You might have to append the path of the Postgres.app bin directory to your path in order to install the Python driver for Posgres. export PATH=$PATH:/Applications/Postgres.app/Contents/MacOS/bin To find the location of the application try this ...

While writing software it's common to leave comments for your future self. For instance, if you have written some code but realize that it should be refactored to be more efficient, you may place something along the lines of "TODO: change active record fi...

[youtube]http://www.youtube.com/watch?v=sb2xzeWf-PM[/youtube]

The module and class below demonstrate how to use instance methods and class methods from "module mixins". The thing to remember is scope. For instance, to use class methods within instance methods you need to call them from the class itself. This is acco...

If you use a consistent date format often in your Rails applciation, it is worth it to add the format to your application environment. You can do this by adding  it to the bottom of the config/environment.rb file. Time::DATE_FORMATS[:my_custom_format] ...