Given group size If you would like to split a Ruby array into pairs of two, you can use the...
There are times when you need to send SQL to the database, like this: def self.some_count(field) field = connection.quote...
When defining a trait using the Modularity gem, you must take extra steps to define constants to avoid caveats (like...
In case https://www.rubydoc.info/ is to slow or offline, you can also read a gem documentation offline. Start a server...
I love ETags, but there’s something that annoys me: most implementations revolve around pulling a record out of a...
If you're on Ubuntu: sudo apt-get install ruby-dev On other platforms: Look for a package containing ruby...
This is for those who already own an SSL certificate (e.g. using it in the Apache HTTP Server) and need...
You cannot use Array#join on an array of strings where some strings are html_safe and others are not...
When you are using Apache for development, it still accepts connections from everyone in the same network as you.
Update: This trick probably isn't very useful anymore in Ruby 2.x. The Ruby GC has improved a lot...
If you’re testing the behavior of deprecated code in your Ruby project, the warning messages littered throughout your spec...
Git allows you to do a binary search across commits to hunt down the commit that introduced a bug.
If you want to iterate over a Range, but only look at every n-th element, use the step method...
Our collection of the most useful Cucumber steps, Spreewald, now supports exact matching of form fields and lets you use...
When your block takes an argument that should have an default, only in Ruby 1.9 you can say: block = lambda...
This must be one of the coolest, yet quite unknown, technique in Ruby. For certain types of problems (e.g. when...
In regular expressions you can use the zero-width pattern \b to match the beginning or end of a word...
In RSpec 2 shared_examples_for can have parameters. You can simply hand over arguments from it_behaves...
While you can use Capybara matchers like have_css and have_content for expectations, they are not too helpful for...
How to create an infinitely nestable hash that always defaults to a new hash if a key does not map...
Ruby's net/http is setup to never verify SSL certificates by default. Most ruby libraries do the same. That means...
When you eagerly load an association list using the .include option, and at the same time have a .where on...
Sometimes, you just need to shoot from the hip…or deploy your local changes without committing them. Put this snippet...
If you want to find out whether a Class object is directly inheriting from another class, use superclass: ActiveRecord::RecordNotFound.super...