In case you have sensitive data within your RDS instance, you want to use encrypted connections between your application and...
Recently, we had an interesting lunch-break with the rails 3.1. asset-pipeline in production mode. Daniel Zahn made a...
The colors in Rails log files are helpful when watching them but, since they are ANSI color codes like ^[[4...
Never use raise_error without specifying the Error you expect. expect { do_a_lot_of_complicated_stuff }.to raise_error...
You can use the step definition below to say this: Then the "Last name" field should have an error
When cucumber encounters a failing step in a @javascript feature, the selenium browser window instantly closes. Sometimes you do not...
The technique described in this card has an important caveat: The result of GROUP_CONCAT is truncated to the maximum...
You can use heredoc to avoid endlessly long lines of code that nobody can read. Heredoc strings preserve linebreaks and...
There is a new card about how to do this with the new AWS Command Line Interface
If Rails or Rake are complaining about a missing gem that is listed in your Gemfile.lock and the listed version...
Sometimes you want to use a vanilla Ruby method like a block. You can use Object#method to obtain a...
Sometimes you may need to figure out what branches exist on a remote repository so you can pull them down...
Good guide to different ways you can write CSS selectors that select elements by their attribute values.
features are pre-sold without any option to negotiate what’s important and what may be left out, you inevitably...
This will reduce the filesize of foo and bar to 0 bytes: truncate -s0 foo bar If the files do...
We are consistently having trouble with selenium-webdriver > 2.5.0 where whenever we try to select an option from a Capybara...
When you run rake db:create and get this error message Couldn't create database for {"encoding"=>"utf8", "username"=>"root...
Most likely you run rake and your code is causing an exception which is not the one shown in your...
whatsmydns.net is an online service that allows you to instantly perform a DNS lookup to check a hostnames current IP...
When installing your first formula, Homebrew may complain about not being able to access certain directories. The easiest solution to...
When your Solr seems to be started properly (a process is running with the correct data directory) but never responds...
cURL makes a web request and shows you the response body. You can redirect the response body to /dev/null just...
Consider you have a website vhost listening to www.example.com, redirecting all incoming requests that do not talk about the configured...
ExecJS lets you run JavaScript code from Ruby. It automatically picks the best runtime available to evaluate your JavaScript program...