If you were one of the unfortunate souls who missed RailsConf this year, I’m sorry for you. If you happened to be at RailsConf but missed Justin Gehtland’s excellent Streamlined tutorial then you are truly of all people most pitiable. On a more serious note, the tutorial was very good … Continue reading
Let’s say we have a method on a model that looks something like this: def last_assignment assignments.find(:first, : order => ‘created_at DESC’) end We call this method several dozen times from various other methods on the model. The problem is, every time we call the method a new database query … Continue reading
I added some long-running integration tests to a Rails application today and quickly began getting irritated that issuing the rake command runs all tests… unit, functional, AND integration. Since I run rake quite frequently, any sizable delay can quickly get annoying. The task that gets executed by rake is the … Continue reading
Something I frequently need to do when deploying a Rails application is determine the current migration version of a database. In the past, I’ve done this by bringing up mySQL and typing: SELECT version FROM schema_info Well, I’m finally tired of doing that so I cooked up this Rake task: … Continue reading
Mike Clark made a recent post on his blog about how to handle Rails versions with Capistrano. Very nice stuff. I’ve put his code samples to immediate use with an app I’m preparing to convert to Rails 1.2.1. I’ve run into some trouble this week, though, as I want to … Continue reading
Ever notice the cruft you get when running Rails tests from the command line? It’s horrible, especially if your project has more than a dozen test files: /opt/local/bin/ruby -Ilib:test “/opt/local/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake/rake_test_loader.rb” “test/unit/activity_test.rb” “test/unit/address_test.rb” “test/unit/application_helper_test.rb” “test/unit/course_calculations_test.rb” “test/unit/course_test.rb” “test/unit/course_type_test.rb” “test/unit/credit_hour_test.rb” “test/unit/email_test.rb” “test/unit/exam_test.rb” “test/unit/gender_test.rb” “test/unit/grade_test.rb” “test/unit/level_test.rb” “test/unit/notifier_test.rb” “test/unit/numeric_test.rb” “test/unit/obfuscator_test.rb” “test/unit/order_test.rb” “test/unit/school_test.rb” “test/unit/string_test.rb” “test/unit/student_test.rb” “test/unit/transcript_test.rb” … Continue reading
Do you routinely test your code? Are you using rcov to run code coverage reports for your tests? If you aren’t, you should be. rcov is a code coverage tool for Ruby that is available as a Gem or a Rails plugin. It can generate text or HTML reports outlining … Continue reading
I attempted to install SVK on my Mac using DarwinPorts yesterday and ran into a strange problem. SVK appeared to compile just fine, but the installer eventually got to a step where it said “Configuring SVK…” and then it just froze. I could still do things on the system, but … Continue reading
Let’s say we’ve created a simple profile page to allow our users to update their e-mail address, locale, time zone, and various other settings. This profile page exposes only those model attributes that we want the user to be able to update. Other attributes on the model should not be … Continue reading