy PHP versions
require_once($CFG->libdir.'/gradelib.php');
}
if ($assessment != null) {
// create assessment instance so that weights are loaded
if (! $course = $DB->get_record("course", array("id"=>$assessment->course))) {
print_error('coursemisconf', 'assessment');
}
if (! $cm = get_coursemodule_from_instance("assessment", $assessment->id, $course->id)) {
print_error('errorincorrectcmid', 'assessment');
}
$assessmentinstance = new assessment_base($cm->id, $assessment, $cm, $course);
$assessment = $assessmentinstance->assessment;
if ($grades = assessment_get_user_grades($assessment, $userid)) {
foreach($grades as $k=>$v) {
if ($v->rawgrade == -1) {
$grades[$k]->rawgrade = null;
}
}
assessment_grade_item_update($assessment, $grades);
} else {
assessment_grade_item_update($assessment);
}
} else {
$sql = "SELECT a.*, cm.idnumber as cmidnumber, a.course as courseid
FROM {assessment} a, {course_modules} cm, {modules} m
WHERE m.name='assessment' AND m.id=cm.module AND cm.instance=a.id";
if ($courseid) $sql .= " AND a.course = ".$courseid;
if ($rs = $DB->get_records_sql($sql)) {
foreach ($rs as $assessment) {
if ($assessment->grade != 0) {
assessment_update_grades($assessment);
} else {
assessment_grade_item_update($assessment);
}
}
}
}
}
function assessment_print_url($url, $submissionid, $count, $return=NULL, $edit=1) {
global $CFG, $OUTPUT;
$pix = $OUTPUT->pix_url('f/web') ? $OUTPUT->pix_url('f/web') : $OUTPUT->pix_url('f/html');
$image = html_writer::empty_tag('img', array('src'=>$pix, 'class'=>'icon'));
$filelinkstr = html_writer::tag('span', $url, array('id'=>$submissionid.'_'.$count.'_linkstr'));
$url_text = $image;
if ($return != 'icon') $url_text .= ' '.$filelinkstr;
$html = html_writer::link($url, $url_text, array('title'=>'', 'target'=>'_blank'));
if ($edit) {
$html .= html_writer::empty_tag('input', array('type'=>'hidden', 'id'=>'url_'.$submissionid.'_'.$count, 'name'=>'url_'.$submissionid.'_'.$count, 'value'=>'1'));
$html .= html_writer::link('#', get_string('delete', 'assessment'), array('id'=>'deletelink_'.$submissionid.'_'.$count, 'onclick'=>'deleteFile(\'url_'.$submissionid.'_'.$count.'\');return false;', 'style'=>'color:red;'));
}
$html .= html_writer::empty_tag('br');
return $html;
}
// This seems to be a bad function since it doesn't properly validate https URL
/*
function is_valid_url($url) {
$url = @parse_url($url);
if (!$url) {return false;}
$url = array_map('trim', $url);
$url['port'] = (!isset($url['port'])) ? 80 : (int)$url['port'];
$path = (isset($url['path'])) ? $url['path'] : '';
if ($path == '') {$path = '/';}
$path .= (isset($url['query'])) ? "?$url[query]" : '';
if (isset($url['host']) AND $url['host'] != gethostbyname($url['host'] )) {
if (PHP_VERSION >= 5) {
$headers = get_headers("$url[scheme]://$url[host]:$url[port]$path");
} else {
$fp = fsockopen($url['host'], $url['port'], $errno, $errstr, 30);
if (!$fp) {return false;}
fputs($fp, "HEAD $path HTTP/1.1\r\nHost: $url[host]\r\n\r\n");
$headers = fread ($fp, 128);
fclose ( $fp );
}
$headers = (is_array($headers)) ? implode ("\n", $headers) : $headers;
return (bool) preg_match('#^HTTP/.*\s+[(200|301|302)]+\s#i', $headers);
}
return false;
}
*/
function is_valid_url($url) {
$v = "/^(http|https|ftp):\/\/([A-Z0-9][A-Z0-9_-]*(?:\.[A-Z0-9][A-Z0-9_-]*)+):?(\d+)?\/?/i";
return (bool)preg_match($v, $url);
}
function assessment_print_file($file, $sid, $context, $type='html', $edit=1) {
global $CFG, $OUTPUT;
$return = '';
$strattachment = get_string('attachment', 'assessment');
$filename = $file->get_filename();
$mimetype = $file->get_mimetype();
