espaco2

class Inviter {
  constructor() {
    // this.groupId = groupId;
    // this.userId = userId;
    this.GruposPool = bookshelf.Model.extend({
      tableName: 'MensageriaExternaGrupoPool'
    });

    bookshelf.transaction((t) => {
      new this.GruposPool().where({disponivel: true}).orderBy('id', 'ASC').fetchAll().then(grupos => {
        if (grupos.toJSON().length > 0) {
          let grupo = grupos.last().toJSON();
          return new this.GruposPool({id: grupo.id}).save({disponivel: false},
            {transacting: t, patch: true});
        } else {
          logger.info('There are no groups available. ' +
              'Update not executed.');
        }
      })
      .then((savedModel) => {
        logger.info('Done!');
        t.commit(savedModel);
      })
      .catch(error => {
        logger.info(`Rollback! ${error}`);
        t.rollback(error);
      });
    });
  }
}