具有异步嵌套主题的誓言 - 范围问题

Question

我希望我的誓言可以从我的主题访问outerDocs和innerDocs，但事实并非如此。

'ASYNC TOPIC': {
  topic: function() {
    aModel.find({}, this.callback);
  },
  'NESTED ASYNC TOPIC': {
    topic: function(outerDocs) {
      anotherModel.find({}, this.callback(null, innerDocs, outerDocs));
    },
    'SHOULD HAVE ACCESS TO BOTH SETS OF DOCS': function(err, innerDocs, outerDocs) {
      console.log(err, innerDocs, outerDocs);
      return assert.equal(1, 1);
    }
  }

我做错了什么？

Answer 1

你不能像这样设置回调参数，find函数会自己做。这样做：

topic: function(outerDocs) {
  var self = this;
  anotherModel.find({}, function(err, docs) {
    self.callback(err, docs, outerDocs);
  });
},