Lets say you need to make a change to a commit OLD_COMMIT, but this is not the most recent...
You can get YAML.load to instantiate any Ruby object by embedding the desired class name into the YAML code. E.g...
If your controller spec never reaches your controller code: Make sure you are signed in. Make sure you are actually...
Use the Launchy gem: Launchy.open('http://www.ruby-lang.org/')
To temporarily change the current working directory in Ruby, call Dir.chdir with a block. The previous working directory will be...
The first thing you need to understand is that the purpose of refinements in Ruby 2.0 is to make monkey...
If you need to do calculations inside the database and can not use Ruby objects you may run into problems...
When a has_many association basically serves to store a list of associated strings (tags, categories, ...), it can be convenient...
This card explains how to install RubyMine for the first time. If you want to upgrade an existing RubyMine installation...
When rendering a partial with the :collection option, you are automatically provided with a counter variable inside the partial template...
Because Nokogiri needs to be compiled and dynamically linked against both libxml2 and libxslt, it has gained a reputation for...
When you just went through a long debug-fest and infested your code with dozens of debug messages, it can...
Have you guys ever done the math on that? You asked or allowed for 24000 interruptions from literally every human...
Note that this card is very old. You might want to use ActiveType for your auto-coerced virtual attributes instead...
Don't insert table rows in a Rails database migration. This will break tests that expect that database to be...
E.g. when you're using a tagging gem, you have seen virtual attributes that get and set a string array...
In order to go back one page in your Cucumber tests, you can use the following step definition for Capybara...
To change a commit message of the most recent (unpushed) commit, you can simply use git commit --amend -m 'new...
Plugins (and gems) are typically tested using a complete sample rails application that lives in the spec folder of the...
This step tests whether a given select option comes preselected in the HTML. There is another step to test that...
You should never transmit sensitive data without encryption. Being logged in somewhere constitutes transmitting sensitive data. For Pivotal Tracker:
This is non-trivial because you need to fake event objects and require different code for different browsers. Luckily, there...
When you use will_paginage to paginate a scope, and you want to obtain the total number of records matched...
Fixes all Flash elements on a page so that they heed DOM stacking order