$iconimage = html_writer::empty_tag('img', array('src'=>$OUTPUT->pix_url(file_mimetype_icon($mimetype)), 'class'=>'icon', 'title'=>$filename, 'alt'=>$filename));
$path = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$context->id.'/mod_assessment/submission/'.$sid.'/'.$filename);
if ($type == 'html') {
if (in_array($mimetype, array('image/gif', 'image/jpeg', 'image/png'))) {
// Image attachments don't get printed as links
$return .= html_writer::empty_tag('br');
$img = html_writer::empty_tag('img', array('src'=>$path, 'title'=>$filename, 'alt'=>$filename, 'style'=>'width:400px;'));
$return .= html_writer::link($path, $img);
} else if (in_array($mimetype, array('video/quicktime', 'video/mp4', 'video/x-ms-wmv', 'video/x-flv'))) {
$return .= html_writer::empty_tag('br');
$return .= html_writer::link($path, $iconimage).' ';
$return .= format_text(html_writer::link($path, s($filename)), FORMAT_HTML, array('context'=>$context));
} else {
$return .= html_writer::link($path, $iconimage).' ';
$return .= html_writer::link($path, s($filename));
$return .= html_writer::empty_tag('br');
}
/*
$return .= html_writer::link($path, $iconimage).' ';
$return .= html_writer::link($path, s($filename));
$return .= html_writer::empty_tag('br');
*/
} else if ($type == 'icon') {
$return .= ' '.html_writer::link($path, $iconimage);
} else if ($type == 'text') {
$return .= "$strattachment ".s($filename).":\n$path\n";
} else { //'returnimages'
if (in_array($mimetype, array('image/gif', 'image/jpeg', 'image/png'))) {
// Image attachments don't get printed as links
$imagereturn .= html_writer::empty_tag('br');
$imagereturn .= html_writer::empty_tag('img', array('src'=>$path, 'title'=>$filename, 'alt'=>$filename));
} else {
$return .= html_writer::link($path, $iconimage).' ';
$return .= format_text(html_writer::link($path, s($filename)), FORMAT_HTML, array('context'=>$context));
$return .= html_writer::empty_tag('br');
}
}
if ($type !== 'separateimages') {
return $return;
} else {
return array($return, $imagereturn);
}
}
function assessment_count_graded($assessment, $type=0) {
/// Returns the count of all graded submissions by ENROLLED students (even empty)
global $CFG, $DB;
if ($type == 0) $assessmentid = $DB->get_field('assessment_types', 'id', array('assessmentid'=>$assessment->id, 'type'=>$type));
$cm = get_coursemodule_from_instance('assessment', $assessment->id);
$context = context_module::instance($cm->id);
// this is all the users with this capability set, in this context or higher
if ($users = get_users_by_capability($context, 'mod/assessment:submit', '', '', '', '', 0, '', false)) {
foreach ($users as $user) {
$array[] = $user->id;
}
$query_params = array('assessmentid'=>$assessmentid, 'timemodified'=>0);
list($in_sql, $in_params) = $DB->get_in_or_equal($array, SQL_PARAMS_NAMED);
$params = array_merge($in_params, $query_params);
return $DB->count_records_select("assessment_grades", "assessmentid = :assessmentid AND timemodified > :timemodified AND userid $in_sql", $params);
} else {
return 0; // no users enroled in course
}
}
function print_assessment_user_submitted_files_simple($submission, $assessment, $cm, $edit=0, $type='html') {
global $OUTPUT;
if (!$context = context_module::instance($cm->id)) {
return get_string('error');
}
$return = '';
$fs = get_file_storage();
$files = $fs->get_area_files($context->id, 'mod_assessment', 'submission', $submission->id, "timemodified", false);
if ($files) {
foreach ($files as $file) {
$return .= assessment_print_file($file, $submission->id, $context, $type, $edit);
}
}
if (!empty($submission->url)) {
$urls = explode('||', $submission->url);
