function validation($data, $files)
{
global $DB;
$errors = parent::validation($data, $files);
$scuser = new mod_opencast_user();
if ($data['channelnew'] == OPENCAST_CHANNEL_NEW) {
if ($scuser->getExternalAccount() == '') {
$errors['channelnew'] = get_string('user_notaai', 'opencast');
}
if (!$data['newchannelname']) {
$errors['newchannelname'] = get_string('required');
}
}
if ($data['channelnew'] == OPENCAST_CHANNEL_EXISTING) {
// make sure we can be external_authority for this channel
$scobj = new mod_opencast_series();
$ext_id = isset($data['ext_id']) ? $data['ext_id'] : $this->current->ext_id;
$scobj->setExtId($ext_id);
$sysaccount_extid = mod_opencast_series::getSysAccountOfUser();
// we must explicitly set $USER as a producer in $scobj or we won't be allowed to add his system_user
$scobj->setOrganizationDomain(mod_opencast_series::getOrganizationByEmail($sysaccount_extid));
$scobj->setProducer($scuser->getExternalAccount());
// first, add SysAccount as producer (using $USER account), so we can use SysAccount later to make API calls
// $scobj->addProducer($sysaccount_extid, false);
$channelid = empty($this->_instance) ? $ext_id : $this->current->id;
// if there already is one instance we must refer to it by its Moodle ID otherwise there could
// be several records!
$thechannel = $scobj->fetch($channelid, !empty($this->_instance), true);
} else {
if ($data['groupmode'] != NOGROUPS && !$data['is_ivt']) {
$errors['groupmode'] = get_string('nogroups_withoutivt', 'opencast');
}
}
return $errors;
}
