/**
* @return string HTML
*/
public function getProjectMenu()
{
$data = $this->data;
$projects = Graphite::getProjects();
return '<select name="project" required class="form-control nagf-select-project">' . '<option value="" disabled>Select project</option>' . implode('', array_map(function ($project) use($data) {
return '<option' . ($project === $data->project ? ' selected' : '') . '>' . htmlspecialchars($project) . '</option>';
}, $projects)) . '</select>';
}