letu/models/index.js

"use strict";

const fs = require("fs");
const path = require("path");
const Sequelize = require("sequelize");
const basename = path.basename(__filename);
const config = require(__dirname + "/../config/config.json")["database"];
const db = {};

let sequelize;
if (process.env.NODE_ENV === "test")
  sequelize = new Sequelize("sqlite::memory:");
else
  sequelize = new Sequelize(require(__dirname + "/../config/config.json").database);

fs
  .readdirSync(__dirname)
  .filter(file => {
    return (file.indexOf(".") !== 0) && (file !== basename) && (file.slice(-3) === ".js");
  })
  .forEach(file => {
    const model = sequelize["import"](path.join(__dirname, file));
    db[model.name] = model;
  });

Object.keys(db).forEach(modelName => {
  if (db[modelName].associate) {
    db[modelName].associate(db);
  }
});

db.sequelize = sequelize;
db.Sequelize = Sequelize;

module.exports = db;