Node.js:文档返回未定义 - Mongoose
Phone.find {number : "12345678"}, (err,phone) ->
phone.forEach (item, i) ->
console.log item
console.log item.subdomain
console.log item.subdomain_id
console.log item.city
returns:
{ _id: 4e9b614e01c642c2be000002,
city: 'San Francisco',
country: 'US',
indicative: '234',
number: '12345678',
subdomain_id: 4e9b532b01c642bf4a000003 }
undefined
undefined
San Francisco
Why is the item.subdomain_id
returning undefined if it's in the document?
Edit:
I added subdomain_id to the Schema and it now works (item.subdomain_id), however, I'm not getting the subdomain document, only the ID. I want to get item.subdomain
and be able to call methods on it.
Thanks
解决方案So I was just searching for an answer to the same question. What I was doing was using Mongoose's find (through object inheritance), in order to use a json find query.
What it looked like was this:
User.find({email:req.body.email}).exec(function(err,user){
console.log(user.email);
}
What I forgot about and hadn't considered is that the return object will be an Array. This is because your find query can easily and often does include multiple objects. Because of this, you will either need to enumerate your results, or if your query is only expected to findOne (and we didn't use findOne), you can simply call object 0 like so:
User.find({email:req.body.email}).exec(function(err,user){
console.log(user[0].email);
}
I hope this helps, let us know if you are still having trouble.
相关文章