/**
* Remove a list of users from a given meeting. Also handles removing the
* calendar event and any assosciated reminders for the user. This action
* can only occur with a private meeting.
*
* If $moderators is not set to true, the users will be removed from the
*
* @param object $meeting The Blackboard Collaborate activity database record.
* @param array $userids A list of Moodle user IDs to remove from the meeting.
* @param int $groupid The group ID this is specifically for.
* @param boolean $moderators True if the users being removed are moderators.
* @param boolean $force Whether to force an override of the behviour for not deleting the meeting creator.
* @return boolean True on success, False otherwise.
*/
function elluminate_del_users($meeting, $userids, $groupid = 0, $moderators = false)
{
global $DB;
$elluminate = $DB->get_record('elluminate', array('id' => $meeting->id));
if ($meeting->groupmode == 0) {
$cm = get_coursemodule_from_instance('elluminate', $meeting->id, $meeting->course);
} else {
if ($meeting->groupparentid != 0) {
$cm = get_coursemodule_from_instance('elluminate', $meeting->groupparentid, $meeting->course);
} else {
$cm = get_coursemodule_from_instance('elluminate', $meeting->id, $meeting->course);
}
}
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$timenow = time();
$muserids = array();
/// Remove each user from the meeting on the Blackboard Collaborate server.
foreach ($userids as $userid) {
if ($userid != $meeting->creator) {
$muserids[] = $userid;
if (!elluminate_delete_participant($elluminate->id, $userid)) {
return false;
}
}
}
if (!empty($elluminate->meetingid)) {
$args[0]['name'] = 'meetingId';
$args[0]['value'] = $elluminate->meetingid;
$args[0]['type'] = 'xsd:int';
$args[1]['name'] = 'chairList';
$args[1]['value'] = $elluminate->chairlist;
$args[1]['type'] = 'xsd:string';
$args[2]['name'] = 'nonChairList';
$args[2]['value'] = $elluminate->nonchairlist;
$args[2]['type'] = 'xsd:string';
$result = elluminate_send_command('setMeeting', $args);
}
if (empty($muserids)) {
return true;
}
/// Delete user events.
if (count($muserids) > 1) {
$select = "modulename = 'elluminate' AND instance = " . $meeting->id . " AND userid IN (" . implode(',', $muserids) . ");";
return $DB->delete_records_select('event', $select);
} else {
return $DB->delete_records('event', array('modulename' => 'elluminate', 'instance' => $meeting->id, 'userid' => $userid));
}
}
/**
* Remove a list of users from a given meeting. Also handles removing the
* calendar event and any assosciated reminders for the user. This action
* can only occur with a private meeting.
*
* If $moderators is not set to true, the users will be removed from the
*
* @param object $meeting The Elluminate Live! activity database record.
* @param array $userids A list of Moodle user IDs to remove from the meeting.
* @param int $groupid The group ID this is specifically for.
* @param boolean $moderators True if the users being removed are moderators.
* @param boolean $force Whether to force an override of the behviour for not deleting the meeting creator.
* @return boolean True on success, False otherwise.
*/
function elluminate_del_users($meeting, $userids, $groupid = 0, $moderators = false)
{
$elluminate = get_record('elluminate', 'id', $meeting->id);
if ($meeting->groupmode == 0) {
$cm = get_coursemodule_from_instance('elluminate', $meeting->id, $meeting->course);
} else {
if ($meeting->groupparentid != 0) {
$cm = get_coursemodule_from_instance('elluminate', $meeting->groupparentid, $meeting->course);
} else {
$cm = get_coursemodule_from_instance('elluminate', $meeting->id, $meeting->course);
}
}
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
//$session = get_record('elluminate_session', 'elluminate', $meeting->id);
$timenow = time();
$muserids = array();
if ($moderators) {
$role = get_record('role', 'shortname', 'elluminatemoderator');
} else {
$role = get_record('role', 'shortname', 'elluminateparticipant');
}
/// Remove each user from the meeting on the Elluminate Live! server.
foreach ($userids as $userid) {
if ($userid != $meeting->creator) {
if (!role_unassign($role->id, $userid, $groupid, $context->id)) {
continue;
}
$muserids[] = $userid;
if (!elluminate_delete_participant($elluminate->id, $userid)) {
return false;
}
}
}
if (!empty($elluminate->meetingid)) {
$args[0]['name'] = 'meetingId';
$args[0]['value'] = $elluminate->meetingid;
$args[0]['type'] = 'xsd:int';
$args[1]['name'] = 'chairList';
$args[1]['value'] = $elluminate->chairlist;
$args[1]['type'] = 'xsd:string';
$args[2]['name'] = 'nonChairList';
$args[2]['value'] = $elluminate->nonchairlist;
$args[2]['type'] = 'xsd:string';
$result = elluminate_send_command('setMeeting', $args);
}
if (empty($muserids)) {
return true;
}
/// Delete user events.
if (count($muserids) > 1) {
$select = "modulename = 'elluminate' AND instance = {$meeting->id} AND " . "userid IN (" . implode(', ', $muserids) . ")";
return delete_records_select('event', $select);
} else {
return delete_records('event', 'modulename', 'elluminate', 'instance', $meeting->id, 'userid', $userid);
}
}
