Whats the reason for not being able to nest Schemas without an array

Question

Whats the reason for not being able to nest Schemas without an array

I was just wondering why something like this isn't allowed in mongoose schema definitions:

var NameSchema = new mongoose.Schema({
  first: {type: String, trim: true },
  last: {type: String, trim: true }
});

var UserSchema = new mongoose.Schema({
  name: NameSchema,          // this line causes an error
  age: {type: Number}
});

It seems like a design decision, I was just wondering if I could get an explanation as to why it isn't supported

Thanks!

javascript
node.js
mongodb
mongoose

Answer 1

You can nest a schema using this method:

name: [{ some: "props" } ]

or

name: [NameSchema]

The problem with giving directly the schema definition (without using "type: ...") is that Mongoose can't make the difference between the option object and the schema object. Mongoose will think that NameSchema is actually an option object (containing options such as the type, trim...).