http://www.dansketcher.com Dan Sketcher on Rails, computers, and other junk Wed, 09 Apr 2008 15:10:07 +0000 http://backend.userland.com/rss092 en Sometimes, you want to run a single migration by hand (to test it maybe...) You can do this from the command line: ruby script/runner 'require "db/migrate/005_create_blogs"; CreateBlogs.migrate(:down)' ruby script/runner 'require "db/migrate/005_create_blogs"; CreateBlogs.migrate(:up)' http://www.dansketcher.com/2008/03/25/running-one-migration-by-hand/ When I am developing page actions, I quite often find myself approaching a standard get/post action in the same way. This is particularly because I want to validate a number of ActiveRecord models, only progressing if they are ALL valid, and showing all errors at once Of course, that means that ... http://www.dansketcher.com/2008/03/09/drying-up-actions-with-a-page_errorhandler/ One of the things that I like about the .net web application setup is the concept of Master Pages. The most common usage of this is if you have a Home Page that has a slightly different layot from the rest of the site, but you want to share the ... http://www.dansketcher.com/2008/03/07/master-pages-for-rails-or-heirarchial-layouts/ I found this Guide to Electronic Music - it's so comprehensive it makes my head spin... but now when someone ask me what I think of weird music variants I'll be able to give them an answer ;) http://www.dansketcher.com/2007/08/11/guide-to-electronic-music/ Little bit behind the 8-ball on posting this, but I came across this post at AspiringSysadmin.com - ZFS boot without having to manually set it up like you currently have to do with OpenSolaris. NexentaOS is a GNU operating system that uses apt on top of the OpenSolaris kernel and runtime. ... http://www.dansketcher.com/2007/08/09/zfs-boot/ So, JRuby looks pretty cool, and I've got some code written that uses a weird BouncyCastle encryption implementation going in my rails app. Works well, the WAR deployment works (with goldspike) and everything's going swimmingly. Until, of course, I tried to integrate with Another Project that uses the ActiveSalesforce. Behind the ... http://www.dansketcher.com/2007/07/20/jruby-openssl-and-http-request-timeouts-in-activesalesforce/ Aaaaaaaages ago, I wrote a message on the mailing list (before it moved to Google Groups!) about how to integrate Rails and Log4r. Since then a little bit has changed and that way may or may not entirely work any more. Since then, aaaaages ago Jason Rimmer asked me to ... http://www.dansketcher.com/2007/06/16/integrating-log4r-and-ruby-on-rails/ I am working with a legacy database. Usually, the built in rails stuff for table prefixing and primary key changes is enough. Sometimes, it's not. I had a problem with a join table that has Foreign Key names that are tablename_id, but the tables they reference is tablename_id as well. The ... http://www.dansketcher.com/2007/06/13/rails-composite-primary-key-support/ After the last paste-heavy post, I finally got around to doing something about wordpress's formatting of code blocks. This site was very helpful: http://tjulo.blogspot.com/2007/03/wordpress-and-source-code-posts.html So, edit the file wp-includes/js/tinymce/plugins/wordpress/editor_plugin.js. Comment out the section that replaces pre content: /* var startPos = -1; while ((startPos = content.indexOf('', startPos+1); var innerPos = content.indexOf('>', startPos+1); var chunkBefore = content.substring(0, innerPos); var ... http://www.dansketcher.com/2007/06/07/wordpress-code-and-pre-formatting/ For a Salesforce.com integration project, I need to create a SOAP server to accept messages from Salesforce. Seeing as there is no way directly import a wsdl into ActionWebService, I instead used wsdl2ruby from the soap4r distribution to generate server stubs. Then, I used ActionWebService to emulate the same service. ... http://www.dansketcher.com/2007/06/06/rails-actionwebservice-soap-error-no-valid-method-call-missing-method-name/