…Dave Thomas as Don't Repeat Yourself (DRY) principle in "The Pragmatic Programmer" book. It states that: Every piece of knowledge must have a single, unambiguous, authoritative representation within a system. DRY principle is not about typing, but it is about not duplicating concepts and isolating change. If you have to change something in more than one place, then it's not DRY.
5. Open/Closed Principle ( OCP)
Software entities (classes, modules, …
- Complicated Simplicity: Two Things I Avoid
- CaelumObject Developers' Blog: JAX-RS 2.0 - How to improve it
- Lindsay Holmwood - auxesis' musings: Pipelines: a modern approach to modelling monitoring
- Heroku: Python and Django on Heroku
- Tea-Driven Development: Commands vs Queries
- Dead Programmer Society: LARubyConf 2009 - Jim Weirich - "The Grand Unified Thoery of Software Development
…Code Kata is a term coined by Dave Thomas, co-author of the book The Pragmatic Programmer, in a nod to the Japanese concept of kata in the martial arts. A code kata is an exercise in programming which helps a programmer hone their skills through practice and repetition. The goal of our Python Kata is to get your mind wired into performance driven development, to reinforce your skills as a user of New Relic .
We unveiled the Python kata at our New Relic PyCon tutorial on …
- DevChix: PyCon 2010 talk proposal deadline: Oct 1st
- JJinuxLand: PyCon: Welcome Message on the Second Day
- jimmy.thinking: MIX10, Part 2.2 - Client-side web-development with dynamic languages
- giant robots smashing into other giant robots: Everybody Codes
- Spyced: Speaking to a technical conference
- oldmoe: Computing In The Cloud, Google App Engines
…practice that have come to the fore in recent years. You could say that Adam reading The Pragmatic Programmer back in 2000 is one of the reasons we invite developers to come together for Waza, which happens tomorrow . And one of the reasons we share the talks freely online for those who cannot make it. Waza is all about technique, about personal improvement for developers, about, as the subtitle of The Pragmatic Programmer says, the journey from journeyman to master.
- igvita.com: Scalable Work Queues with Beanstalk
- RubyLearning Blog: Rubyists and Companies I am thankful for in 2009
- New Relic: Weekly News Round Up — more predictions for 2012, a look inside the Drupal community, and some partner news
- High Scalability: Hot Scalability Links for May 14, 2010
- Ryan Daigle: Using `heroku pg:transfer` to Migrate Heroku Databases
- Global Nerdy: "The Agile Business" Infographic
Programming Ruby 1.9 & 2.0 - The Pragmatic guys have updated the standard book on the subject too.
CoffeeScript 1.5.0 - New release including literate CoffeeScript .
# learnchef - Home for OpsCode Chef learning resources.
A Capybara Future - Some thoughts about where the Capybara API might go from here.
Ruby 1.9.3-p392 is released - And yeah, to stay secure you should upgrade.
- Ruby Inside: This Week in Ruby: Rails Rumble Dates, Active Admin 0.5, Protected Methods in Ruby 2.0
- Katz Got Your Tongue?: August Tokaido Update
- Headius: Refining Ruby
- 4 Lines of Code: Fundamental attribution error of programming
- Phusion Corporate Blog: Why Rails 4 Live Streaming is a big deal
- New Relic: Recap of RubyConf 2012
…Pragmatic Programmers mentioned using a similar tool when writing The Pragmatic Programmer: From Journeyman to Master , so the idea has probably been around for a while.
Using doc-code-merge is easy. Start by writing some documentation such as:
Then, write some code such as:
Now, run doc_code_merge.dart:
This results in:
Easy peasy! doc-code-merge automatically handles things like indenting code blocks when generating Markdown and HTML escaping code when generating …
- igvita.com: Google Web Toolkit: GWT, Closure, NaCl, Dart & JS
- A Fresh Cup: Double Shot #727
- Intridea - Company Blog: Intridea Insider: Brent Collier
- Global Nerdy: Ignite Your Coding, Episode 1: Andy Hunt
- psionides.jogger.pl: Javascript unit testing
- Zerosum Dirt(nap): Why I Love Vim
The Pragmatic Programmer now in DRM -free ebook, all formats for one price.
