流星发布:隐藏数组文档字段中的某些字段? [英] Meteor publication: Hiding certain fields in an array document field?

问题描述

我有一个包含以下文档的集合:

I have a collection with documents like this:

{
    _id: af3F3afafaa,
    firstName: "John",
    family: [{name: "David", relation: "brother", alive: true},
             {name: "Susan", relation: "mother", alive: false}]
}

有没有办法编写一个隐藏家庭字段数组中的字段的出版物?因此，如果我订阅了该出版物，我会得到:

Is there a way to write a publication that hides a field in the family field array? So if I subscribed to the publication I would get:

    {
    _id: af3F3afafaa,
    firstName: "John",
    family: [{name: "David", alive: true},
             {name: "Susan", alive: false"}]
    }

推荐答案

根据Meteor docs，这样的事情可以工作:

According to the Meteor docs, something like this could work:

Meteor.publish('family', function(famId) {
  return Families.find(famId, {
    fields : {
      "family.relation" : 0 //Exclude family.relation from the sent data
    }
  });
});

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