text: const User = require('./user')
  const Product = require('./product')
  const Order = require('./order')
  const OrderItem = require('./orderItem')
  
  Order.belongsTo(User)
  User.hasMany(Order)
  
  Order.belongsToMany(Product, {through: {model: OrderItem}})
  Product.belongsToMany(Order, {through: {model: OrderItem}})
  
  module.exports = {
    User,
    Product,
    Order,
    OrderItem
  }
  