Mongodb聚合，在子文档上使用过滤器

Question

我的前端将发送该搜索对象，“ {{deckStatus：” Vacant“，awayStatus：null}或{deckStatus：null，awayStatus：null}等。

我想制作一个健壮的过滤器，该过滤器将根据状态和状态（基于发送的内容）在卡座数组上过滤（仅选择状态为“已占用”或“状态为空”是空置的对象，这是我的文档。）< / p>

// continuing the previous promise chain:
  .then((queueId) => convertQueueIdToBuildId(jenkins, jobName, queueId, 5000))
  .then((buildId) => waitForJobToFinish(jenkins, jobName, buildId, 5000))
  .catch(printErrorAndExit);

function convertQueueIdToBuildId(jenkins, jobName, queueId, interval, spinner) {
  return convertQueueIdToBuildIdInner(queueId)
    .then((data) => {
      if (isNumber(data)) {
        return data;
      }

      return waitFor(interval)
        .then(() => convertQueueIdToBuildId(jenkins, jobName, queueId, interval, spinner));
    });

  function convertQueueIdToBuildIdInner(queueId) {
    return new Promise((resolve, reject) => {
      jenkins.queue.item(queueId, (err, data) => {
        if (err) {
          return reject(err);
        }

        resolve(data && data.executable && data.executable.number);
      });
    });
  }
}

function waitForJobToFinish(jenkins, jobName, buildId, interval) {
  return waitForJobToFinishInner(jobName)
    .then((data) => {
      if ('SUCCESS' === data.result) {
        return data;
      }

      if (['ABORTED', 'FAILURE'].indexOf(data.result) > -1) {
        const errorMessage = `JENKINS[${ jobName }:${ buildId }] job ${ data.result }`;
        throw new Error(errorMessage);
      }

      return waitFor(interval)
        .then(() => waitForJobToFinish(jenkins, jobName, buildId, interval));
    });

  function waitForJobToFinishInner(jobName) {
    return new Promise((resolve, reject) => {
      jenkins.build.get(jobName, buildId, function (err, data) {
        if (err) {
          return reject(err);
        }

        resolve(data);
      });
    });
  }
}

function waitFor(interval) {
  return new Promise((resolve) => setTimeout(() => resolve(), interval));
}

使用过滤器，我很难获取状态值，该状态值是数组内部的对象。