Go to Settings Manager / Keyboard / Application Shortcuts Add a shortcut for the Print key that calls xfce4-screenshooter -f
In Rails 2, when calling instance_eval or instance_exec on a scope, the scope will fetch its records from...
If you have a PNG and want to know a pixel's alpha channel value, you can use Gimp:
Unlike in Gnome, there is no graphical tool to set a mouse cursor in Xfce. Run this on a terminal...
So you are debugging like a boss and lost track of where you actually are in your code? No problem...
Freetile is a plugin for jQuery that enables the organization of webpage content in an efficient, dynamic and responsive layout...
I am talking about development speed. When your application starts growing and you start adding gems, it starts to take...
As the title says: this jQuery plugin creates bar charts from HTML tables. It comes in some different flavors.
The gem author Jonas Nicklas highlights in a Google Groups post that the release is not backwards compatible to 1...
The very useful andand gem does not play very nice with Ruby's SimpleDelegator (or vice versa). This following will...
A technique to vastly reduce the number of join model records that need to be stored in the database.
If you get a stacktrace complaining about uninitialized constant MysqlCompat::MysqlRes a system library update might broke your gem.
This is super stupid: In the Thunar file manager, select the file Go to File / Properties / Open With (WTF!)
Since I use this a lot in my daily work and there were no scripts working properly for me, I...
Setup the mirror by following the steps described here. If you want to enable OS upgrades using do-release-upgrade...
While you can set your own font in your terminal or other tools, it will not change the default "Monospace...
The classical scenario: There's a parent div element and you want to center some arbitrary child element vertically inside...
When you have two models in a has_many, has_one or belongs_to association, the :inverse_of option in...
Modern cameras often produce JPEGs that have a "I should be rotated 90° to the left" flag. If you process...
Capybara gives you two different methods for executing Javascript: page.evaluate_script("$('input').focus()") page.execute_script("$('input').focus()")
JavaScript engines such as Google’s V8 (Chrome, Node) are specifically designed for the fast execution of large JavaScript applications...
Rarely, you might want to rebuild all gems with native extensions, because they might be compiled against outdated system libraries...
Installation differs slightly from older versions, please check the README.
YourClass.reflect_on_all_associations.map(&:name) Get the class name by calling class_name, or the type of the association (belongs_to, has_many...