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...
Custom matchers are a useful RSpec feature which you can use to DRY up repetitive expectations in your specs. Unfortunately...
In Rails 5 you can say: ApplicationController.render( :template => 'users/index', :layout => 'my_layout', :assigns => { users: @users } ) If a Request Environment is...
RubyLTS is a long term supported fork of Ruby 1.8 that will continue to receive security updates for the forseeable...
Box shadows are awesome. Unfortunately they are also very costly to render. You will rarely notice the rendering time on...
Simply give the select helper an option :disabled, passing either a single value or an array. You need to specify...
The new exception_notification has awesome options like :ignore_crawlers => true and :ignore_if => lambda {...
...}. These options should be helpful...
To make this go away I had to wipe my RubyMine settings (~/.RubyMine) and configure everything again. Fun.
We tend to use database transactions as a magic bullet to get rid of all our concurrency problems. When things...
Consul 0.9 comes with many new features to optimize powers that only check access to a given record. e.g. Power.current.post...
The linked page lists and explains global Ruby "dollar" variables, such as: $: (load path) $* (ARGV) $? (Last exit status) $$ (PID)
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...
Next time you have to do more than trivial CSS changes on a project, you probably want to have live...
Did you know you can do in-place batch processing with plain ruby? The following script will in-place replace...
Connect to your memcached host. (AWS elasticache is memcached) telnet foohost23.cs2631.0001.euw1.cache.amazonaws.com 11211 Once you're connected, find out which 'slabs...
Set the hash to a dummy hash which doesn't hit any id at your page, for example: window.location.hash = "_";
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...
The Rails secret_token must be unique for each application and any instance of it. If not, someone could exploit...
Coffeescript allows you to create classes whose methods are automatically bound to the correct this. You can do this by...
Merge requests are often rejected for similar reasons. To avoid this, before you send a merge request, please confirm that...