How to use the orm.settings function in orm

/**
 * Object Relational Mapping.
 *
 * @author DarkPark
 * @license GNU GENERAL PUBLIC LICENSE Version 3
 */

'use strict';

var orm = require('orm'),
	db;


// global options
orm.settings.set('connection.debug', false);
orm.settings.set('instance.cache',   false);

// init
//db = orm.connect('sqlite://./db.sqlite');
db = orm.connect('mysql://fortnotes:fortpass@localhost/fortnotes');

db.on('connect', function ( error ) {
	function loadResult ( error ) {
		if ( error ) { throw error; }
	}

	if ( error ) { throw error; }

	db.use(require('orm-transaction'));

	// models

/**
 * Object Relational Mapping.
 *
 * @author DarkPark
 * @license GNU GENERAL PUBLIC LICENSE Version 3
 */

'use strict';

var orm = require('orm'),
	db;


// global options
orm.settings.set('connection.debug', false);
orm.settings.set('instance.cache',   false);

// init
//db = orm.connect('sqlite://./db.sqlite');
db = orm.connect('mysql://fortnotes:fortpass@localhost/fortnotes');

db.on('connect', function ( error ) {
	function loadResult ( error ) {
		if ( error ) { throw error; }
	}

	if ( error ) { throw error; }

	db.use(require('orm-transaction'));

	// models
	db.load('./models/keys',     loadResult);

app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(expressValidator());
app.use(cookieParser());
app.use(session({cookie: { maxAge: 60000 }, secret: 'secret'}));
app.use(flash());
app.use(passport.initialize());
app.use(passport.session());
app.use(express.static(path.join(__dirname, 'public')));

// DB configuration
var sqlite3 = require('sqlite3').verbose();
var db = new sqlite3.Database(settings.db);

orm.settings.set("instance.returnAllErrors", true);
app.use(orm.express(settings.dsn, {
  define: function (db, models, next) {
    db.load("./models", function (err) {
      models.User = db.models.users;
      models.Pad = db.models.pads;
      models.Note = db.models.notes;
      next();
    });
  }
}));

// Flash Messages configuration
app.use(function(req, res, next){
  res.locals.flash_messages = {
    'success': req.flash('success'),
    'error': req.flash('error')

module.exports = function (app) {


    var orm = require("orm"),
        tesla = require('../../lib/tesla')(app),
        teslaDB = require('../../lib/tesla.db')(app),
        enforce = require("enforce"),
        colors = require('colors'),
        db  = orm.connect(app.config.db.url);

    orm.settings.set("instance.returnAllErrors", true);

    // DEFINE MODEL SCHEMA
    // Be sure to add some files to the schema below or you will not have success quering or adding to the database
    var Model = db.define("{model}", {
        created   : { type: "date", time: true },
        updated   : { type: "date", time: true }
        // _id : { type: "text" },
        // name      : { type: "text", required: true },
        // isAdmin : { type: "boolean", defaultValue: false },
    }, {
        validations: {
            // EXAMPLE VALIDATIONS
            // password: orm.enforce.security.password('luns5', 'Passowrd does not meet min security requirements.'),
            // email: orm.enforce.patterns.email('Please enter a valid email address.')
            // More Options : https://github.com/dresende/node-enforce
        }

module.exports = function (app) {

  var orm = require('orm'),
      tesla = require('../../lib/tesla')(app),
      teslaDB = require('../../lib/database')(app),
      colors = require('colors'),
      db  = orm.connect(app.config.db.url);

  orm.settings.set('instance.returnAllErrors', true);

  // DEFINE MODEL SCHEMA
  // Be sure to add some files to the schema below or you will not have success quering or adding to the database
  var Model = db.define('{model}', {
      created   : { type: 'date', time: true },
      updated   : { type: 'date', time: true }
      // _id : { type: 'text' },
      // name      : { type: 'text', required: true },
      // isAdmin : { type: 'boolean', defaultValue: false },
  }, {
      validations: {
        // EXAMPLE VALIDATIONS
        // password: orm.enforce.security.password('luns5', 'Passowrd does not meet min security requirements.'),
        // email: orm.enforce.patterns.email('Please enter a valid email address.')
        // More Options : https://github.com/dresende/node-enforce
      }

* @date 20151201
 */
var ejs = require('ejs');
var express = require('express');
var session = require('cookie-session');
var lactate = require('lactate');
var config = require('./config');
var routers = require('./routers');
var bodyParser = require('body-parser');
var flash = require('flashify');
var mysql = require('./models/mysql');
var app = express();
var orm = require('orm');
var path = require('path');

orm.settings.set("connection.pool", true);
Object.keys(config).forEach(function(key) {
    app.locals[key] = config[key];
});

app.use(function(req, res, next) {
    if (req.headers['user-agent'].indexOf('Chrome') === -1) {
        res.send('请使用谷歌浏览器');
    } else {
        next();
    }
});

app.engine('html', ejs.renderFile);
app.set('view engine', 'html');

//parse application/x-www-form-urlencoded