public function getUsersForRole($role, $withAdmin = false)
    {
        $query = $this->userModel->query()
            ->orderBy('email')
            ->whereHas('roles', function ($query) use ($role) {
                $query->where('slug', $role);
            });

        if ( ! $withAdmin) {
            $query->where('is_superadmin', false);
        }

        return $query->get();
    }