vajapravin

What's new in Ruby on Rails 4
A RoR 4 press review
Silvio Relli @ Florence On Ruby
Bibliography and related resources

1) Rails queue
http://reefpoints.dockyard.com/ruby/2012/06/25/rails-4-sneak-peek-queueing.html
http://blog.remarkablelabs.com/2012/12/rails-queue-rails-4-countdown-to-2013
https://github.com/rails/rails/commit/adff4a706a5d7ad18ef05303461e1a0d848bd662

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Setup PHP

apt-get install mysql-server php5-cgi php5-mysql php5-curl php5-cli

cp default-php-fastcgi /etc/default/php-fastcgi cp php-fastcgi /etc/init.d/

update-rc.d php-fastcgi defaults

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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# 0 is too far from ` ;)
set -g base-index 1

# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on

#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000

vajapravin

Figure out a good standard for how to use the HTTP response codes in a 'truly RESTful' (Now called 'Hypermedia API' apparently) way.

Summary

• HTTP Methods (Verbs)
  • Spec: http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
  • OPTIONS: Display which HTTP methods can be called on a resource.
  • GET: Just get a resource.
  • PUT: Update a resource
• PATCH: Partial update of a resource (not universally supported)

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class User < ApplicationRecord
  has_many :posts
  has_many :comments
  #  id                   :integer          not null, primary key
  #  name                 :string(50)       default("")
end

vajapravin

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