ec.js

  saveVote: task(function * () {
    var queueVotes = this.get('voteItems').map(item => {
      item.set('isSelected', false);
      let itemId = item.get('id');
      let itemTitle = item.get('title');
      let itemImage = item.get('fieldImage.url');
      let currentCampaign = this.get('campaign.id');
      let newVote= this.store.createRecord('node--vote', {
        title: itemTitle,
        fieldItemid: itemId,
        fieldCampaignid: currentCampaign,
        fieldImageUrl: itemImage
      });
    });
    yield queueVotes.save()
    yield timeout(DEBOUNCE_TIMEOUT);
    return {};
  }).enqueue().maxConcurrency(1),