Mongoose schema field names and types with subdocs

Question

I'm building an object of field names and their types from my schema:

var ret = {};
ThisCollection.schema.eachPath(function(path) {
  ret[path] = ThisCollection.schema.path(path).instance;
});

Which is great unless there's a nested array in the schema. I can't seem to figure out how to access the subdocument and its fields' types. I've tried:

ThisCollection.schema.path("dot.notation").instance

within a recursive function building out the dot notation name of a deeper path. This does not appear to work.

Example schema:

 var Person = new Schema({
    person_code: String, 
    person_name: String, 
    location_details:[{
        location_name: String,
        location_code: String
    }]
});

To be clear, I'm looking for my return object to match my schema in structure as well, so that nested schemas are nested objects in my return object, something like:

{
    person_code: String,
    person_name: String,
    location_details:{
        location_name: String,
        location_code: String
    }
}

Answer 1

The simplest solution may be to simply save off the schema definition object you're using to create your schema:

var personSchemaDef = {
    person_code: String,
    person_name: String,
    location_details: [{
        location_name: String,
        location_code: String
    }]
};
var personSchema = new Schema(personSchemaDef);
var Person = mongoose.model('person', personSchema, 'people');

But you can also get the hierarchical details of the schema from the tree property of the schema:

console.log(Person.schema.tree)

Output:

{ person_code: [Function: String],
  person_name: [Function: String],
  location_details:
   [ { location_code: [Function: String],
       location_name: [Function: String] } ],
  _id:
   { type: { [Function: ObjectId] schemaName: 'ObjectId' },
     auto: true },
  id:
   VirtualType {
     path: 'id',
     getters: [ [Function: idGetter] ],
     setters: [],
     options: {} },
  __v: [Function: Number] }