With namespace routes in Rails you can easily create a prefix for select resources. For instance, if you have an admin area or an account dashboard you can give logged in users access to methods that are not otherwise available. To use namespaces define t...

Here are a few snippets for cross database queries. It's important to note that you must be explicit in enumerating the columns and types you are querying. Otherwise, things will probably not work as expected. -- enable extension create extension db...

What is Rack? Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and sof...

super easy gem install passenger passenger-install-apache2-module will walk you through the install and remember to copy paths to your apache config file. for passenger i kept it in mods-available/passenger.conf and then linked it to mods-enabled ln -s...

Have you ever gotten this error message when trying to (re)start Apache httpd not running, trying to start (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down If you are running with ...