turn.js is a plugin for jQuery that adds a beautiful transition similar to real pages in a book or magazine for HTML5.

I tested it successfully on Chrome, Firefox and IE9.

Some helpers for poking around at your Capybara driven browser's cookies in integration tests.

Supports Capybara's bundled drivers (rack-test, Selenium Webdriver), and adapters for other drivers may be added.

You can use text-overflow to truncate a text using CSS but it does not fit fancy requirements.

Here is a hack for the special case where you want to truncate one of two strings in one line that can both vary in length, while fully keeping one of them. See this example screenshot where we never want to show an ellipsis for the distance:

![Flexible overflow with optional ellipsis](https://makandracards.com/makandra/5885-a-flexible-overflow-ellipsis/at...

When using Rails to truncate strings, you may end up with strings that are still too long for their container or are not as long as they could be. You can get a prettier result using stylesheets.

The CSS property text-overflow: ellipsis has been around for quite a long time now but since Firefox did not support it for ages, you did not use it. Since Firefox 7 you can!

Note that this only works for single-line texts. If you want to truncate tests across multiple lines, use a JavaScript solution like...

Possible Reason 1: parallel_tests - running more processes than features

If you run old versions of parallel_tests with more processes than you have Cucumber features, you will get errors like this in unexpected places:

This is a bug caused by multiple processes running the same features on the same database.

The bug is fixed in versions 0.6.18+.

Possib...

Consider you have a file that uses improper encoding on special characters. Example: You see the latin1 version "ñ" for the UTF-8 "ñ" but the file itself is stored as UTF-8 (meaning that the UTF-8 bytes are doubly encoded).

You can fix that easily with Vim:

vim broken.file

Now you tell vim that the file's encoding is actually latin1 (you can see what Vim is currently using by saying only :set fileencoding):

:set fileencoding=latin1

Write and reload the file:

:w
:e

All should be good now.

Adjust to your n...

Chrome now supports desktop notifications using WebKit's webkitNotifications API. This means you can create popup bubbles from Javascript.

The step definition below lets you say:

 Then I should see a field "Password"
 But I should not see a field "Role"

Here is the step definition:

Then /^I should( not)? see a field "([^"]*)"$/ do |negate, name|
  expectation = negate ? :should_not : :should
  begin
    field = find_field(name)
  rescue Capybara::ElementNotFound
    # In Capybara 0.4+ #find_field raises an error instead of returning nil
  end
  field.send(expectation, be_present)
end

Note that you might have to adapt the step defi...

Sometimes you need to restart the Gnome panel, e.g. when you installed a new Gnome panel widget but the widget list was cached before.

You often don't want to do sign out and back in for this.
Instead, just run:

killall gnome-panel

This will terminate all gnome-panel processes. On my machine (Ubuntu 11.04) the panel then restarted itself after a moment.

If the panel does not automatically come back, press Alt+F2 to bring up the Gnome "run" box and start gnome-panel from there.

ProgressBar is a simple Ruby library for displaying progress of long-running tasks on the console. It is intended to be as simple to use as possible.

If Sunspot does not work and fails with a backtrace similar to this:

/project/shared/bundle/ruby/1.8/gems/rsolr-1.0.6/lib/rsolr/client.rb:227:in `adapt_response'
/project/shared/bundle/ruby/1.8/gems/rsolr-1.0.6/lib/rsolr/client.rb:164:in `execute'
/project/shared/bundle/ruby/1.8/gems/rsolr-1.0.6/lib/rsolr/client.rb:158:in `send_and_receive'
(eval):2:in `post'

then the schema.xml that is shipped with Sunspot is not loaded into Solr correctly.

Often the latter can be found in /etc/solr/conf/schema.xml. So copy Sunspo...

Most of the JavaScript snippets have code that manipulates the DOM. For that reason dom manipulating javascript code should have been executed after the DOM has loaded completely. That means when the browser has finished HTML parsing and built the DOM tree. At that time, you can manipualte the DOM although not all resources (like images) are fully loaded.

The following snippets show how you can do this with plain JavaScript, jquery or prototype ([dom ready ...

If you want to move a complete commit from one repository to another (and you don't want to add it as a remote), you can use these steps:

Create a patch

In the source repository, create a patch based on the commit by running

git format-patch SHA1_OF_COMMIT~..SHA1_OF_COMMIT # Note the ~
git format-patch HEAD~ # Shortcut for the latest commit

This will create a .patch file that describes this commit.

Apply the patch

In the target repository, restore the commit from the patch file with

gi...

If you defined your association via

class Article
  belongs_to "category"
end

and you try

Article.scoped(:include => :category)

you will get an error message

in `preload_one_association': Association named 'category' was not found; perhaps you misspelled it? (ActiveRecord::ConfigurationError)

Solution

Always define your assocations via symbol

class Article
  belongs_to :category
end  

In order to chain greps on log files that are opened via tail -f test.log you have to use the --line-buffered command line option for grep.

Imagine you have the following content in your log file.

# content for log/test.log
test foo
bar
test foo bar baz
bla

Now if you would like to grep for lines that contain foo but not bar, you can use the following command chain:

$ tail -f log/test.log | grep --line-buffered "foo" | grep -v "bar"

Output:
test foo    

Saying git diff only shows unstaged changes relative to the index (or HEAD if the index is empty, alternatively any hash or branch you supplied) but leaves out files you already staged for the next commit.

To diff your added changes with HEAD, say:

git diff --cached

Effectively, this gives you the changes you will commit when you run git commit without the -a switch.

The following snippet demonstrates how you could create excel files (with spreadsheet gem) and format columns so that they follow a specific number format like currencies or dates do.

require 'rubygems'
require 'spreadsheet'

Spreadsheet.client_encoding = 'UTF-8'

book = Spreadsheet::Workbook.new
sheet1 = book.create_worksheet :name => 'test'

money_format = Spreadsheet::Format.new :number_format => "#,##0.00 [$€-407]"
date_format = Spreadsheet::Format.new :num...

This describes all the steps you'll need to get Solr up and running for your project using the Sunspot gem.

Prepare Sunspot on your development machine

What you want in your Gemfile:

gem 'sunspot_rails'
gem 'sunspot_solr'
gem 'progress_bar' # for sunspot:solr:reindex

Now define what should be indexed within Solr from your ActiveRecord models, e.g.,

class Article << ActiveRecord::Base

  searchable do
    text :title
 ...

You want Photoshop to always open files with "full" (100%) zoom and not try to fit them to your screen?
Tough luck -- there is no setting for this.

But, after opening the file, you can zoom to 100% by:

• pressing Ctrl-Alt-0 (on Windows; for Mac it's Meta-Alt-0)
• or double-clicking the magnifier tool icon.

Look up HTML5 features, know if they are ready for use, and if so find out you should use them – with polyfills, fallbacks or as they are.

Views are normally (for good reason) not rendered in controller specs. If you need it to happen, use:

RSpec 1 (Rails 2):

integrate_views

RSpec 2 (Rails 3):

render_views

Note that you can't use that inside it blocks but need to put it in the nesting example group, like this:

    describe '#update' do
      cont...

Gem to get Rails 3's new ActiveRecord query interface (where, order) and the new scope syntax (chaining scope definitions) in Rails 2.

You also get #to_sql for scopes.

Gem to get Ruby 1.9 features in Ruby 1.8.