does mongoose support virtual fields in select like SQL

Question

does mongoose support virtual fields in select like SQL

In SQL I can make the following SELECT statement with the 'status' virtual field:

SELECT 
   CASE 
      WHEN field = 1 THEN 'sale'
      ELSE 'none'
   END as status

Does something like is in mongoose?

sql
node.js
mongodb
express
mongoose

Answer 1

Yes. Mongoose schemas support virtuals. Have a look at the schema section of the guide. I think you may want something like this:

var salesSchema = new Schema({
  sale: Number
});

salesSchema.virtual('status').get(function() {
  if (this.sale === 1) {
    return 'sale';
  } else {
    return 'none';
  }
});