- Zen and the Art of Programming: My kingdom for an iPad
- O'Reilly Media: Ruby and Rails: Seven Languages in Seven Weeks
- Viget.com Blogs: Some of My Favorite Books about Programming
- Zerosum Dirt(nap): NetBeans: Helpful Plugins
- Mike Clark: Free Brain Food
- Ruby Inside: This Week's Top Ruby News: JRuby 1.6.5, A New Prag Prog Book, Fast Specs, Rails Style Guide and More
Raspberry Pi book now available in the Pragmatic exPress series
- Topics: Raspberry Pi
- O'Reilly Media: Ruby and Rails: Seven Languages in Seven Weeks
- Tammer Saleh: Shoulda in Advanced Rails Recipes
- jystewart.net | notes, tips and commentary by James Stewart: Help me clear some shelves?
- Lance: Adventures In Interviewing
- Simone Carletti's Blog: Book Review: Getting Real
- Zerosum Dirt(nap): Why I Love Vim
A month ago, I shared the news of the Pragmatic Programmers releasing 'The dRuby Book' by Masatoshi Seki. Here, its translator Makoto Inoue goes through some of the topics covered in the book and shows off some uses of DRb.
How to Serve Your Rails Assets Over Amazon S3 with asset_sync
User Authentication with Rails and Backbone.js
Backbone.js is a handy JavaScript framework for developing webapps and Rails is similarly handy on the …
- Tea-Driven Development: Hexagonal Rails - Introduction
- Giles Bowkett: With Apologies, Some Senseless Ruby Bickering
- Merbist: Learning from Rails' failures
- paperplanes: On Notifications, Log Subscribers, and Bringing Sanity to Rails' Logging
- Plataformatec Blog: My five favorite "hidden" features in Rails 3.2
- Signal vs. Noise: Mini tech note: MySQL query comments in Rails
And again, a mixture of travel, illness, and exhaustion have prevented me from my weekly updates on here (although Ruby Weekly is still going out on a weekly basis!) so here's a bumper update for all of the top Ruby and Rails news from March 2012.
Highlights include: Matz wins a prize, Ruby is approved by the ISO, some awesome jobs , Bundler 1.1, Vagrant 1.0, Rails 3.2.3, Avdi Grimm's Object on Rails book, the Pragmatic Programmers release …
- Giles Bowkett: Rails Went Off The Rails: Why I'm Rebuilding Archaeopteryx In CoffeeScript
- Engine Yard Developer Blog: Building Mobile Web Applications With Kendo UI And Engine Yard
- Merbist: Learning from Rails' failures
- Paul Gross's Blog: Untangle Domain and Persistence Logic with Curator
- paperplanes: On Notifications, Log Subscribers, and Bringing Sanity to Rails' Logging
- Dr Nic: Instant new Rails applications with the App Scrolls
The idea is far from new. The Pragmatic Programmer talked about blackboards, a similar mechanism, Cocoa has had something similar for ages, and now Rails has something like it too.
The basic idea is that you have a centralized repository where you can subscribe to events, for example to the event ActionController triggers when it process an action. Here's the code to extract the path that was requested by a user. ActionSupport::Notifications.subscribe('process_action.action_controller') …
- A Fresh Cup: What's new in Edge Rails #3
- Giles Bowkett: With Apologies, Some Senseless Ruby Bickering
- Paul Gross's Blog: Untangle Domain and Persistence Logic with Curator
- omgbloglol: Bad (or, my unfortunately unfavorable review of Bob Martin's Ruby Midwest keynote)
- Merbist: Learning from Rails' failures
- Ruby Inside: The Mega Ruby News and Release Roundup for February 2012