Question

CONTEXT

我使用Mantra架构与Meteor 1.3和Astronomy来管理我的馆藏。我试图通过Meteor回调函数传递插入对象的id，以便在我的容器中使用它。

问题当我在控制台中记录元素时，我得到了正确的ID，但在尝试控制台从较高层（从保存我的动作调用Meteor方法调用的文件）进行控制时，得到了未定义的ID。然后我需要将它从我的动作传递给使用它的Container。

方法（在服务器上）

export default function () {
  Meteor.methods({
    'condition.create'(conditionTitle, conditionType, segmentId) {

      const condition = new Conditions();

      // Show the latency compensations
      Meteor._sleepForMs(500);

      // XXX: Do some user authorization
      // website._id = _id;
      condition.conditionTitle = conditionTitle;
      condition.segmentId = segmentId;
      condition.conditionType = conditionType;


      condition.save(function(err, id) {

        const conditionId = id;
        return conditionId;

      });


    }
  });

}

操作文件（调用的地方 - 客户端）

export default {
  create({Meteor, LocalState, FlowRouter}, conditionTitle, conditionType, segmentId) {
    LocalState.set('CREATE_CONDITION_ERROR', null);

    if (!conditionTitle) {
      return LocalState.set('CREATE_CONDITION_ERROR', 'Condition Title is required!');
    }

    if (!conditionType) {
      return LocalState.set('CREATE_CONDITION_ERROR', 'Condition Type is required!');
    }


    if (!segmentId) {
    return LocalState.set('CREATE_CONDITION_ERROR', 'segmentId is required.');
    }

    LocalState.set('CREATE_CONDITION_ERROR', null);




    Meteor.call('condition.create', conditionTitle, conditionType, segmentId, function(err, conditionId) {

        if (err) {
          return LocalState.set('CREATE_CONDITION_ERROR', err.message);
        } else {
          console.log("method" + conditionId);
        }
    });

  },

  clearErrors({LocalState}) {
    return LocalState.set('CREATE_CONDITION_ERROR', null);
  }
};

容器（客户端上的部分代码段 - 这是我需要使用conditionId的地方）

onSubmit(event) {
    event.preventDefault;
    const {create, segmentId} = this.props;
    const conditionTitle = this.state.conditionTitle;
    const conditionType = this.state.conditionType;

    create(conditionTitle, conditionType, segmentId, function(conditionId) {

      console.log(conditionId);

    });


  }

Answer 1

这个问题与Mantra没有任何关系。我在Astronomy .save函数中返回插入的对象，但没有将该值传递给整个Meteor方法。因此未定义。

这是服务器上的正确方法：

Meteor.methods({
    'condition.create'(conditionTitle, conditionType, segmentId) {

      const conditionAstro = new Conditions();

      // Show the latency compensations
      Meteor._sleepForMs(500);

      // XXX: Do some user authorization
      // website._id = _id;
      conditionAstro.conditionTitle = conditionTitle;
      conditionAstro.segmentId = segmentId;
      conditionAstro.conditionType = conditionType;


      const condition = conditionAstro.save(function(err, id) {

        // const conditionId = id;
        console.log(id);
        return id;

      });

      return condition;


    }
  });

用Mantra传递流星回调方法的价值

1 个答案: