definma-api/src/models/model.ts

import mongoose from 'mongoose';
import db from '../db';

const ModelSchema = new mongoose.Schema({
  group: {type: String, index: {unique: true}},
  models: [new mongoose.Schema({
    name: {type: String, index: {unique: true}},
    url: String,
    label: String
  } ,{ _id : false })]
});

// changelog query helper
ModelSchema.query.log = function <Q extends mongoose.DocumentQuery<any, any>> (req) {
  db.log(req, this);
  return this;
}
ModelSchema.index({group: 1});

export default mongoose.model<any, mongoose.Model<any, any>>('model', ModelSchema);