for ($i=0; $i<sizeof($urls); $i++) {
$return .= assessment_print_url($urls[$i], $submission->id, $i, $type, $edit);
}
}
if (!empty($return)) {
return $return;
} else {
return html_writer::tag('span', get_string('nofilesuploaded', 'assessment'));
}
}
function print_assessment_user_submitted_files($submission, $assessment, $cm) {
global $OUTPUT;
if (!$context = context_module::instance($cm->id)) {
return get_string('error');
}
$fileoutput = '';
$fs = get_file_storage();
$files = $fs->get_area_files($context->id, 'mod_assessment', 'submission', $submission->id, "timemodified", false);
if ($files) {
$fileoutput = count($files).' '.get_string('filessubmitted', 'assessment').':<br />';
foreach ($files as $file) {
$fileoutput .= assessment_print_file($file, $submission->id, $context, 'html');
}
}
$return = $OUTPUT->box_start();
if (!empty($fileoutput)) {
$return .= $fileoutput.'<br />';
} else {
$return .= get_string('nofilesuploaded', 'assessment');
}
$return .= $OUTPUT->box_end();
return $return;
}
function assessment_add_new_post($post,&$message) {
global $USER, $CFG, $DB;
$discussion = $DB->get_record('assessment_discussions', array('id'=>$post->discussion));
$assessment = $DB->get_record('assessment', array('id'=>$discussion->assessmentid));
$post->message = $post->message['text'];
$post->timecreated = $post->timemodified = time();
$post->userid = $USER->id;
$post->assessmentid = $assessment->id; // speedup
$post->course = $assessment->course; // speedup
if (!$post->id = $DB->insert_record("assessment_posts", $post)) {
return false;
}
// Update discussion modified date
$DB->set_field("assessment_discussions", "timemodified", $post->timemodified, array("id"=>$post->discussion));
assessment_tp_mark_post_read($post->userid, $post, $post->assessmentid);
return $post->id;
}
function assessment_update_post($post) {
global $USER, $CFG, $DB;
$assessment = $DB->get_record('assessment', array('id'=>$post->assessment));
$post->message = $post->message['text'];
$post->timemodified = time();
$updatediscussion = new stdClass();
$updatediscussion->id = $post->discussionid;
$updatediscussion->timemodified = $post->timemodified; // last modified tracking
if (!$post->parent) { // Post is a discussion starter - update discussion title and times too
$updatediscussion->name = $post->subject;
}
if (!$DB->update_record('assessment_discussions', $updatediscussion)) {
return false;
}
assessment_tp_mark_post_read($post->userid, $post, $post->assessment);
return $DB->update_record('assessment_posts', $post);
}
function assessment_tp_mark_post_read($userid, $post, $assessmentid) {
if (!assessment_tp_is_post_old($post)) {
return assessment_tp_add_read_record($userid, $post->id);
} else {
return true;
}
}
function assessment_tp_is_post_old($post, $time=null) {
global $CFG;
if (is_null($time)) {
$time = time();
}
return ($post->timemodified < ($time - ($CFG->forum_oldpostdays * 24 * 3600)));
}
function assessment_tp_add_read_record($userid, $postid) {
global $CFG, $DB;
$now = time();
$cutoffdate = 0; // this will keep unread record forever
if (!$DB->record_exists('assessment_read', array('userid'=>$userid, 'postid'=>$postid))) {
$params = array($postid, $cutoffdate);
$sql = "INSERT INTO {assessment_read} (userid, postid, discussionid, assessmentid, firstread, lastread)
SELECT $userid, p.id, p.discussionid, d.assessmentid, $now, $now
FROM {assessment_posts} p
JOIN {assessment_discussions} d ON d.id = p.discussionid
WHERE p.id = ? AND p.timemodified >= ?";
} else {
$params = array($now, $userid, $postid);
$sql = "UPDATE {assessment_read}
SET lastread = ?
