feat: add db migration config

server/src/db/config/database.js

@@ -0,0 +1,31 @@
+require('dotenv').config({ path: './.env' });
+
+module.exports = {
+  development: {
+    username: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_NAME,
+    host: process.env.DB_HOST,
+    port: process.env.DB_PORT,
+    dialect: 'postgres',
+    logging: console.log,
+  },
+  test: {
+    username: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.TEST_DB_NAME,
+    host: process.env.DB_HOST,
+    port: process.env.DB_PORT,
+    dialect: 'postgres',
+    logging: false,
+  },
+  production: {
+    username: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_NAME,
+    host: process.env.DB_HOST,
+    port: process.env.DB_PORT,
+    dialect: 'postgres',
+    logging: false,
+  }
+};

server/src/db/models/index.js

@@ -0,0 +1,43 @@
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const Sequelize = require('sequelize');
+const process = require('process');
+const basename = path.basename(__filename);
+const env = process.env.NODE_ENV || 'development';
+const config = require('../config/database.js')[env];
+const db = {};
+
+let sequelize;
+if (config.use_env_variable) {
+  sequelize = new Sequelize(process.env[config.use_env_variable], config);
+} else {
+  sequelize = new Sequelize(config.database, config.username, config.password, config);
+}
+
+fs
+  .readdirSync(__dirname)
+  .filter(file => {
+    return (
+      file.indexOf('.') !== 0 &&
+      file !== basename &&
+      file.slice(-3) === '.js' &&
+      file.indexOf('.test.js') === -1
+    );
+  })
+  .forEach(file => {
+    const model = require(path.join(__dirname, file))(sequelize, Sequelize.DataTypes);
+    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;