Speaker Presentation Files: RailsConf 2009

Presentation files will be made available as we receive them from the speaker. Most of the time this doesn't happen until the session has ended. Check back if you don't see the file you're looking for—it might be available later! (However, please note some speakers choose not to share their presentations.)

Also, check out the presentation files from the 2008 edition of RailsConf.

Discover how is possible to use parallel execution to batch process large amount of data, learn how to use queues to distribute workload and coordinate processes, increase the throughput on system with high latency. Have fun with EventMachine, AMQP, RabbitMQ and get rid of that every 5mins cronjob
Presentation: external link
Many come to RailsConf without being in the Rails world for very long, and are looking for a simple introduction to get started. Robert Dempsey will take you through the A-Z introduction to Rails, from MVC to what's where in a Rails app.
You know Rails 2.x is fast, but your application is still slow. This session goes beyond the basics and gets into advanced areas such as optimizing complex has_many/belongs_to relationships, template rendering, browser performance, database use. The session covers performance-oriented development processes and tools. Special topic: optimizing for deployment on dedicated, VPS and shared hosting.
The benefits of Rack support in Rails have become increasingly obvious; Rails Metal and integrating multiple Rack applications have made possible architectures that were impractical before, and some long-held opinions are ripe for change. In this session, we'll see how to set up this integration and explore real examples of how it can be used—including the rehabilitation of page caching.
A high-performance proxy server is less than a hundred lines of Ruby code and it is an indispensable tool for anyone who knows how to use it. In this talk we'll dissect three real-world examples: live A/B performance testing, extending functionality of existing applications, and real-time traffic analysis and performance monitoring. We'll implement each example using Ruby EventMachine framework.
Automated code quality tools are just starting to become popular in the Ruby and Rails world, even though they've been around a long time in the Java and .NET communities. Learn what the tools are, and how to use them to improve the consistency, testability and overall quality of your Ruby and Rails applications.
This talk explores what makes Test Driven Development really work by showing what happens where the process breaks down, focusing on rapid feedback as the key to asuccessful test-driven process. It also creates a vocabulary for talking about malformed test processes.
Has the corporate gig or client work sucked all the fun out of coding? Looking to build your freelancing portfolio? Find a cause you care about build something! Micro apps can have a big impact and build your career in the process. We'll share tips we learned in building TweetCongress.org, an effort to promote government transparency.
Let's build a mini-Google and compute the PageRank score for a 1-million page web – that's a non-trivial challenge! High performance computing may not be Ruby's strength, but we will investigate the available gems, tools, and algorithms which make this a tractable problem (spoiler: it's possible).
Future web apps will be built on the client-server model: faster, more fluid, desktop-like apps that cannot be fully realized with traditional Rails techniques for building browser views. But Rails is the perfect server framework to integrate with SproutCore, an exciting new framework for building web browser clients. Students will build a full-fledged client-server app using both frameworks.
Sometimes the best solution is a standalone application that you can give to a client or customer to just drop on a machine and run. This talk will cover the Crate project and how it may be used to package your application, be it commandline, server, or web application.
This session provides all the details on how GlassFish, and NetBeans provide a fun and robust development, deployment, and management platform for Rails applications – without pain. It talks about performance tuning tips, scalability guide, capistrano recipes, monitoring guidelines and much more - all without using Java code.
Used appropriately, mock objects are a powerful design tool that can lead to highly maintainable applications. Used in the wrong context, they can lead to painfully brittle test suites. Attendees will leave this session with more insight into mock objects, and a better handle on when it makes sense to use them.
This panel will present views on how to improve civic life, protect democracy and hold politicians accountable using Web 2.0 technology. The panelists will lay out the massive need for programmers to deploy their skills in reimagining government in a way that promotes transparency, collaboration and public participation.
The Guitar Hero® community website (http://community.guitarhero.com) is one of the largest production RoR sites on the Internet with 600,000+ registered users. We will cover the process, programming, and infrastructure for the Guitar Hero® community site. You'll see how we've been able to integrate data from three largely different Guitar Hero® titles in a consumable fashion on the web.
HTTP's basic caching mechanisms have been around for almost a decade and still their advantages and limitations are still not well understood. In this talk, we provide a clear and simple explanation of how HTTP caching works, put forth a system for classifying response cacheability, and argue that HTTP caching should be a fundamental aspect of resource design.
What's next after reading 'Extreme Programming Explained'? Are you suddenly now an Agile Developer? Likely not - you don't become Agile overnight. It's more of a journey to change how you think and work. Learn by example with tips and tricks from someone who's made that journey and is happier and more productive because of it.
RubyAMF is a Rails plug-in that allows easy, fast integration between Flex apps and Rails using Adobe’s open format for transferring typed data to/from Flash apps. We’ll walk through building a Flex application powered by a Rails back-end service. You’ll see how to work with translation to native objects in both directions, working with hierarchical data and more advanced configuration options.
With the influx of social networking and viral marketing web sites, SMS messaging has become an important part of many web applications. From choosing a gateway provider to parsing messages to sending bulk SMS messages, this session details how to send and receive text messages from your Rails application.
For all its hype, cloud computing really has introduced a potent new scaling mechanism for Rails apps, enabling your architecture to be as nimble and intelligent as your code itself. Yet there are hidden challenges and dangers for the would be cloud-jumper. In this case study, instead of hype, you'll hear the story of OtherInbox, a Rails app that scaled rapidly and cheaply (but not painlessly).
