perpage;
}
$sql = "SELECT c.id, c.contextid, c.itemid, c.commentarea, c.userid, c.content, u.username, u.firstname, u.lastname, c.timecreated
FROM {comments} c, {user} u
WHERE u.id=c.userid ORDER BY c.timecreated ASC";
$comments = array();
if ($records = $DB->get_records_sql($sql, array(), $start, $this->perpage)) {
foreach ($records as $item) {
$item->username = fullname($item);
$item->time = userdate($item->timecreated);
$item->content = format_text($item->content);
$comments[] = $item;
unset($item->firstname);
unset($item->lastname);
unset($item->timecreated);
}
}
return $comments;
}
private function _setup_course($courseid) {
global $COURSE, $DB;
if (!empty($this->course)) {
// already set, stop
return;
}
if ($courseid == $COURSE->id) {
$this->course = $COURSE;
} else if (!$this->course = $DB->get_record('course', array('id'=>$courseid))) {
$this->course = null;
}
}
private function _setup_plugin($comment) {
global $DB;
$this->context = get_context_instance_by_id($comment->contextid);
if ($this->context->contextlevel == CONTEXT_BLOCK) {
if ($block = $DB->get_record('block_instances', array('id'=>$this->context->instanceid))) {
$this->plugintype = 'block';
$this->pluginname = $block->blockname;
}
}
if ($this->context->contextlevel == CONTEXT_MODULE) {
$this->plugintype = 'mod';
$this->cm = get_coursemodule_from_id('', $this->context->instanceid);
$this->_setup_course($this->cm->course);
$this->modinfo = get_fast_modinfo($this->course);
$this->pluginname = $this->modinfo->cms[$this->cm->id]->modname;
}
}
/**
* Print comments
* @param int $page
*/
function print_comments($page=0) {
global $CFG, $OUTPUT, $DB;
$this->perpage = 10;
$count = $DB->count_records_sql('SELECT COUNT(*) FROM {comments} c');
$comments = $this->get_comments($page);
$table = new html_table();
$table->head = array ('', 'author', 'content', 'action');
$table->align = array ('left', 'left', 'left', 'left');
$table->width = "95%";
$table->data = array();
foreach ($comments as $c) {
$this->_setup_plugin($c);
if (!empty($this->plugintype)) {
$url = plugin_callback($this->plugintype, $this->pluginname, FEATURE_COMMENT, 'url', array($c));
}
$checkbox = '';
$action = '';
$action .= "".get_string('delete').'';
$action .= "
";
if (!empty($url)) {
$action .= "".get_string('commentincontext').'';
}
$table->data[] = array($checkbox, $c->username, $c->content, $action);
}
echo $OUTPUT->table($table);
echo $OUTPUT->paging_bar(moodle_paging_bar::make($count, $page, $this->perpage, $CFG->wwwroot.'/comment/index.php'));
}
/**
* delete a comment
* @param int $commentid
*/
public function delete_comment($commentid) {
global $DB;
if ($comment = $DB->get_record('comments', array('id'=>$commentid))) {
return $DB->delete_records('comments', array('id'=>$commentid));
}
return false;
}
/**
* delete comments
* @param int $commentid
*/
public function delete_comments($list) {
global $DB;
$ids = explode('-', $list);
foreach ($ids as $id) {
if (is_int((int)$id)) {
if ($comment = $DB->get_record('comments', array('id'=>$id))) {
$DB->delete_records('comments', array('id'=>$comment->id));
}
}
}
return true;
}
}