http://blog.atlantistech.com The Atlantis Technology Development Blog Thu, 30 Aug 2007 14:58:15 +0000 http://backend.userland.com/rss092 en In our applications, many of our controllers should only be interacted with via AJAX. This is easy enough to enforce in a controller, using the special verification filter: class PostController < ApplicationController verify :xhr => true, :render => { :text => "This action must be accessed using XMLHttpRequest." } end However, it took ... http://blog.atlantistech.com/index.php/2007/08/30/testing-ajax-requests-in-ruby-on-rails/ To use active record with another database, simply create a new model and name it whatever you would like. For example, If your current Rails App is set up to use the database example_development, and you need table customers from another database, create a new model and name it ... http://blog.atlantistech.com/index.php/2007/03/08/active-record-with-2-databases/ If you use the Active Record Store as your Session Store, keep in mind that it is inserting rows into a database table for each new HTTP session. Over time, this can accumulate a lot of sessions (one of our products had 800,000 after a few months), most of ... http://blog.atlantistech.com/index.php/2006/11/21/cleaning-the-session-store/ A reiteration from Schwuk - log rotation in Ruby on Rails is as simple as an extra line in your config/environment.rb file: RAILS_DEFAULT_LOGGER = Logger.new("#{RAILS_ROOT}/log/#{RAILS_ENV}.log", 20, 10.megabyte) I put this line right BEFORE the Rails::Initializer.The above line will automatically rotate your logs when they hit 10 megabytes, and it will keep ... http://blog.atlantistech.com/index.php/2006/10/24/log-rotation-in-rails/ In this walkthrough, we are going to create an EC2 server, using the pre-existing public images that amazon has so kindly set up for us. Make sure that you are set up and ready to preform ec2 commands and manage images/instances. If you need to set this up, the available ... http://blog.atlantistech.com/index.php/2006/10/17/making-your-own-ec2-server-using-public-images/ Ensure that environment variables are correct, as per the previous post. If the command echo $JAVA_HOME outputs the path of a java binary, you should be all set. ec2-describe-images will describe the various images on your S3 storage that are available: IMAGE ami-5bae4b32 ec2-public-images/getting-started.manifest ... http://blog.atlantistech.com/index.php/2006/10/10/starting-managing-ec2-servers/ Amazon Web Services has recently made available a beta service called the Amazon Elastic Compute Cloud which allows for rapid deployment of virtual servers. As some of the documentation was wrong and some of the resource materials were incomplete, we thought that it might be useful to create a ... http://blog.atlantistech.com/index.php/2006/10/04/amazon-elastic-compute-cloud-walkthrough/