chrismccord

If you want a run-down of the 1.3 changes and the design decisions behidn those changes, check out the LonestarElixir Phoenix 1.3 keynote: https://www.youtube.com/watch?v=tMO28ar0lW8

To use the new phx.new project generator, you can install the archive with the following command:

$ mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez

Bump your phoenix dep

Phoenix v1.3.0 is a backwards compatible release with v1.2.x. To upgrade your existing 1.2.x project, simply bump your phoenix dependency in mix.exs:

porras

This is my best try at transcribing of the lightning talk I gave at RUG::B on April 2016. Due to poor time management (LOL) the delivery was rushed and some examples were skipped, I hope having them posted here makes them more useful.

xargs

xargs is a small but very useful program that is installed in most if not all of your computers¹. Many of you probably know it. Those who don't will learn something really useful, but those who do will learn a couple of cool tricks, too.

Why xargs

You might have heard about the Unix philosophy:

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

enoliglesias

class Dummy::TimeMachine
  def initialize(app)
    @app = app
  end

  def call(env)
    Rails.logger.info("[TimeMachine] Starting time travel.")
    Timecop.return
    request = Rack::Request.new(env)
    params = request.params

enoliglesias

def confirmation(credentials)
  return false if params['ds_signature'].blank?
  # The DES3-CBC key generation it's the same that in the creation gist
  # You can take a look at the explanation
  secret_key = credentials[:secret_key]
  secret_key_base64 = Base64.strict_decode64(secret_key)

  des3 = OpenSSL::Cipher::Cipher.new('des-ede3-cbc')
  block_length = 8
  des3.padding = 0

jamescmartinez

require 'net/http'
require 'json'
require 'uri'

@token = ''

def list_files
  ts_to = (Time.now - 30 * 24 * 60 * 60).to_i # 30 days ago
  params = {
    token: @token,

brenes

# Simple class to decorate a method and send information MiniProfiler
# Usage: CustomMiniProfiler.measure MyClass, :mymethod, "This method takes..."
class CustomMiniProfiler

  def self.measure klass, method, message, class_method=false
    receptor_class = class_method ? klass.singleton_class : klass
    receptor_class.send :define_method, "#{method}_with_mini_profiler" do |*args, &block|
      Rack::MiniProfiler.step(message) do
        send "#{method}_without_mini_profiler", *args, &block
      end

brenes

# This rack engine redirects to external URLs when some error is thrown.
# How to use it?
# Just add the rack middleware in config/application.rb
#   require 'rack/error_redirection'
#   config.app_middleware.insert_before('ActionDispatch::ShowExceptions', 'Rack::ErrorRedirection')
# And fill the error_404_url and error500_url variables
module Rack
  class ErrorRedirection
    def initialize(app)
      @app = app

brenes

# This small script uses the 'srt' gem to parse the srt file
# It solves problems with certain subtitle files with empty lines that make Flex crash
# You can use it with files, folders with files or even folders with subfolders with files (God bless Recursivity)
# USAGE: ruby fix-srt.rb file/to/fix.srt
# USAGE: ruby fix-srt.rb folder/with/files/to/fix
# USAGE: ruby fix-srt.rb folders/with/subfolders/to/fix
require 'rubygems'
require 'srt'

class StrFixer

brenes

$('form').parsley( {
    listeners: {
      onFieldError: function ( elem, constraints, ParsleyField ) {
        if (javascript_env == 'production') {
          return;
        }
        _log("Errores: ")
        _log(elem.attr("name") + ": " + elem.val());

        for(constraint_id in constraints) {