WHERE userid = ? AND postid = ?";
}
return $DB->execute($sql, $params);
}
function assessment_tp_delete_read_records($userid=-1, $postid=-1, $discussionid=-1, $assessmentid=-1) {
global $DB;
$select = "";
$params = array();
if ($userid > -1) {
if ($select != "") $select .= " AND ";
$params[] = $userid;
$select .= "userid = ?";
}
if ($postid > -1) {
if ($select != "") $select .= " AND ";
$params[] = $postid;
$select .= "postid = ?";
}
if ($discussionid > -1) {
if ($select != "") $select .= " AND ";
$params[] = $discussionid;
$select .= "discussionid = ?";
}
if ($assessmentid > -1) {
if ($select != "") $select .= " AND ";
$params[] = $assessmentid;
$select .= "assessmentid = ?";
}
if ($select == "") {
return false;
}
else {
return $DB->delete_records_select('assessment_read', $select, $params);
}
}
function assessment_tp_count_discussion_posts($userid, $discussionid) {
global $DB;
return $DB->count_records("assessment_posts", array("discussionid"=>$discussionid, "parent"=>0));
}
function assessment_tp_count_discussion_unread_posts($userid, $discussionid) {
global $DB;
$cutoffdate = 0; // keep unread records forever
$params = array($userid, $discussionid, $cutoffdate);
$sql = "SELECT COUNT(p.id)
FROM {assessment_posts} p
LEFT JOIN {assessment_read} r ON r.postid = p.id AND r.userid = ?
WHERE p.discussionid = ? AND p.timemodified >= ? AND r.id is NULL";
return $DB->count_records_sql($sql, $params);
}
function assessment_tp_mark_discussion_read($user, $discussionid) {
global $DB;
$cutoffdate = 0; // keep unread records forever
$params = array($user->id, $discussionid, $cutoffdate);
$sql = "SELECT p.id
FROM {assessment_posts} p
LEFT JOIN {assessment_read} r ON (r.postid = p.id AND r.userid = ?)
WHERE p.discussionid = ?
AND p.timemodified >= ? AND r.id is NULL";
if ($posts = $DB->get_records_sql($sql, $params)) {
$postids = array_keys($posts);
return assessment_tp_mark_posts_read($user, $postids);
}
return true;
}
function assessment_tp_mark_posts_read($user, $postids) {
global $DB;
$status = true;
$now = time();
$cutoffdate = 0; // keep unread records forever
if (empty($postids)) {
return true;
} else if (count($postids) > 200) {
while ($part = array_splice($postids, 0, 200)) {
$status = assessment_tp_mark_posts_read($user, $part) && $status;
}
return $status;
}
$query_params = array('userid'=>$user->id);
list($in_sql, $in_params) = $DB->get_in_or_equal($postids, SQL_PARAMS_NAMED);
$params = array_merge($in_params, $query_params);
$sql = "SELECT id
FROM {assessment_read}
WHERE userid = :userid AND postid $in_sql";
if ($existing = $DB->get_records_sql($sql, $params)) {
$existing = array_keys($existing);
} else {
$existing = array();
}
$new = array_diff($postids, $existing);
$params = array();
if ($new) {
$query_params = array('timemodified'=>$cutoffdate);
list($in_sql, $in_params) = $DB->get_in_or_equal($new, SQL_PARAMS_NAMED);
$params = array_merge($in_params, $query_params);
$sql = "INSERT INTO {assessment_read} (userid, postid, discussionid, assessmentid, firstread, lastread)
SELECT $user->id, p.id, p.discussionid, d.assessmentid, $now, $now
FROM {assessment_posts} p
JOIN {assessment_discussions} d ON d.id = p.discussionid
JOIN {assessment} a ON a.id = d.assessmentid
WHERE p.id $in_sql AND p.timemodified >= :timemodified";
$status = $DB->execute($sql, $params) && $status;
}
if ($existing) {
$query_params = array('lastread'=>$now, 'userid'=>$user->id);
list($in_sql, $in_params) = $DB->get_in_or_equal($existing, SQL_PARAMS_NAMED);
$params = array_merge($in_params, $query_params);
$sql = "UPDATE {assessment_read}
SET lastread = :lastread
WHERE userid = :userid AND postid $in_sql";
$status = $DB->execute($sql, $params) && $status;
}
return $status;
}
function assessment_tp_is_post_read($userid, $post) {
global $DB;
return (assessment_tp_is_post_old($post) ||
$DB->record_exists("assessment_read", array("userid"=>$userid, "postid"=>$post->id)));
}
