Add an eventSessions at RailsConf 2012 in Hilton Austin Downtown
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- Venue: Hilton Downtown
Monday 23rd April 2012
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BohConf
BohConf is a hacking-centric event that will include community code drives featuring well-known OSS authors, barcamp-style discussions, and more.
We've got 2 rooms reserved for everybody's favorite unconference. No RailsConf badge required. Please register on EventBrite (http://bohconf-railsconf2012.eve...).
Follow @bohconf for the latest news.
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Designing Hypermedia APIs
Rails did a lot to bring REST to developers, but its conception leaves the REST devotee feeling a bit empty. "Where's the hypermedia?" she says. "REST isn't RPC," he may cry. "WTF??!?!" you may think. "I have it right there! resources :posts ! What more is there? RPC? Huh?"
In this talk, Steve will explain how to design your APIs so that they truly embrace the web and HTTP. Just as there's an impedance mismatch between our databases, our ORMs, and our models, there's an equal mismatch between our applications, our APIs, and our clients. Pros and cons of this approach will be discussed, as well as why we aren't building things this way yet.
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i18n on Rails: A Twitter Approach
Twitter's internationalization (i18n) and localization (l10n) model doesn't follow traditional methods. Instead of contracting out to professional translators, Twitter maintains an active community of over 500,000 volunteers who have helped successfully launch Twitter in 28 languages, including right-to-left languages like Hebrew and Arabic. Learn about some of the technical challenges we face, how to translate a Rails application at scale, and what to do when the i18n gem and po files aren't quite enough. We'll take a look at the tricky stuff too, like dates, times, lists, plurals, alphabetization, and capitalization using the twitter_cldr gem, and go over internationalization best practices. Finally, we'll explain how to maintain internationalization of your Javascript alongside your Rails code for an end-to-end solution.
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Not a Vendor Pitch: Real World Rails Apps at Massive Scale
by Lew Cirne, Pitr Vernigorov, Joshua Warchol, Tim Sturge and Jon Pliske
New Relic CEO Lewis Cirne will lead a panel discussion with representatives from some of today's most popular, highly-trafficked web sites. With millions of uniques a month, find out how these organizations are optimizing their Rails-based sites for mobile, for unexpected traffic bursts, and for seasonality.
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Rails for Zombies (AKA Intro to Rails - Part 1)
Do you need to start learning Ruby on Rails? In this morning tutorial the Envy Labs team will lead you through all five labs of their Rails for Zombies course. Unlike other tutorials, all you need to start coding Rails is a laptop with Wi-Fi and a browser which isn’t Internet Explorer. All coding will be done through our web application, and there will be plenty of lab assistants to help you if you get stuck along the way. Before you come to the course we recommend you play through http://www.tryruby.org/. It’s an in-browser Ruby tutorial.
Topics Covered:
- Basic ActiveRecord CRUD
- Models, Validations, has_many, belongs_to
- Views, ERB, Loops
- Controllers, before filter
- Basic Routing
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Using Backbone.js with Rails: Patterns from the Wild
by Sarah Mei
Backbone.js is a flexible, lightweight tool for structuring the JavaScript in a modern web application. It goes great with Rails! But beware - "flexible and lightweight" are code words for "you build your own plumbing." Backbone is new enough that we haven't established strong patterns for that plumbing yet, so different Backbone codebases look very different, and when you're new to the idea of structuring your JavaScript, it can be tough to tell where the win is.
So in this talk I'll demystify Backbone. I'll show several very different ways I've used it on real Rails apps. You'll get a feel for the circumstances when Backbone makes sense, and moreover, when each of the different approaches to Backbone make sense.
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CoffeeScript for the Rubyist
by Mark Bates
CoffeeScript is taking the world, and particularly the Rails eco system, by storm. This little language has provided an almost Ruby like abstraction onto of JavaScript. CoffeeScript is trying to make writing front end code as much fun as Ruby makes writing backend code.
In this talk we start with the basic concepts of CoffeeScript and move on to the more powerful and fun features of the language. While we're looking at CoffeeScript we'll see how it relates to the Ruby code we write everyday. What do Ruby 1.9 lambdas and CoffeeScript functions have in common? Which of the two languages supports splats, default arguments, and ranges? The answers may surprise you.
