流星出版物：隐藏数组文档字段中的某些字段？

Question

我有一个包含这样文件的集合：

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

有没有办法编写隐藏字段数组中字段的出版物？所以，如果我订阅了该出版物，我会得到：

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

Answer 1

根据Meteor docs，这样的事情可以起作用：

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