function assessment_user_can_post($assessment, $discussion, $user=NULL, $cm=NULL, $course=NULL, $context=NULL) {
global $USER, $DB;
if (empty($user)) {
$user = $USER;
}
// shortcut - guest and not-logged-in users cannot post
if (isguestuser($user) or empty($user->id)) {
return false;
}
if (!isset($discussion->groupid)) {
debugging('Incorrect discussion parameter', DEBUG_DEVELOPER);
return false;
}
if (!$cm) {
debugging('Missing cm', DEBUG_DEVELOPER);
if (!$cm = get_coursemodule_from_instance('assessment', $assessment->id, $assessment->course)) {
print_error('errorincorrectcmid', 'assessment');
}
}
if (!$course) {
debugging('Missing course', DEBUG_DEVELOPER);
if (!$course = $DB->get_record('course', array('id'=>$assessment->course))) {
print_error('coursemisconf', 'assessment');
}
}
if (!$context) {
$context = context_module::instance($cm->id);
}
// normal users with temporary guest access can not post
if (isguestuser($user->id)) {
return false;
}
$capname = 'mod/assessment:replypost';
if (!has_capability($capname, $context, $user->id, false)) {
return false;
}
if (!$groupmode = groups_get_activity_groupmode($cm, $course)) {
return true;
}
if (has_capability('moodle/site:accessallgroups', $context)) {
return true;
}
if ($groupmode == VISIBLEGROUPS) {
if ($discussion->groupid == -1) {
// allow students to reply to all participants discussions - this was not possible in Moodle <1.8
return true;
}
return groups_is_member($discussion->groupid);
} else {
//separate groups
if ($discussion->groupid == -1) {
// allow students to reply to all participants discussions - this was not possible in Moodle <1.8
return true;
}
return groups_is_member($discussion->groupid);
}
}
function assessment_print_discussion($course, $cm, $assessment, $discussion, $post, $canreply=NULL) {
global $USER, $CFG;
if (!empty($USER->id)) {
$ownpost = ($USER->id == $post->userid);
} else {
$ownpost = false;
}
if ($canreply === NULL) {
$modcontext = context_module::instance($cm->id);
$reply = assessment_user_can_post($assessment, $discussion, $USER, $cm, $course, $modcontext);
} else {
$reply = $canreply;
}
// $cm holds general cache for forum functions
$cm->cache = new stdClass();
$cm->cache->groups = groups_get_all_groups($course->id, 0, $cm->groupingid);
$cm->cache->usersgroups = array();
$posters = array();
// preload all posts - TODO: improve...
$sort = "p.timecreated ASC";
$posts = assessment_get_all_discussion_posts($discussion->id, $sort);
$post = $posts[$post->id];
foreach ($posts as $pid=>$p) {
$posters[$p->userid] = $p->userid;
}
// preload all groups of ppl that posted in this discussion
if ($postersgroups = groups_get_all_groups($course->id, $posters, $cm->groupingid, 'gm.id, gm.groupid, gm.userid')) {
foreach($postersgroups as $pg) {
if (!isset($cm->cache->usersgroups[$pg->userid])) {
$cm->cache->usersgroups[$pg->userid] = array();
}
$cm->cache->usersgroups[$pg->userid][$pg->groupid] = $pg->groupid;
}
unset($postersgroups);
}
$post->assessmentid = $assessment->id; // Add the assessment id to the post object, later used by assessment_print_post
$post->subject = format_string($post->subject);
$postread = !empty($post->postread);
assessment_print_post($post, $discussion, $assessment, $cm, $course, $ownpost, $reply, false, '', '', $postread, true);
assessment_print_posts_nested($course, $cm, $assessment, $discussion, $post, $reply, $posts);
}
function assessment_print_post($post, $discussion, $assessment, &$cm, $course, $ownpost=false, $reply=false, $link=false,
$footer="", $highlight="", $post_read=null, $dummyifcantsee=true, $istracked=null) {
global $USER, $CFG, $OUTPUT;
// String cache
static $str;
$modcontext = context_module::instance($cm->id);
$post->course = $course->id;
$post->assessmentid = $assessment->id;
// caching
if (!isset($cm->cache)) {
$cm->cache = new stdClass;
}
if (!isset($cm->cache->caps)) {
$cm->cache->caps = array();