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Engine Yard - The Cloud, Application Support, and You - Ask Me Anything
This panel is made up of EY Support Engineers and Developers and they are ready to answer your questions! Want to know more about deploying to the cloud? What does PaaS mean to you? What is the EY Stack?
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Getting Down To Earth: Geospatial Analysis With Rails
by Daniel Azuma
It is no secret that location has become ubiquitous. Mobile GPS, available data sets, and easy-to-use mapping services have brought geospatial information within reach of web developers. Location already plays a significant role in many of the major services such as Twitter, Facebook, and Google, not to mention legions of startups.
However, for those of us implementing more than the most trivial features, it is also true that location is challenging. A significant learning curve awaits us, involving spatial databases, coordinate systems, interchange formats, and plenty of math. Our Ruby-based tools lag a bit behind those available to our Java- and Python-oriented colleagues, and effective documentation is scarce.
This presentation aims to jump-start Rails developers hoping to go beyond putting a few pushpins on a Google Map. Rather than spending a lot of time explaining the many concepts involved, we'll bypass the learning curve and jump straight into walking through code for a few nontrivial applications. The hope is that the conceptual knowledge will come naturally as a result of seeing it in action, but pointers to online resources will also be provided to fill in any gaps.
A thorough understanding of Ruby, Rails, ActiveRecord, and SQL will be assumed. No prior knowledge of GIS or computational geometry will be required, though it may be helpful.
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Practical Machine Learning and Rails
by Andrew Cantino and Ryan Stout
Many people know that machine learning techniques can facilitate learning from, and adapting to, noisy, real-world data, but aren't sure how to begin using them. Starting with two real-world examples, we will introduce you to some libraries that bring machine learning techniques to your Rails applications. We will then dive into the art of feature design, one of the first practical roadblocks that many people encounter when applying machine learning. Feature design is the challenging, subtle, and often trail-and-error process of selecting and transforming the data you provide for your learning algorithm, and it is often the hardest part of using these techniques. Our goal is for you to come out of this talk with the tools necessary to think about machine learning and how to apply it to your problems.
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Mobile Rage - What causes it & how to fix it
by Lori M Olson
Most of us have been there. That website you want to use, from your mobile device, that just refuses to cooperate. From the Flash-only, to the can't f**king log in, to the redirect-to-mobile-and-stay-there sites, there's more than enough websites out there to invoke Mobile Rage.
Although we all know that the best mobile development strategy is "mobile-first", we also all know how many sites and applications out there were designed and built by people who didn't imagine how fast mobile would take over.
Come learn about the common mistakes most people make for mobile, and some of the simple solutions you can use to help reduce Mobile Rage, without having to do a complete rewrite.
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Rails Engines Patterns
by Andy Maleh
This talk covers a successful utilization of Rails Engines to share features that cut across the layers of MVC in different Rails 3 projects. Rails Engines thus provide the best of both worlds: improved productivity by reusing MVC code (including assets like Javascript, CSS, and Images) and better flexibility by allowing different applications to customize behavior as needed without reliance on application-dependent conditionals. Rails Engine patterns will be provided to guide developers on how to leverage Rails Engines' reusability and flexibility without sacrificing maintainability.
Outline:
- Basics of Rails Engines
- Rails Engine Patterns
- Improved Productivity Tips
- Summary of Benefits and Trade-Offs
Attendees should walk away with an overview of Rails Engines and guidelines on how to utilize them effectively.
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RoRoRoomba - Ruby on Rails on Roomba
RoR makes an excellent framework for off-the-beaten-path type of projects, like hacking Roombas and other robots. In this presentation, I'll demonstrate how our soon to be robot overlords will be happy when we gift them with RoR and a connection to the internet. The presentation will include working examples and demonstrations of:
- communicating with an Arduino chip via Ruby
- tethered serial and wireless bluetooth control of a Roomba via Ruby and Arduino
- two-way communication with our robot friends over the web using Ruby on Rails and popular web services
- useful applications of robots controlled over the web
- 3 RoRoR pitfalls to watch-out for
- live performance of "Chiron Beta Prime" by Jonathan Coulton*
The presentation will close with an argument for why hacking on fun, often eccentric, projects in your spare time is essential for staying motivated, habitual improvement, and tangential learning -- i.e., being a real pragmatic programmer.
