public function export_for_template(\renderer_base $output)
{
global $USER;
$context = clone $this->notification;
if ($context->useridto == $USER->id && $context->timeusertodeleted) {
$context->deleted = true;
} else {
$context->deleted = false;
}
$context->timecreatedpretty = get_string('ago', 'message', format_time(time() - $context->timecreated));
$context->text = message_format_message_text($context);
$context->read = $context->timeread ? true : false;
$context->shortenedsubject = shorten_text($context->subject, 125);
if (!empty($context->component) && substr($context->component, 0, 4) == 'mod_') {
$iconurl = $output->pix_url('icon', $context->component);
} else {
$iconurl = $output->pix_url('i/marker', 'core');
}
$context->iconurl = $iconurl->out();
return $context;
}
/**
* Get messages function implementation.
*
* @since 2.8
* @throws invalid_parameter_exception
* @throws moodle_exception
* @param int $useridto the user id who received the message
* @param int $useridfrom the user id who send the message. -10 or -20 for no-reply or support user
* @param string $type type of message to return, expected values: notifications, conversations and both
* @param bool $read true for retreiving read messages, false for unread
* @param bool $newestfirst true for ordering by newest first, false for oldest first
* @param int $limitfrom limit from
* @param int $limitnum limit num
* @return external_description
*/
public static function get_messages($useridto, $useridfrom = 0, $type = 'both', $read = true, $newestfirst = true, $limitfrom = 0, $limitnum = 0)
{
global $CFG, $USER;
$warnings = array();
$params = array('useridto' => $useridto, 'useridfrom' => $useridfrom, 'type' => $type, 'read' => $read, 'newestfirst' => $newestfirst, 'limitfrom' => $limitfrom, 'limitnum' => $limitnum);
$params = self::validate_parameters(self::get_messages_parameters(), $params);
$context = context_system::instance();
self::validate_context($context);
$useridto = $params['useridto'];
$useridfrom = $params['useridfrom'];
$type = $params['type'];
$read = $params['read'];
$newestfirst = $params['newestfirst'];
$limitfrom = $params['limitfrom'];
$limitnum = $params['limitnum'];
$allowedvalues = array('notifications', 'conversations', 'both');
if (!in_array($type, $allowedvalues)) {
throw new invalid_parameter_exception('Invalid value for type parameter (value: ' . $type . '),' . 'allowed values are: ' . implode(',', $allowedvalues));
}
// Check if private messaging between users is allowed.
if (empty($CFG->messaging)) {
// If we are retreiving only conversations, and messaging is disabled, throw an exception.
if ($type == "conversations") {
throw new moodle_exception('disabled', 'message');
}
if ($type == "both") {
$warning = array();
$warning['item'] = 'message';
$warning['itemid'] = $USER->id;
$warning['warningcode'] = '1';
$warning['message'] = 'Private messages (conversations) are not enabled in this site.
Only notifications will be returned';
$warnings[] = $warning;
}
}
if (!empty($useridto)) {
if (core_user::is_real_user($useridto)) {
$userto = core_user::get_user($useridto, '*', MUST_EXIST);
} else {
throw new moodle_exception('invaliduser');
}
}
if (!empty($useridfrom)) {
// We use get_user here because the from user can be the noreply or support user.
$userfrom = core_user::get_user($useridfrom, '*', MUST_EXIST);
}
// Check if the current user is the sender/receiver or just a privileged user.
if ($useridto != $USER->id and $useridfrom != $USER->id and !has_capability('moodle/site:readallmessages', $context)) {
throw new moodle_exception('accessdenied', 'admin');
}
// Which type of messages to retrieve.
$notifications = -1;
if ($type != 'both') {
$notifications = $type == 'notifications' ? 1 : 0;
}
$orderdirection = $newestfirst ? 'DESC' : 'ASC';
$sort = "mr.timecreated {$orderdirection}";
if ($messages = message_get_messages($useridto, $useridfrom, $notifications, $read, $sort, $limitfrom, $limitnum)) {
$canviewfullname = has_capability('moodle/site:viewfullnames', $context);
// In some cases, we don't need to get the to/from user objects from the sql query.