$cm->cache->caps['mod/assessment:viewdiscussion'] = has_capability('mod/assessment:viewdiscussion', $modcontext);
$cm->cache->caps['moodle/site:viewfullnames'] = has_capability('moodle/site:viewfullnames', $modcontext);
$cm->cache->caps['mod/assessment:deleteownpost'] = has_capability('mod/assessment:deleteownpost', $modcontext);
$cm->cache->caps['mod/assessment:deleteanypost'] = has_capability('mod/assessment:deleteanypost', $modcontext);
}
if (!isset($cm->uservisible)) {
$cm->uservisible = \core_availability\info_module::is_user_visible($cm, 0, false);;
//$cm->uservisible = coursemodule_visible_for_user($cm);
}
if (!assessment_user_can_see_post($assessment, $discussion, $post, NULL, $cm)) {
if (!$dummyifcantsee) {
return;
}
$output .= html_writer::tag('a', '', array('id'=>'p'.$post->id));
$output .= html_writer::start_tag('div', array('class'=>'forumpost clearfix'));
$output .= html_writer::start_tag('div', array('class'=>'row header'));
$output .= html_writer::tag('div', '', array('class'=>'left picture')); // Picture
if ($post->parent) {
$output .= html_writer::start_tag('div', array('class'=>'topic'));
} else {
$output .= html_writer::start_tag('div', array('class'=>'topic starter'));
}
$output .= html_writer::tag('div', get_string('forumsubjecthidden','forum'), array('class'=>'subject')); // Subject
$output .= html_writer::tag('div', get_string('forumauthorhidden','forum'), array('class'=>'author')); // author
$output .= html_writer::end_tag('div');
$output .= html_writer::end_tag('div'); // row
$output .= html_writer::start_tag('div', array('class'=>'row'));
$output .= html_writer::tag('div', ' ', array('class'=>'left side')); // Groups
$output .= html_writer::tag('div', get_string('forumbodyhidden','forum'), array('class'=>'content')); // Content
$output .= html_writer::end_tag('div'); // row
$output .= html_writer::end_tag('div'); // forumpost
echo $output;
return;
}
if (empty($str)) {
$str = new stdClass;
$str->edit = get_string('edit', 'forum');
$str->delete = get_string('delete', 'forum');
$str->reply = get_string('reply', 'forum');
$str->parent = get_string('parent', 'forum');
$str->pruneheading = get_string('pruneheading', 'forum');
$str->prune = get_string('prune', 'forum');
$str->displaymode = get_user_preferences('forum_displaymode', $CFG->forum_displaymode);
$str->markread = get_string('markread', 'forum');
$str->markunread = get_string('markunread', 'forum');
}
$read_style = '';
// ignore trackign status if not tracked or tracked param missing
if (is_null($post_read)) {
debugging('fetching post_read info');
$post_read = assessment_tp_is_post_read($USER->id, $post);
}
// Build an object that represents the posting user
$postuser = new stdClass;
$postuser->id = $post->userid;
$postuser->firstname = $post->firstname;
$postuser->lastname = $post->lastname;
$postuser->lastnamephonetic = $post->lastnamephonetic;
$postuser->firstnamephonetic = $post->firstnamephonetic;
$postuser->middlename = $post->middlename;
$postuser->alternatename = $post->alternatename;
$postuser->email = $post->email;
$postuser->imagealt = $post->imagealt;
$postuser->picture = $post->picture;
// Some handy things for later on
$postuser->fullname = fullname($postuser, $cm->cache->caps['moodle/site:viewfullnames']);
$postuser->profilelink = new moodle_url('/user/view.php', array('id'=>$post->userid, 'course'=>$course->id));
// Prepare the groups the posting user belongs to
if (isset($cm->cache->usersgroups)) {
$groups = array();
if (isset($cm->cache->usersgroups[$post->userid])) {
foreach ($cm->cache->usersgroups[$post->userid] as $gid) {
$groups[$gid] = $cm->cache->groups[$gid];
}
}
} else {
$groups = groups_get_all_groups($course->id, $post->userid, $cm->groupingid);
}
// Prepare an array of commands
$commands = array();
$discussionlink = new moodle_url('/mod/assessment/discuss.php', array('d'=>$post->discussionid));
// SPECIAL CASE: The front page can display a news item post to non-logged in users.