*not included, perhaps
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Up and to the right – how Spiceworks is scaling 200 million requests per month
by Francis Sullivan and David Babbitt
Curious how Spiceworks, a social business app built on Rails, keeps 2 million active users happy? With Ruby on Rails, baby! In the last year our usage has increased 8x and now exceeds 200 million requests per month. Join Francis Sullivan, CTO and Co-founder, and David Babbitt, Technical Program Manager, to hear about the architecture and best practices we adopted to make this happen.
Get the ins-and-outs on:
- Hosting a high volume Rails application
- Choosing what to optimize
- Lessons learned while moving to JRuby
- Updating a large codebase through Rails beta to Rails 3
- Scaling the dev organization
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ActiveSupport and ActiveModel
by Bryan Liles
Have you ever wondered what makes Rails tick? Bryan Liles will cover two of the pillars of the Rails foundation: ActiveSupport and ActiveModel. Together we will discover where some of Rails’ ease and power originates and how make use of it in your projects.
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From Rails Rumble to 50,000,000 results
StillAlive.com was born from the 48 hour intense 2010 Rails Rumble and has grown! Having recently passed our 50,000,000th site result, this talk discusses the real world challenges and optimisations required to take a code base born from the fires of YAGNI to a production system.
This talk isn't about how you can scale from 0 requests to 500 billion requests per microsecond, but give a practical view to some of the performance problems we faced as the application steadily grew from a hack job into a functioning system.
The journey will go through the mistakes we made, challenges faced and real world optimisations discovered, including some tricks we learnt along the way from concurrent index creation to using the ZeroMQ messaging framework with Rails
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How Rails helps make cooking more fun in Japan
With more than a million user submitted recipes and an active user base of 15 million monthly unique users, cookpad.com is the world's largest recipe website, and an essential tool for the 50% of all Japanese women in their 20's and 30's who use the site regularly.
The Cookpad.com service is built on Rails and is running entirely on AWS in Tokyo, where more than 30 engineers are working in small agile teams to bring more value to users every day.
As you know, Japan had a huge earthquake and tsunami last year, and some of those affected didn't have cooking facilities, water or basic foods for long time. Many Cookpad users immediately uploaded simple recipes that could be made without the basics in adverse conditions, and helped those in hardship immensely allowing them to enjoy food with their families at that difficult time.
In this session, I'll talk about the COOKPAD way of creating services and the technologies behind them, and how we improve peoples lives through cooking every day.
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Progressive Enhancement on the Mobile Web
by John Bender
Progressive Enhancement isn't important on the mobile web because it's all Webkit right? Not so fast. Even among Webkit implementations events, css, and performance vary widely. We'll talk about the darker corners of the mobile web and show how jQuery Mobile can help you build Rails applications that are reliable, accessible, and support more devices.
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Use the Source, Luke: High fidelity data with event sourcing
by Keith Gaddis
Ever run into a really gnarly data problem and wished you had a do-over? Tired of wrestling with ActiveRecord to model a really complex domain? Looking for a good way to echo state changes to external systems? Then grab a cup of joe and settle in for a look at event-sourcing your data.
Event-sourced data uses Plain Old Ruby Objects (POROs) to model your data and exclusively uses events to mutate state on those objects. By serializing the events, the state of your data can be recreated for any point in time, and outside listeners can create specialized purposeful datastores of the data, enabling complex business requirements with fewer hassles. We'll also touch on other architectural patterns like DCI and CQRS that play well with this idea.
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Rails-flavored Ruby
Based on Chapter 4 of the Ruby on Rails Tutorial by Michael Hartl, “Rails-flavored Ruby” covers the aspects of the Ruby programming language most important for developing Rails applications. Topics include hashes, arrays, and other objects; blocks; functions; and classes.
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A Polyglot Heroku
by Terence Lee
Over the past year, Heroku has expanded by going polyglot and supporting languages like Java, Clojure, Python, Node.js, and Scala in addition to Ruby. In this session, we will discuss major updates to the platform and our emphasis on making the Ruby developer experience even better. We'll leave plenty of time at the end for any questions.
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Realtime web applications with streaming REST
by Brad Gessler
As more people collaborate on the web with your applications, its not enough to just persist data to the database; it needs to be pushed out to your users web browsers so that they're always working with the freshest data.
In this session, Brad will show how to build a real-time layer on top of an existing Rails application's authorization and resource logic so that you can build on top of the hard work already invested in your Rails application.
