function local_mail_add_recipients($message, $recipients, $role) {
global $DB;
$context = context_course::instance($message->course()->id);
$groupid = 0;
$severalseparategroups = false;
$roles = array('to', 'cc', 'bcc');
$role = ($role >= 0 and $role < 3) ? $role : 0;
if ($message->course()->groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
$groups = groups_get_user_groups($message->course()->id, $message->sender()->id);
if (count($groups[0]) == 0) {
return;
} else if (count($groups[0]) == 1) {// Only one group
$groupid = $groups[0][0];
} else {
$severalseparategroups = true;// Several groups
}
}
// Make sure recipients ids are integers
$recipients = clean_param_array($recipients, PARAM_INT);
$participants = array();
list($select, $from, $where, $sort, $params) = local_mail_getsqlrecipients($message->course()->id, '', $groupid, 0, implode(',', $recipients));
$rs = $DB->get_recordset_sql("$select $from $where $sort", $params);
foreach ($rs as $rec) {
if (!array_key_exists($rec->id, $participants)) {// Avoid duplicated users
if ($severalseparategroups) {
$valid = false;
foreach ($groups[0] as $group) {
$valid = $valid || groups_is_member($group, $rec->id);
}
if (!$valid) {
continue;
}
}
$message->add_recipient($roles[$role], $rec->id);
$participants[$rec->id] = true;
}
}
$rs->close();
}
function local_mail_updaterecipients($message, $recipients, $roles)
{
global $DB;
$context = context_course::instance($message->course()->id);
$groupid = 0;
$severalseparategroups = false;
if ($message->course()->groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
$groups = groups_get_user_groups($message->course()->id, $message->sender()->id);
if (count($groups[0]) == 0) {
return array('msgerror' => '', 'info' => '', 'html' => '', 'redirect' => 'ok');
} else {
if (count($groups[0]) == 1) {
// Only one group
$groupid = $groups[0][0];
} else {
$severalseparategroups = true;
// Several groups
}
}
}
// Make sure recipients ids are integers
$recipients = clean_param_array($recipients, PARAM_INT);
foreach ($recipients as $key => $recipid) {
$roleids[$recipid] = isset($roles[$key]) ? clean_param($roles[$key], PARAM_INT) : false;
}
$participants = array();
list($select, $from, $where, $sort, $params) = local_mail_getsqlrecipients($message->course()->id, '', $groupid, 0, implode(',', $recipients));
$rs = $DB->get_recordset_sql("{$select} {$from} {$where} {$sort}", $params);
foreach ($rs as $rec) {
if (!array_key_exists($rec->id, $participants)) {
// Avoid duplicated users
if ($severalseparategroups) {
$valid = false;
foreach ($groups[0] as $group) {
$valid = $valid || groups_is_member($group, $rec->id);
}
if (!$valid) {
continue;
}
}
$role = false;
if ($roleids[$rec->id] === 0) {
$role = 'to';
} else {
if ($roleids[$rec->id] === 1) {
$role = 'cc';
} else {
if ($roleids[$rec->id] === 2) {
$role = 'bcc';
}
}
}
if ($message->has_recipient($rec->id)) {
$message->remove_recipient($rec->id);
}
if ($role) {
$message->add_recipient($role, $rec->id);
}
$participants[$rec->id] = true;
}
}
$rs->close();
return array('msgerror' => '', 'info' => '', 'html' => '', 'redirect' => 'ok');
}