$userfromfullname = '';
$usertofullname = '';
// In this case, the useridto field is not empty, so we can get the user destinatary fullname from there.
if (!empty($useridto)) {
$usertofullname = fullname($userto, $canviewfullname);
// The user from may or may not be filled.
if (!empty($useridfrom)) {
$userfromfullname = fullname($userfrom, $canviewfullname);
}
} else {
// If the useridto field is empty, the useridfrom must be filled.
$userfromfullname = fullname($userfrom, $canviewfullname);
}
foreach ($messages as $mid => $message) {
// Do not return deleted messages.
if ($useridto == $USER->id and $message->timeusertodeleted or $useridfrom == $USER->id and $message->timeuserfromdeleted) {
unset($messages[$mid]);
continue;
}
// We need to get the user from the query.
if (empty($userfromfullname)) {
// Check for non-reply and support users.
if (core_user::is_real_user($message->useridfrom)) {
$user = new stdClass();
$user = username_load_fields_from_object($user, $message, 'userfrom');
$message->userfromfullname = fullname($user, $canviewfullname);
} else {
$user = core_user::get_user($message->useridfrom);
$message->userfromfullname = fullname($user, $canviewfullname);
}
} else {
$message->userfromfullname = $userfromfullname;
}
// We need to get the user from the query.
if (empty($usertofullname)) {
$user = new stdClass();
$user = username_load_fields_from_object($user, $message, 'userto');
$message->usertofullname = fullname($user, $canviewfullname);
} else {
$message->usertofullname = $usertofullname;
}
// This field is only available in the message_read table.
if (!isset($message->timeread)) {
$message->timeread = 0;
}
$message->text = message_format_message_text($message);
$messages[$mid] = (array) $message;
}
}
$results = array('messages' => $messages, 'warnings' => $warnings);
return $results;
}
/**
* Format a message for display in the message history
*
* @param object $message the message object
* @param string $format optional date format
* @param string $keywords keywords to highlight
* @param string $class CSS class to apply to the div around the message
* @return string the formatted message
*/
function message_format_message($message, $format='', $keywords='', $class='other') {
static $dateformat;
//if we haven't previously set the date format or they've supplied a new one
if ( empty($dateformat) || (!empty($format) && $dateformat != $format) ) {
if ($format) {
$dateformat = $format;
} else {
$dateformat = get_string('strftimedatetimeshort');
}
}
$time = userdate($message->timecreated, $dateformat);
$messagetext = message_format_message_text($message, false);
if ($keywords) {
$messagetext = highlight($keywords, $messagetext);
}
$messagetext .= message_format_contexturl($message);
$messagetext = clean_text($messagetext, FORMAT_HTML);
return <<<TEMPLATE
<div class='message $class'>
<a name="m{$message->id}"></a>
<span class="message-meta"><span class="time">$time</span></span>: <span class="text">$messagetext</span>
</div>
TEMPLATE;
}
/**
* Helper function to return an array of messages.
*
* @param int $userid
* @param array $messages
* @return array
*/
public static function create_messages($userid, $messages)
{
// Store the messages.
$arrmessages = array();
// We always view messages from oldest to newest, ensure we have it in that order.
$lastmessage = end($messages);
$firstmessage = reset($messages);
if ($lastmessage->timecreated < $firstmessage->timecreated) {
$messages = array_reverse($messages);
}
// Keeps track of the last day, month and year combo we were viewing.
$day = '';
$month = '';
$year = '';
foreach ($messages as $message) {
// Check if we are now viewing a different block period.
$displayblocktime = false;
$date = usergetdate($message->timecreated);
if ($day != $date['mday'] || $month != $date['month'] || $year != $date['year']) {
$day = $date['mday'];
$month = $date['month'];
$year = $date['year'];
$displayblocktime = true;
}
// Store the message to pass to the renderable.
$msg = new \stdClass();
$msg->id = $message->id;
$msg->text = message_format_message_text($message);
$msg->currentuserid = $userid;
$msg->useridfrom = $message->useridfrom;
$msg->useridto = $message->useridto;
$msg->displayblocktime = $displayblocktime;
$msg->timecreated = $message->timecreated;
$msg->timeread = $message->timeread;
$arrmessages[] = $msg;
}
return $arrmessages;
}
