definma-api/src/models/sample.ts

import mongoose from 'mongoose';

import MaterialModel from './material';
import NoteModel from './note';
import UserModel from './user';

const SampleSchema = new mongoose.Schema({
  number: {type: String, index: {unique: true}},
  type: String,
  color: String,
  batch: String,
  condition: mongoose.Schema.Types.Mixed,
  material_id: {type: mongoose.Schema.Types.ObjectId, ref: MaterialModel},
  note_id: {type: mongoose.Schema.Types.ObjectId, ref: NoteModel},
  user_id: {type: mongoose.Schema.Types.ObjectId, ref: UserModel},
  status: Number
}, {minimize: false});

export default mongoose.model('sample', SampleSchema);