The code below shows a method #validate which uses Nokogiri to validate an XML document against an XSD schema. It...
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...
Are you adding a "Then show me the page" and re-run Cucumber whenever there is a failing scenario? Don...
Call geordi clean from a project root to remove unused and unnecessary files inside it. This script is part of...
You can usually just use the eq matched to compare two numbers: expect(deal.total).to eq(120)
Ruby's net/http is setup to never verify SSL certificates by default. Most ruby libraries do the same. That means...
Use the htmlentities gem. Encoding works like this: require 'htmlentities' coder = HTMLEntities.new string = "<élan>" coder.encode(string) # => "<élan>"
Use the Launchy gem: Launchy.open('http://www.ruby-lang.org/')
When a has_many association basically serves to store a list of associated strings (tags, categories, ...), it can be convenient...
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...
Plugins (and gems) are typically tested using a complete sample rails application that lives in the spec folder of the...
To install webmock 1.5.0: sudo gem install webmock --version "=1.5.0" or sudo gem install webmock -v "=1.5.0"
As a user of Bundler you have spent significant time looking at this message: Fetching source index for http://rubygems.org...
Given this class: class Foo class Bar end end If you want to clean up this code with the modularity...
This is a bash script for those of you who need to install all gems for all projects (e.g. to...
After switching to Rails 3 you may get a LoadError with the following message when trying to use your application...
You will need to upgrade to RSpec >= 2 and rspec-rails >= 2 for Rails 3. Here are some hints to...
I prefer the application that I'm currently working on to be reachable at http://localhost/. So when I switch...
Be careful when memoizing a method that returns a scope, e.g.: def variants scoped(:conditions => { :name => name }) end memoize :variants...
The ancestry gem allows you to easily use tree structures in your Rails application. There is one somewhat unobvious pitfall...
You need to install the following packages before you can build the Nokogiri gem: sudo apt-get install libxml2-dev...
Even when you're using bundler, it might be significant in which order your gems are listed in your Gemfile...