When making cross-domain AJAX requests with jQuery (using CORS or xdomain or similar), you will run into issues with HTTP headers:

• jQuery will not set the X-Requested-With header. On your server, requests will not look like AJAX requests (request.xhr? will be false).
• jquery-ujs will not set CSRF headers.

This is by design and improves secu...

Code snippet tested with Rails 2.3

  def index
    # ...
    if request.xhr?
      html = render_to_string(:partial => "list", :layout => false)
      respond_to do |format|
        format.html { render :text => html }
        format.json { render :json => {:html => html, ... } }
      end
    end
  end

Note: Perhaps you ran into ActionView::MissingTemplate error and this card might help. If you call render_to_string within the format.json block, Rails will only look for an index.json template, but not for an `index.erb...

Automagically makes XHR requests work cross-domain by tunneling all communications through an IFRAME on your page.

Note sure if it's a wise idea, but it's a thing now.

The attached post shows some alternative ways to define Strings in Ruby using the percent notation. This can be useful when you'd like to use quotes (") or single-quotes (') in your strings:

%(any alpha-numeric)
%[char can be]
%%used as%
%!delimiter\!! # escape '!' literal
%( (pa(re(nt)he)sis) ) #=> "(pa(re(nt)he)sis)"
%[ [square bracket] ]  #=> "[square bracket]"
%{ {curly bracket} }   #=> "{curly bracket}"
%< <pointy bracket> >  #=> "<pointy bracket>"
%< \<this...

This actually works:

class Klass

  def initialize
    `hi world`
  end

  def `(message)
    puts "Called with backticks: #{message}"
  end
  
end

Klass.new # Prints "Called with backticks: hi world"

Hat tip to @jcoglan.

Spreewald now has a spreewald binary that lists all available steps, optionally filtering them. Example:

$> spreewald

# All Spreewald steps
Given I am on ...
... long list

$> spreewald check

# All Spreewald steps containing 'check'
When I check "..."
When I uncheck "..."
Then the "..." checkbox( within ...)? should be checked
Then the "..." checkbox( within ...)? should not be checked
Then the radio button "..." should( not)? be (checked|selected)

The debugger gem does not seem to be properly working on Ruby 2. Use byebug instead!

Byebug is a simple to use, feature rich debugger for Ruby 2. It uses the new TracePoint API for execution control and the new Debug Inspector API for call stack navigation, so it doesn't depend on internal core sources. It's developed as a C extension, so it's fast. And it has a full test suite so it's reliable. Note that byebug works only for ruby 2.0.0 or newer. For...

The attached RSpec matcher allows for comfortably testing delegation.

Examples

describe Post do
  it { should delegate(:name).to(:author).with_prefix } # post.author_name
  it { should delegate(:month).to(:created_at) }
  it { should delegate(:year).to(:created_at) }
end

Credits go to txus. See the attached link for an RSpec 2+ version.

The material design project for Angular is a complementary effort to the Polymer project's paper elements collection. Our goal is to provide a set of AngularJS-native UI elements that implement the material design system.

The Paper elements are a set of UI elements that implement the material design system.

The adjust-hue function of Sass allows you to change a color's hue, but only relative to its current hue.

adjust-hue(#ffff00, 120)
// => #00ffff
adjust-hue(#444400, 120)
// => #004444

As you can see, we moved our yellow by 120° to cyan. \
But what if you want to move any color to a hue of 120° which is a nice shiny green?

Take this function:

@function set-hue($color, $target-hue)
  $current-hue: hue($color)
  $degree...

Skype has been updated to 4.3 on Linux. This fixes group chat issues with non-linux clients.

If you have previously installed skype via ubuntu packages, you need to remove those fist via

sudo apt-get remove skype skype-bin

Note

Try to install the 32 bit version. In serveral cases this was the way that worked out.

