Vfrdtyky

I want to add the creation date to results returned by mongoose. I know the _id property of a mongodb record has the creation date embedded in it, but I'm not sure how to add it to the result set so that I can use it in my client side application.

Any ideas on how to add that property dynamically to the results set?

If you are willing to use _id's timestamp as the date created

var fooSchema = new Schema({

      name: String,

      ... 

},

{

  toObject: { virtuals: true },

  toJSON: { virtuals: true }

}

)





fooSchema.virtual('created')

  .get(function(){ 

     return this._id.getTimestamp();

  });

You can access the field created to get the timestamp.
The toObject(doc) and toJson(doc) options are used to keep our virtual field(created) when converting from a mongoose document. Using toJson might suffice I guess, depends on your usage.

If you are not willing to use _id's timestamp(there are many arguments that it is not advisable when operating across multiple instances), you can put it in a separate field like

var fooSchema = new Schema({

      name: String,

      created:  {type: Date, default: Date.now},

});

This will set created to the timestamp the object is first saved.

I prefer the second way of ma08.Add a created field and use the default value to Date.now.This method automatically creates the current date as the created date.

var nSchema=new Schema({

name:String,

...

created: {type:Date, default:Date.now},

...



});

Mongoose can do it for you automatically. according to timestamp option in Mongoose just do something like this :

var nSchema=new Schema({

   name:String,

   ...

    timestamps: { createdAt: 'created_at' },

   ...

});

also you can track for update with updateAt