const mongoose = require('mongoose'); //const Schema = mongoose.Schema, //ObjectId = Schema.ObjectId; const MessageSchema = mongoose.Schema({ subject: { type: String, required: true }, message: { type: String, required: true }, user: { type: String, required: true }, tag: [{type: String, index: true }], //createtime: { type: Date, default: Date.now }, }); module.exports = mongoose.model('Message', MessageSchema);