Bernardo bernardobarreto

HTML and Sinatra really only support the GET and the POST methods. In order to be able to use the PUT and DELETE methods in Sinatra, you kind of have to "trick" the form to go to the right place. Then you can name the routes the proper way - otherwise you can only really work with GET and POST.

I used the Craiglist Jr challenge for some examples. Let's look at a quick example of a POST form/method/route- in this case, we're creating a new Craigslist article:

POST form and corresponding route:

<form action="/article/new" method="post">
  --------------------------------
  YOUR FORM FIELDS HERE

This is a rough guide to setting up browser testing through Selenium on Windows Subsystem for Linux (WSL), aka Bash on Ubuntu on Windows. It assumes the following environment:

Windows 10, running WSL
A Ruby dev environment, running inside WSL
Code that we want to test using a web driver, in this case Selenium, with a Capybara and RSpec test framework

The coding project folders are stored in the main Windows filing hierarchy and accessed via dev/mnt, but that makes no real difference to development and testing other than making it possible to edit the code using a GUI based editor within Windows.

The problem with browser testing in WSL is that it relies on opening and controlling a web browser, and browsers don’t work on WSL at present as it deliberately doesn’t include X Windows or some other GUI manager - it’s meant to be command line after all. So while you can apt-get firefox, trying to actually run it isn’t going to work.

A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

Web fonts are pretty much all the rage. Using a CDN for font libraries, like TypeKit or Google Fonts, will be a great solution for many projects. For others, this is not an option. Especially when you are creating a custom icon library for your project.

Rails and the asset pipeline are great tools, but Rails has yet to get caught up in the custom web font craze.

As with all things Rails, there is more then one way to skin this cat. There is the recommended way, and then there are the other ways.

The recommended way

Here I will show how to update your Rails project so that you can use the asset pipeline appropriately and resource your files using the common Rails convention.

	class Author
	include Mongoid::Document
	field :name, :type => String
	embeds_many :posts
	end

	class Post
	include Mongoid::Document
	field :title, :type => String
	embedded_in :author

	# From bcrypt-ruby gem
	require 'bcrypt'
	class User
	include DataMapper::Resource

	attr_accessor :password, :password_confirmation

	property :id, Serial
	property :username, String, :required => true, :length => (2..32), :unique => true
	property :password_hash, String, :length => 60

	ESTADOS_BRASILEIROS = [
	["Acre", "AC"],
	["Alagoas", "AL"],
	["Amapá", "AP"],
	["Amazonas", "AM"],
	["Bahia", "BA"],
	["Ceará", "CE"],
	["Distrito Federal", "DF"],
	["Espírito Santo", "ES"],
	["Goiás", "GO"],

	# MySQL. Versions 4.1 and 5.0 are recommended.
	#
	# Install the MySQL driver:
	# gem install mysql2
	#
	# And be sure to use new-style password hashing:
	# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
	development:
	adapter: mysql2
	encoding: utf8

	function RemoveAccents(strAccents) {
	var strAccents = strAccents.split('');
	var strAccentsOut = new Array();
	var strAccentsLen = strAccents.length;
	var accents = 'ÀÁÂÃÄÅàáâãäåÒÓÔÕÕÖØòóôõöøÈÉÊËèéêëðÇçÐÌÍÎÏìíîïÙÚÛÜùúûüÑñŠšŸÿýŽž';
	var accentsOut = "AAAAAAaaaaaaOOOOOOOooooooEEEEeeeeeCcDIIIIiiiiUUUUuuuuNnSsYyyZz";
	for (var y = 0; y < strAccentsLen; y++) {
	if (accents.indexOf(strAccents[y]) != -1) {
	strAccentsOut[y] = accentsOut.substr(accents.indexOf(strAccents[y]), 1);
	} else

	// ==UserScript==
	// @name Udacity EXT - Auto next video&quiz
	// @description Udacity Extension -- Automatically go to the next video or quiz question upon reaching the end of the current one
	// @namespace http://sepczuk.com/
	// @version 0.2
	// @include http://www.udacity.com/view*
	// @match http://www.udacity.com/view*
	// @copyright 2012, Damian Sepczuk, Hugo Lopes Tavares // Bernardo B. Marques
	// ==/UserScript==