private function sanitize()
{
if (false === ($this->pm = GWF_PM::getByID(Common::getGet('pmid')))) {
return $this->module->error('err_pm');
}
if ($this->pm->isRead()) {
return $this->module->error('err_pm_read');
}
if (false === $this->pm->canEdit(GWF_Session::getUser())) {
return $this->module->error('err_perm_write');
}
return false;
}