protected function getFullnameColumn()
    {
        return function ($row) {
            $roles = $row->roles;
            $value = [];

            foreach ($roles as $role) {
                $value[] = app('html')->create('span', e($role->name), [
                    'class' => 'label label-info',
                    'role' => 'role',
                ]);
            }

            return implode('', [
                app('html')->create('strong', e($row->fullname)),
                app('html')->create('br'),
                app('html')->create('span', app('html')->raw(implode(' ', $value)), [
                    'class' => 'meta',
                ]),
            ]);
        };
    }