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New Relic provides RPM which is a plugin for Rails that allows you to monitor and quickly diagnose problems with your Rails application in real time. Check them out at NewRelic.com.
Jeremy McAnally put together an incredibly useful and thorough introduction to some of the big picture changes in Rails 3. It's even got a half dozen or so diagrams if you're not much of a reader. ;) It's worth a look or two if you're planning on sticking with Rails.
Pratik Naik put together a great document on the some deprecations coming down the pipe with Rails 3.1. Yes, Rails 3.1. Specifically, these deprecations revolve around ActiveRecord finders, calculations, and even scopes.
A couple of weeks back, RailsBridge held the Rails 3 BugMash. The purpose was to get developers' feet wet while hunting for outstanding issues with the framework and migration to Rails 3. Bugs were found and patched, write ups were made, and gems and plugins were update or documented. Hopefully you got involved, but if you didn't, you'll still benefit from the effort.
One writeup from the recent BugMash tracked everything involved with migrating an existing Rails 2.3.5 application to the current Rails 3 edge. It covers several important changes and is a useful read if you're planning on doing the same with your application sometime in the near future.
John Nunemaker put together a piece on his solution to page caching an application with no pre-defined routes, layouts, or views. It involves Rails route globbing, a custom routing action called "the" and liberal use of File and Apache rewrites.
This is a commercial OS X app, but if your application is sending out email and you'd like to see exactly what it's doing, it could prove to be useful for you. It provides an email reader (raw and HTML format) as well as a local SMTP server which can be integrated with ActionMailer.
If you use OS X, you probably already use Growl. But there's also a commercial library out there called Prowl, which sends Growl-like notifications directly to your iPhone. And recently, August Lilleaas even wrote a Ruby gem for it. So, if notices are your thing, you can now have your app ping you wherever you go.
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This week we look into Cappuccino and Sprite. We also check out the MacRuby Debugger, Websockets with Cramp, Secure URLs, and Migrating to Rails 3.
Managing music with Ruby, Arid Cache, and Navvy are featured on this episode of Ruby5. Also, Growling your SQL, Hammertime, and Who's Online with Redis are also covered.
Nezumi, Churn, and Reservation are all covered in this episode. We also take a look at loading images in MacRuby and combining GeoKit and SearchLogic.
Phusion Passenger 2.2.9, the RailsBridge Rails 3 BugMash, and the New Relic State of the Stack are all covered in this episode of Ruby5. Also, we touch on RCapture, Quantity.rb and a Net::HTTP Cheat Sheet.
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