The Ruby and Rails community linklog
Made a library? Written a blog post? Found a useful tutorial? Share it with the Ruby community here or just enjoy what everyone else has found!
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Stream(SQL) Event Processing with Esper
Hadoop batch-processing is not the panacea to every problem. StreamSQL allows us to easily filter, aggregate, and even merge multiple realtime streams to detect correlations, run custom calculations, and much more - all without extra code! A quick intro to StreamSQL, the Esper engine, and a JRuby example to apply it to a real-time Twitter stream</>.
RuPy 11 Conf (Ruby & Python) - Call for Proposals started
RuPy 11 is a three day conference about Ruby & Python programming languages, with two tracks, a workshop sessions and startup festival. Held in Poland, scheduled for October 14-16, 2011. Great speakers invited: Ezra Zygmuntowicz, David Beazley, Yehuda Katz to name a few. CFP is open. Submit a talk. Follow @RuPy for more updates.
Rails Many-to-Many Primer
I just posted a much requested video on many-to-many associations at TeachMeToCode.com. This is part 1 on a 3 part series on many-to-many associations. If you have a topic you’d like to see a video on, go to Teach Me To Code and click “Request a Topic.”
Introducing sproutcore-rails
After hearing about SproutCore 2 developer preview we wanted to make SproutCore integration to Rails a bit easier. So we built sproutcore-rails. It’s the first version so feedback is appreciated
Ruby Midwest Conference is back! CFP & Early Bird started!
Ruby Midwest 2011 is a two day, single track conference scheduled for Friday and Saturday, November 4-5, 2011 in downtown Kansas City, MO with keynotes from “Uncle Bob” Martin and Andy Hunt. Limited Early Bird registration ($129) open. Want to speak? Submit a talk. Follow @RubyMidwest for more updates.
How HAML Works
In which I investigate the parsing engine in HAML, then build my own mini-haml!
The Ruby Rogues discuss Databases, SQL, and NoSQL
The Ruby Rogues (this week, Charles Max Wood, Aaron Patterson, Peter Cooper, James Edward Gray II, and Fernand Galiana) have a new episode of their podcast up where they discuss databases, key value stores, and the SQL/NoSQL debate.
Campfire Handler for Chef
I just launched the Campfire_Handler gem. Sends Chef Exceptions to a Campfire room.
Released cucumber-websteps 0.9.0 gem
I just launched cucumber-websteps - advanced collection of web steps, based on cucumber-rails’s web steps.
Deploying a Rails 3.1 application to production (the gotchas)
I’ve just published a blog post about the gotchas I encountered while deploying a Rails 3.1 application to production that might prove useful with the pending Rails 3.1 release.
RubyGems is not a BattleField: Part I
For the last several days I’ve been collecting feedback from RubyGems users and contributors to try to get to the heart of what is causing so much drama. On May 25th, I spent a long time on the phone with Eric and Ryan talking about what they can do to help make things better. Here are the notes from our meeting, I think it’s a good start.
Rails 3.0.8 RC1 Released
Aaron ‘tenderlove’ Patterson has written a highly stylized announcement of Rails 3.0.8 RC1’s release:
Powder: Making Pow Even Easier
Powder is a gem that makes using 37signals’ handy Pow server even easier. It turns adding a project to your Pow setup down a simple powder at the command line, powder open to load the page in your browser, and that’s it.
A perspective on MacRuby from a Rails coder's POV
The MacRuby framework is a fresh and exciting way for us Ruby developers to build native Mac OS X applications. As you work your way through MacRuby’s undocumented areas you’ll need to wield a lot of patience and creativity. That’s the price you pay for being on the vanguard of the MacRuby movement. [more inside]
Render QR codes easily from your Rails 3 application
After reading José Valim’s first chapter on custom renderers in Crafting Rails Applications, I put together a quick QR Code renderer. Supports SVG (print!) and PNG. [more inside]
HireFire - The Heroku Worker Manager
A while back I released HireFire, an open source RubyGem which allows you to auto-scale your Heroku workers, which saves you money and enables faster job processing. This went fine for a while, but unavoidable issues occurred due to Heroku’s platform limitations. [more inside]
An inside look at how heroku handles downtime with Mark Imbriaco
Sit back and learn how heroku works, what technologies they use, and how they handle a downtime situation.
Abuse your SQL server as KeyValue store (+HandlerSocket)
With key_value its easy as KeyValue[‘config’] = {:foo=>:bar} to persist e.g. configuration into your Sql store. And if you want to go 750k-qps-crazy you can activate MySql-HandlerSocket support! check out key_value on github
Testing with Sunspot and Cucumber
After having some headaches testing with sunspot, we brainstormed a pattern to launch a sunspot instance while testing. After successfully using it for a while, we decided to release the pattern as a gem so you can enjoy it. Check out sunspot_test and our blog post http://collectiveidea.com/blog/archives/2011/05/25/testing-with-sunspot-and-cucumber/ describing it.
Simple Database Export and Import With Character Encoding Conversion
There is a gem called ydd that offers really simple import and export of smallish databases. It exports to YAML and then imports to whatever database Rails can connect to. After using YDD a few times I’ve found it easier to pinpoint the cause of problems that occur using taps. [more inside]
Capify-ec2: Generate capistrano namespaces using ec2 tags
Capify-ec2 is a little plugin for capistrano that generates namespaces based on your ec2 tags. Check it out on github: https://github.com/forward/capify-ec2