// Don't display the mark read / unread controls in this case.
if ($CFG->forum_usermarksread && isloggedin()) {
$url = new moodle_url($discussionlink, array('postid'=>$post->id, 'mark'=>'unread'));
$text = $str->markunread;
if (!$post_read) {
$url->param('mark', 'read');
$text = $str->markread;
}
if ($str->displaymode == FORUM_MODE_THREADED) {
$url->param('parent', $post->parent);
} else {
$url->set_anchor('p'.$post->id);
}
$commands[] = array('url'=>$url, 'text'=>$text);
}
// Hack for allow to edit news posts those are not displayed yet until they are displayed
$age = time() - $post->timecreated;
if ($ownpost && $age < $CFG->maxeditingtime) {
$commands[] = array('url'=>new moodle_url('/mod/assessment/post.php', array('edit'=>$post->id)), 'text'=>$str->edit);
}
if (($ownpost && $age < $CFG->maxeditingtime && $cm->cache->caps['mod/assessment:deleteownpost']) || $cm->cache->caps['mod/assessment:deleteanypost']) {
$commands[] = array('url'=>new moodle_url('/mod/assessment/post.php', array('delete'=>$post->id)), 'text'=>$str->delete);
}
if ($reply) {
$commands[] = array('url'=>new moodle_url('/mod/assessment/post.php', array('reply'=>$post->id)), 'text'=>$str->reply);
}
// Begin output
$output = '';
if ($post_read) {
$forumpostclass = ' read';
} else {
$forumpostclass = ' unread';
$output .= html_writer::tag('a', '', array('name'=>'unread'));
}
$topicclass = '';
if (empty($post->parent)) {
$topicclass = ' firstpost starter';
}
$output .= html_writer::tag('a', '', array('id'=>'p'.$post->id));
$output .= html_writer::start_tag('div', array('class'=>'forumpost clearfix'.$forumpostclass.$topicclass));
$output .= html_writer::start_tag('div', array('class'=>'row header clearfix'));
$output .= html_writer::start_tag('div', array('class'=>'left picture'));
$output .= $OUTPUT->user_picture($postuser, array('courseid'=>$course->id));
$output .= html_writer::end_tag('div');
$output .= html_writer::start_tag('div', array('class'=>'topic'.$topicclass));
$postsubject = $post->subject;
if (empty($post->subjectnoformat)) {
$postsubject = format_string($postsubject);
}
$output .= html_writer::tag('div', $postsubject, array('class'=>'subject'));
$by = new stdClass();
$by->name = html_writer::link($postuser->profilelink, $postuser->fullname);
$by->date = userdate($post->timemodified);
$output .= html_writer::tag('div', get_string('bynameondate', 'forum', $by), array('class'=>'author'));
$output .= html_writer::end_tag('div'); //topic
$output .= html_writer::end_tag('div'); //row
$output .= html_writer::start_tag('div', array('class'=>'row maincontent clearfix'));
$output .= html_writer::start_tag('div', array('class'=>'left'));
$groupoutput = '';
if ($groups) {
$groupoutput = print_group_picture($groups, $course->id, false, true, true);
}
if (empty($groupoutput)) {
$groupoutput = ' ';
}
$output .= html_writer::tag('div', $groupoutput, array('class'=>'grouppictures'));
$output .= html_writer::end_tag('div'); //left side
$output .= html_writer::start_tag('div', array('class'=>'no-overflow'));
$output .= html_writer::start_tag('div', array('class'=>'content'));
$options = new stdClass;
$options->para = false;
$options->trusted = true;
$options->context = $modcontext;
// Prepare whole post
$postclass = 'fullpost';
$postcontent = format_text($post->message, $post->format, $options, $course->id);
if (!empty($highlight)) {
$postcontent = highlight($highlight, $postcontent);
}
// Output the post content
$output .= html_writer::tag('div', $postcontent, array('class'=>'posting '.$postclass));
$output .= html_writer::end_tag('div'); // Content
$output .= html_writer::end_tag('div'); // Content mask
$output .= html_writer::end_tag('div'); // Row
$output .= html_writer::start_tag('div', array('class'=>'row side'));
$output .= html_writer::tag('div',' ', array('class'=>'left'));
$output .= html_writer::start_tag('div', array('class'=>'options clearfix'));
// Output the commands
$commandhtml = array();
foreach ($commands as $command) {
if (is_array($command)) {
$commandhtml[] = html_writer::link($command['url'], $command['text']);
} else {
$commandhtml[] = $command;
}
}
