GroganBurners / ferveo

models/invoice.js

var mongoose = require('mongoose')

This code seems to be duplicated in your project.

var invoiceItem = require('./common/line-item')

var invoiceSchema = new mongoose.Schema({
  date: { type: Date, default: Date.now },
  customer: { type: mongoose.Schema.Types.ObjectId, ref: 'Customer', required: true },
  items: [invoiceItem],
  totalVat: { type: Number, default: 0.00 },
  total: { type: Number, default: 0.00 }
})

invoiceSchema.pre('save', function (next) {
  let overallTotal = 0.00
  // let overallVat
  // All the items should give the total
  for (let item in this.items) {
    overallTotal += item.total
    // overallVat += item.subTotal * item.vatRate
  }

  this.total = overallTotal
  next()
})

module.exports = mongoose.model('Invoice', invoiceSchema)