laud_sec_api/modules/v1/models/Red.php

<?php

namespace v1\models;

use app\models\Red as ModelsRed;

class Red extends ModelsRed {

  public function fields() { 
    return [
      'idEvento',
      'key',
      'url',
      'redSocial',
    ];
  }

  public function extraFields() { 
    return [
      'evento'
    ];
  }

  public function getEvento() {
    return $this->hasOne(Evento::class, ['id' => 'idEvento']);
  }
}