pzol

module Bmsapp
  module Booking
    class ActionController
      def initialize(ui, deps=Dependencies.new(:current_user => ui.current_user))
        @ui, @deps, @bms, @logger = ui, deps, deps.bms, deps.logger
      end

      def action(action_name, id, params)
        @booking     = @bms.booking_by_id(id)
        @params      = params

pzol

#!/usr/bin/env bash
apt-get -y update
apt-get -y upgrade
apt-get -y install build-essential zlib1g-dev libssl-dev libreadline-gplv2-dev libyaml-dev 
apt-get -y install autoconf curl git-core bzip2
apt-get -y autoremove
apt-get -y clean
cd /usr/local/src
wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p362.tar.gz
tar -xvzf ruby-1.9.3-p362.tar.gz

pzol

Monadic vs Imperative

Here is a comparison of two pieces of code that do basically the same thing.

So what we have here is a chain of functions depending on each other, each consecutive takes the result of the previous one for further processing. If either of them fails, the rest shall not be executed.

1. validate parameters received from the outside world in a Hash
2. convert one of the parameters into an object
3. do a search in the database

pzol

Running Puma on Nginx

I use the latest Puma v1.4.0 from rubygems.

Make sure you have nginx installed with these options:

>/opt/nginx/sbin/nginx -V
nginx version: nginx/1.0.15

built by gcc 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)

pzol

feature 'Drinking Beer' do

  scenario 'Drink a favorite beer' do
    user = TestUser.new.extend(BeerDrinker)
    user.pickup_favorite_beer "Belfast"
    user.drinks_chosen_beer!
  end

  scenario "Getting wasted" do
    user = TestUser.new.extend(BeerDrinker)

pzol

sudo bash -l -c 'rvm implode && rm -rf /etc/rvmrc /usr/local/bin/rvm* /usr/local/rvm'
rm ~/.rvmrc
bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )

rvm reload

# check if it is loaded correctly, this should return rvm is a function
type rvm | head -n 1

pzol

This was a test with Poltergeist I did the other day

#!ruby
def polter
   noop

end

pzol

# encoding: UTF-8

# parsing with EOF throws illegal characters!?
json = <<EOF
{
  "date_a": "2011-07-22T09:54:44Z",
  "city": "wroc\u0142aw",               # after this the next date is not parsed anymore!
  "date_b": "2011-07-22T09:54:44Z" 
}
EOF

pzol

# this does not run as a complete script :(
pkg_add -r bash curl sudo
pkg_add -r git vim               # can you live without it?
pkg_add -r libxml2 libxslt       # for nokogiri later
pw usermod pzol -G wheel

bash                             # start bash and run the rest inside it
curl -# -L http://bit.ly/rvm-install-system-wide > rvm-install-system-wide
bash -l < rvm-install-system-wide

pzol

#! /bin/sh

TINYPMVERSION=2.2.3

# from /etc/init.d/tomcat6
NAME=tomcat6
# Directory where the Tomcat 6 binary distribution resides
CATALINA_HOME=/usr/share/$NAME
# Directory for per-instance configuration files and webapps
CATALINA_BASE=/var/lib/$NAME