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...
Use this scope: class Stick named_scope :shuffled, lambda { last_record = last { :conditions => [ 'id >= ?', rand(last_record.id) ] } if last_record }
This note describes a Cucumber step definition that lets you test whether or not a CSS selector is present on...
Ctrl + R Search commands you entered previously. Press Ctrl + R again to search further back, Ctrl + Shift + R searches forward...
Compresses JavaScript.
Thanks to habits engrained by Rails 2’s link_to_remote and remote_form_for, we expect that Rails 3...
This note describes how to setup a box running Ubuntu to share its Internet connection with another PC.
Terminus is a Capybara driver where most of the driver functions are implemented in client-side JavaScript. It lets you...
CONCAT('foo', 'bar', NULL) = NULL the NULL always wins in MySQL. If you would rather treat NULL as...
Sometimes you inherit a non Rails or non Rack based web app such as PHP, Perl, Java / JEE, etc. I...
Use this MySQL command to show further info about a table: SHOW CREATE TABLE tags; This will output a table...
You can now add an :inverse_of option to has_one, has_many and belongs_to associations.... Without :inverse_of...
This returns the name (including path) of your current layout: response.layout => "layouts/admin" # inside views that are using the 'admin' layout...
When doing a presentation you may want to hide your desktop icons. You can switch them off (or back on...
After switching to Rails 3 you may get a LoadError with the following message when trying to use your application...
You might find that your Passenger ignores all RailsSomething directives in the vhost for your new Rails 3 application. The...
In rare cases you might need something like form_for (for using form builder methods on the resulting block element...
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...
When using form_for you can give the form's target URL either as a string or an array:
The timepicker addon adds a timepicker to jQuery UI Datepicker, thus the datepicker (jQueryUI) is required for using any of...
I’m going to list assumptions your systems probably make about names. All of these assumptions are wrong. Try to...
If you previously used version 2.x of Thunderbird and upgraded to 3.x (for example through an Ubuntu release...