Topics that will be discussed include:
- Why I didn't choose Socket.IO
- Stream application resources into Backbone.js models to keep data fresh
- Hook into ActiveRecord to push representations of data into a message queue
- Message queue naming conventions public/private resource streams
- Exposing message queues to HTTP
- Securing streams with existing application authorization logic
- Considerations for streaming in a production environment
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RVM & Essential Rails Development Tools
Working with Rails often means switching between several Ruby versions back and forth which is made almost seamless by RVM. It also involves several simple command line tools like Pry, Guard, and Pow and that will make your development life so much easier.
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Securing your site
Rails makes it very easy to rapidly develop web applications, but doesn’t always make it so simple to deploy or secure them.
This talk is going to focus on best practices to secure your rails application, learnt through multiple high profile projects and penetration tests. The talk will be practical and show that this isn’t necessarily hard if thought about from the start.
We’ll also touch on getting the right balance of security without it getting in the way of the users.
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The Future of Sass
A glimpse of some of the features coming to Sass in the pending 3.2 release. Plus, a huge announcement about the project that's been months in the making as we have secretly toiled away on something that we think will be awesome. Hear it first at this talk. Repositories will be made public when the talk is over. Shh! Its a secret!
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ActiveRecord Scopes and Arel
Scopes are a great way of encapsulating query logic in a granular, reusable way. This talk will cover some techniques you can use to keep those scopes as composable and portable as possible. We’ll cover how to use Arel directly, while avoiding the common practice of using SQL fragments, and show you how this can make your scopes more reusable, while at the same time preventing you from using database vendor specific operators, such as ILIKE.
Tuesday 24th April 2012
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BohConf
BohConf is a hacking-centric event that will include community code drives featuring well-known OSS authors, barcamp-style discussions, and more.
We've got 2 rooms reserved for everybody's favorite unconference. No RailsConf badge required. Please register on EventBrite (http://bohconf-railsconf2012.eve...).
Follow @bohconf for the latest news.
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Patella: It's Memoization into Memcached calculated in the background with Resque.
by Jeff Dwyer
I regularly write code that does something great but is slow as a dog. Denormalizing / pre-computing / backgrounding are all fine, but they're all an investment and they leave tentacles all through the code. I want to be able to try out slow but very useful code in my app without the friction of performance concerns, but also without worrying that my ops engineer is going to kill me in my sleep.
Wouldn't it be nice to add one line to our models that takes care of caching, cache keys, backgrounding, dog-piling, and cache warming? Oh, and it should give the UI clear consistent hooks so that it's clear whether the data is ready so the UI can render a spinner or disable a feature until the computation is complete.
We'll take a look at a series of techniques that we use at PatientsLikeMe to allow us to safely and quickly put some very expensive queries on the website so that we can evaluate whether it's worthwhile to create longer term solutions. The solution we've come up with is a lot of gloss over memcache and resque that makes it feel like we can memoize any method in our application and lets us focus on the goals of the algorithms rather than their performance and architecture.
This talk will feature: memcache, resque, a bit of metaprogramming, a look at caching in the wild and code that fixes some usual problems, and a fairly epic SQL query with some nice Postgres features you should know about.
You should come if: you want to take a look at some practical solutions that we use in production to be able to roll out computationally expensive features.
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Preparing for Rapid Growth - Tips for Enabling Your Rails App and Team to Grow Quickly
Every young company expects to grow quickly, but is your engineering team really ready for it? In 3 years, iTriage went from a kitchen table to one of the leading mobile consumer healthcare apps with over 5 million downloads. Staying ahead of this growth didn't just mean hiring more Rails engineers.
Patrick will discuss what iTriage did (and continues to do) to stay ahead of our growth, including:
- Technical architecture, including use of Rails Engines to enable a modular, RESTful service-based design
- Enabling high quality iPhone, Android and Web apps
- Development and release management processes
- Recruiting and hiring approaches
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Presenters and Decorators: A Code Tour
by Mike Moore
Presenter and Decorators are design approaches that can be used in Rails applications outside of the standard Models, Views and Controllers. These approaches are becoming more and more popular as teams search for new ways to identify and manage the complexity within their applications.
In this session Mike Moore will defined the Presenter and Decorator approaches using simple and clear terminology. Common design problems in Rails applications will be shown using real-life code examples and refactored toward Presenters and Decorators. Code will be improved and strengthened by identifying and respecting the dependencies within large applications.
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