text: const mongoose = require('mongoose');
  
  const trackSchema = new mongoose.Schema({
    userId : {
      type: mongoose.Schema.Types.ObjectId,
      ref: 'User'
    },
    trackNum : {
      type : Number
    },
    status : {
      type : String
    },
    lastUpdate : {
      type : String
    },
    nextDeadline : {
      type : String
    },
    img : {
      type : String
    }
  });
  
  mongoose.model('Track', trackSchema);
  