http://stuff-things.net Paradise is exactly like where you are right now only much, much better... Wed, 03 Sep 2008 16:35:03 +0000 http://backend.userland.com/rss092 en So, you have a column in your database you can't update after the record is created. Not don't want to update, but can't. Specifically, you might have a column that is protected by a trigger, which will cause an error if that column is included in a ... http://stuff-things.net/2008/09/03/dealing-with-read-only-fields-and-partial-updates-in-rails-1x/ Rick Olson's attachment_fu is a great plugin for attaching files documents to Rails models. It's a rewrite of his acts_as_attachment plugin. While it can handle any kind of file data, most commonly, it is used for attaching images; as a result attachment_fu handles automatic resizing of images, and ... http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/ Previously I wrote about how to use public key encryption to automatically encrypt data using Ruby (and thus Rails). Because this method can encrypt data without a password, it's very useful for securing information received from a form, without the person entering the from having to do anything special. ... http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/ In Encrypting Sensitive Data with Perl I wrote about how to use public key encryption to automatically and securely encrypt information with Perl. This allows you encryption things like credit card numbers, bank routing information, or that winning PowerBall number in a unattended fashion. Typically, you would ... http://stuff-things.net/2007/06/11/encrypting-sensitive-data-with-ruby-on-rails/ It's not uncommon to have information submitted through a web form that you need to save, but don't want to have lying around in plain text. Credit card numbers, bank routing information, missile launch codes, and so on. The trick is to do this in a unattended ... http://stuff-things.net/2007/05/02/encrypting-sensitive-data-with-perl/