Default values not adding to mongoose Model-CodePudding

So this is an example of my schema I have for a user.

    id: String,
    email: String,
    slug: {
        type: Object,
        phrase: {type: String, default: null},
    },

When I want to define a new user and save that user, I would do the following;

const newUser = new User({
   id: 123,
   username: "CoolUser",
   email: "[email protected]"
});
                
newUser.save();

But this does not save the "slug" object, It was my understanding, that since I a default value for it, it would auto populate with that default value. What can I do to make it auto generate without having to define the whole schema again when saving a user?

CodePudding user response：

You should add default for slug property, and not for his sub-property. Try changing your schema like this:

slug: {
  type: {
    phrase: { type: String },
  },
  default: {
    phrase: null 
  },
},

CodePudding user response：

try this:

const subschema = new Schema({
  phrase: {type: String, default: null},
}, { _id: false });

and in your original schema:

  id: String,
  email: String,
  slug: {
    type: subschema,
    default: () => ({})
  },

this should do the trick.