I had some problems with Git and the file spec/fixtures/ČeskýÁČĎÉĚÍŇÓŘŠŤÚŮÝŽáčďéěíňóřšťúůýž. After pulling the latest commits, it would show that...
Ruby's private keyword might do a lot less than you think. "private" does not apply to class methods defined...
When two classes implement the same behavior (methods, callbacks, etc.), you should extract that behavior into a trait or module...
Box shadows are awesome. Unfortunately they are also very costly to render. You will rarely notice the rendering time on...
Capistrano 2 brings the shell command which allows you to run commands on your deployment targets. There is also invoke...
Simply give the select helper an option :disabled, passing either a single value or an array. You need to specify...
So you're hunting down a regression (or just a bug) and want to use git bisect to find out...
Exception notifications contain a lot of information: Backtraces, HTTP headers, etc. exception_notification tries its best to format this wall...
The new exception_notification has awesome options like :ignore_crawlers => true and :ignore_if => lambda {...
...}. These options should be helpful...
We tend to use database transactions as a magic bullet to get rid of all our concurrency problems. When things...
Sometimes in the course of development you may need to mock HTTP responses. This is a simple service to return...
Consul 0.9 comes with many new features to optimize powers that only check access to a given record. e.g. Power.current.post...
Ruby 1.9 brings a shorter way to define lambdas using the -> operator: twice = -> (x) { 2 * x } twice.call(5) # => 10
The cookies object in your controllers and views is a ActionController::CookieJar and even though that class inherits from Hash...
$RANDOM on bash returns a random integer between 0 and 32767. echo $RANDOM 9816 echo $RANDOM 30922
Using CSS sprites for background images is a technique for optimizing page load time by combining smaller images into a...
Next time you have to do more than trivial CSS changes on a project, you probably want to have live...
Set the hash to a dummy hash which doesn't hit any id at your page, for example: window.location.hash = "_";
You can use xmllint to pretty-print ugly XML files on your terminal. Just say: xmllint --format file.xml
Remember why preloading associations "randomly" uses joined tables or multiple queries? If you don't like the cleverness of this...
A great and enjoyable introduction into the concept of the web and about what HTTP was designed for. The original...
1. Saving files to a directory that is not shared between deploys or servers If you save your uploads to...
This card shows how to upgrade a Rails 2 application from Rails 2.3.8 through every single patch level up to...
Active Record's select method allows you to make use of the power of MySQL select statements. On the one...