$output .= html_writer::tag('div', implode(' | ', $commandhtml), array('class'=>'commands'));
// Output link to post if required
if ($link) {
if ($post->replies == 1) {
$replystring = get_string('repliesone', 'forum', $post->replies);
} else {
$replystring = get_string('repliesmany', 'forum', $post->replies);
}
$output .= html_writer::start_tag('div', array('class'=>'link'));
$output .= html_writer::link($discussionlink, get_string('discussthistopic', 'forum'));
$output .= ' ('.$replystring.')';
$output .= html_writer::end_tag('div'); // link
}
// Output footer if required
if ($footer) {
$output .= html_writer::tag('div', $footer, array('class'=>'footer'));
}
// Close remaining open divs
$output .= html_writer::end_tag('div'); // content
$output .= html_writer::end_tag('div'); // row
$output .= html_writer::end_tag('div'); // forumpost
// Mark the forum post as read if required
if ($istracked && !$CFG->forum_usermarksread && !$postisread) {
assessment_tp_mark_post_read($USER->id, $post, $forum->id);
}
echo $output;
return;
}
function assessment_print_posts_nested($course, &$cm, $assessment, $discussion, $parent, $reply, $posts) {
global $USER, $OUTPUT;
$link = false;
$output = '';
if (!empty($posts[$parent->id]->children)) {
$posts = $posts[$parent->id]->children;
foreach ($posts as $post) {
echo html_writer::start_tag('div', array('class'=>'indent'));
if (!isloggedin()) {
$ownpost = false;
} else {
$ownpost = ($USER->id == $post->userid);
}
$post->subject = format_string($post->subject);
$postread = !empty($post->postread);
assessment_print_post($post, $discussion, $assessment, $cm, $course, $ownpost, $reply, $link, '', '', $postread, true);
assessment_print_posts_nested($course, $cm, $assessment, $discussion, $post, $reply, $posts);
echo html_writer::end_tag('div'); // content
}
}
return true;
}
function assessment_get_all_discussion_posts($discussionid, $sort) {
global $USER, $DB;
$tr_sel = "";
$tr_join = "";
$now = time();
$params = array($USER->id, $discussionid);
$tr_sel = ", ar.id AS postread";
$tr_join = "LEFT JOIN {assessment_read} ar ON (ar.postid = p.id AND ar.userid = ?)";
$more_names = "u.lastnamephonetic, u.firstnamephonetic, u.middlename, u.alternatename,";
if (!$posts = $DB->get_records_sql($sql="SELECT p.*, u.firstname, u.lastname, $more_names u.email, u.picture, u.imagealt $tr_sel
FROM {assessment_posts} p
LEFT JOIN {user} u ON p.userid = u.id
$tr_join
WHERE p.discussionid = $discussionid
ORDER BY $sort", $params)) {
return array();
}
foreach ($posts as $pid=>$p) {
if (assessment_tp_is_post_old($p)) {
$posts[$pid]->postread = true;
}
if (!$p->parent) {
continue;
}
if (!isset($posts[$p->parent])) {
continue; // parent does not exist??
}
if (!isset($posts[$p->parent]->children)) {
$posts[$p->parent]->children = array();
}
$posts[$p->parent]->children[$pid] =& $posts[$pid];
}
return $posts;
}
function assessment_get_post_full($postid) {
global $DB;
$params = array($postid);
$more_names = "u.lastnamephonetic, u.firstnamephonetic, u.middlename, u.alternatename,";
$sql = "SELECT p.*, d.assessmentid, u.firstname, u.lastname, $more_names u.email, u.picture, u.imagealt
FROM {assessment_posts} p
JOIN {assessment_discussions} d ON p.discussionid = d.id
LEFT JOIN {user} u ON p.userid = u.id
WHERE p.id = ?";
$return = $DB->get_record_sql($sql, $params);
return $return;
}
function assessment_count_replies($post, $children=true) {
global $DB;
$count = 0;
if ($children) {
if ($childposts = $DB->get_records('assessment_posts', array('parent'=>$post->id))) {
foreach ($childposts as $childpost) {
$count ++; // For this child
$count += assessment_count_replies($childpost, true);
}
}
} else {
$count += $DB->count_records('assessment_posts', array('parent'=>$post->id));
}
return $count;
}
function assessment_add_discussion($discussion, $message) {
global $USER, $CFG, $DB;
$timenow = time();
// The first post is stored as a real post, and linked to from the discuss entry.
$post = new stdClass();
$post->discussionid = 0;
$post->parent = 0;
$post->userid = $USER->id;
$post->timecreated = $timenow;
$post->timemodified = $timenow;
$post->subject = $discussion->name;
$post->message = $discussion->intro;