Presentation: jQuery on Rails Presentation [PDF]
A 3 hour tutorial with Yehuda Katz of Engine Yard on jQuery on Rails.
JRuby developers can now use the Rails or Merb frameworks to deploy applications to Google App Engine. We will provide an overview of App Engine, show few demos, provide some insight into using DataStore.
Presentation: JRuby on Rails Presentation [PDF]
Get an introduction to the JRuby ecosystem and all it offers for Rails development and deployment, including setup, gems, java integration, application servers, virtual machine tuning, custom embedding, and more.
Short adhoc presentations from the audience.
Presentation: external link
Workflow is a broad concept, and there are many different approaches to it. Our options in Ruby, especially declarative programming, make workflow applications fun to write, as well as very customizable without building huge "application engines". Come see how.
Agora Games has spent a significant amount of time developing the virtualized infrastructure behind Call of Duty: World at War, centering around a Rails stack that tracks the statistics for millions of players. In this talk, we'll describe how we built this architecture, how it varies from a more traditional Rails infrastructure, and the lessons we've learned doing so.
Cucumber is a novel tool for Behaviour Driven Development. While early BDD tools like RSpec and Shoulda are geared towards programmers, classes and objects, Cucumber nicely fills the communication gap between customers, programmers and testers. This session will change how you approach requirements and testing of Rails applications.
Rails is in the house? Learn how to leverage the power of ruby and rails to create attractive home automation and energy saving solutions for your entire house.
Presentation: external link
Want to use Rails but are stuck with a nasty existing database? No problem. This session will show you how we managed to defeat an ugly beast of a system. You'll come away armed with some strategies you can employ to slay even the ugliest schemas.
While others have been debating whether Rails can scale to enterprise levels, we've been demonstrating it. This session shows how to scale Rails development to the heights.
How Learning Ruby Can Make You a Happier Rails Developer. Basic Ruby practices and idioms that will put the fun back in your relationship!
Rails3 is the result of the Merb and Rails merger. While the usual ActiveRecord/ERB/Prototype/Test::Unit full stack is still the default, Rails3 now let you step off of the golden path. Learn more about alternative stack components, when and why to use them by looking at concrete examples.
In this talk the Rails Envy guys will attempt to sum up a year of Rails innovation in 45 minutes, covering 20 of the most useful, ingenious, and innovative new developments.
Few completed Rails apps are architecturally simple. As soon as you grow, you find yourself using multiple subsystems and machines to scale, creating new headaches in configuration management. Help is at hand! This tutorial introduces Chef, a modern Ruby-based open source approach to systems integration. Chef lets you manage your servers by writing code, not running commands.
Much of the Ruby and Rails community is now using Git, but there are a number of fun things that are a bit more difficult to get the hang of that are incredibly helpful to know when using Git. This session will go over some advanced Git usage for the casual or intermediate Git user.
The more complex your search queries becomes, the uglier your SQL statements get, even with ActiveRecord's helpful magic. Reclaim some clarity in your code by using the Sphinx search engine, a powerful tool that lets you search across your models in fast and complex ways.
The Rails Rumble is a 48-hour innovation competition in which teams of up to four developers embrace their environmental constraints to create a number of compelling microapps with Ruby and Rails. In this panel we'll talk to a number of Rumble participants and discover the tips, tricks, and techniques they used to successfully launch innovative web properties in an extremely short time frame.
A no-nonsense guide to making the most of the newly-integrated "engines" functionality in Rails 2.3, from the guy who wrote the engines plugin itself.
The way we deploy ruby apps is changing. This is a a rare opportunity to discuss issues and ideas in real time, directly with the key people from each part of the stack, all in one room. This is truly a killer line-up: Marc-André Cournoyer (Thin), Christian Neukirchen (Rack), Ryan Tomayko (Rack::Cache, Sinatra), Blake Mizerany (Sinatra), Adam Wiggins and James Lindenbaum (Heroku)
Presentation: The GitHub Panel Presentation [PDF]
The four full time GitHub employees talk about open source, community, building a business, and the future of social coding.
Presentation: Twitter on Rails Presentation [PDF]
Twitter is a bustling universe full of opportunities to create crazy, useful and crazy useful applications. Get a kick start to creating Twitter applications in Rails using TwitterAuth, the Twitter authentication stack for Rails.
How can you make sure that your beautiful Rails code doesn't degrade over time as more people join a project and deadlines loom? Well, there are tools to measure test coverage, code complexity, churn, bad practices, duplication, and code smell. And all of these various open source projects have been mashed together in metric_fu - a Ruby gem that makes measuring the quality of your code easy.
Webrat, a Ruby DSL for interacting with Web applications, helps you write expressive, maintainable acceptance tests while sidestepping the issues traditionally associated with in-browser approaches like Selenium and Watir. We'll look at how you can use Webrat to develop a robust acceptance test suite to ensure your app stays working as you refactor mercilessly.
A walkthrough of how common and popular Ruby features are actually implemented, with a focus on how they work, why they behave the way they do, and why they do or do not perfom well. If you'd like to better understand What Makes Ruby Go, this is the talk for you.
Rails has excellent caching strategies for the server side but did you know typically 80% of a responses time is on network communication? This will be an exploration of all the dirty details of caching your app's personal bits in the client browser. We'll look at what Rails provides and what you can additionally do to reduce response times and load on your application with little effort.
News and Coverage
co-presented by Ruby Central, Inc. O'Reilly
  • Engine Yard
  • Heroku
  • Sun Microsystems
  • Blue Box Group
  • New Relic

Sponsorship Opportunities

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Download the RailsConf Sponsor/Exhibitor Prospectus

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Program Ideas

Post your suggestions for speakers, topics, and activities on the RailsConf wiki or send an email to rails-idea@oreilly.com.

Press and Media

For media-related inquiries, contact Maureen Jennings at maureen@oreilly.com.

Contact Us

View a complete list of RailsConf 2009 contacts.