Grab the installer here:

When connecting to multiple (i.e. > 4) servers to dive into logfiles or do security updates, terminator is what you want.
There are several keyboard shortcuts available:

• Ctrl-Shift-E: Split the view vertically.
• Ctrl-Shift-O: Split the view horizontally.
• Ctrl-Shift-P: Focus be active on the previous view.
• Ctrl-Shift-N: Focus be active on the next view.
• Ctrl-Shift-W: Close the view where the focus is on.
• Ctrl-Shift-Q: Exit terminator.
• Ctrl-Shift-X: Enlarge active window...

Automatically builds gems from Bower packages (currently 1700 gems available). Packaged Javascript files are then automatically available in your asset pipeline manifests.

Why we're not using it

At makandra we made a choice to use bower-rails instead. While we believe Rubygems/Bundler to be superior to Javascript package managers, we wanted to use something with enough community momentum behind it that it won't go away in 10 years...

SudoSlider is a simple yet powerful content slider that makes no (or very few) assumptions about your markup and is very customizable.

You can basically embed any HTML into the slides, so you can mix images, videos, texts, and other stuff.

Check out the demos.

Please note:

• There is a ton to configure. Check the demos and read the docs.
• It does not bring styles for prev/next links etc, so you need to style controls yourself (which I consider to b...

If your requests blow up in Ruby or CURL, the server you're connecting to might only support requests with older SSL/TLS versions.

You might get an error like: OpenSSL::SSL::SSLError: SSL_connect SYSCALL returned=5 errno=0 state=unknown state

SSL Server Test

This SSL Server Test can help finding out which SSL/TLS versions the server can handle.

Ruby

In Ruby, you can teach Net::HTTP to use a specific SSL/TLS version.

uri = URI.parse(url)

ssl_options = {
   use_ssl: true,
   ssl_version...

Impressive set of design guidelines from Google.

So you're getting an error message like the following, although your Gemfile lists shoulda-matchers and it has always worked:

NoMethodError:
  undefined method `allow_value' for #<RSpec::ExampleGroups::Person::Age:0x007feb239fa6a8>

This is due to Rails 4.1 (specifically, Spring) revealing a weak point of shoulda-matchers -- jonleighton explains why.

Solution

The solution is to follow [the gem's installation guide](https://github.com/thoughtbot/sh...

If you have some file or directory that should trigger a Spring reboot, tell Spring e.g. in config/spring.rb:

Spring.watch 'file.rb'
Spring.watch 'lib/templates'

However, Spring will silently drop paths that do not exist at the time calling #watch. Unless you restart Spring (thereby reloading the watch commands), it won't even watch them once they do exist.

Make sure the watchable paths exist before telling Spring to watch, e.g. with

FileUtils.touch 'file.rb'
FileUtils.mkdir_p 'lib/templates'
Spring.wa...

See screenshot here.

This is great news because network throttling is very painful in Linux.

The features are already in Chrome Canary, so expect them to come to your Chrome sources soon.

Aruba is an extension to Cucumber that helps integration-testing command line tools.

When your tests involve a Rails test application, your tool's Bundler environment will shadow that of the test application. To fix this, just call unset_bundler_env_vars in a Cucumber Before block.

Previously suggested solution

Put the snippet below into your tool's features/support/env.rb -- now any command run through Aruba (e.g. via #run_simple) will have a clean Bundler envir...

When you cannot make Selenium trigger events you rely on (e.g. a "change" event when filling in a form field), trigger it yourself using this step:

When /^I manually trigger a (".*?") event on (".*?")$/ do |event, selector|
  page.execute_script("jQuery(#{selector}).trigger(#{event})")
end

Note that this only triggers events that were registered through jQuery. Events registered through CSS or the native Javascript registry will not trigger.

An all-in-approach to fix the problem of pending AJAX requests dying in the browser when the server ends a test or switches scenarios.

We were able to work around this issue in most projects by doing this instead:

After '@javascript' do
  step 'I wait for the page to load'
end