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How to delete a many-to-many association with Rails
Judging by the number of Ruby on Rails developpers asking themselves this question, this is the missing example of Rails. (It’s not in my Rails reference book, and I’ve never seen any example on any blog.) One solution is to … Continue reading
Get rid of favicon.ico 404 errors with rails
Every time your browser loads an new url, it also request a file called ‘favicon.ico’ in the same subdirectory. This generates a LOT of errors in the Ruby on Rails logs of my app. One way to avoid those errors … Continue reading
has_and_belongs_to_many or has_many :through?
As you may (or may not) know, there are two ways to build a many-to-many (or N-N) relationship with Rails. The first way uses has_and_belongs_to_many in both models. You’ll have to create a join table that has no corresponding model … Continue reading
Creating Rails Plugins
Just a link to “The Complete Guide to Rails Plugins” which is a reference.
Visualize your models
The “Visualize Models” plugin By Nils Franzen will generate .png images from the Rails model files : (click to enlarge) : This plugin depends on GraphViz, which you can find here. From your rails application root, run : ruby script/plugin … Continue reading
Autocompletion with Rails and Scriptaculous
Scriptaculous offers a nice autocompletion component that integrates quite well with Ruby on Rails.Here is a link that shows different ways to plug it in your rails application: http://www.slash7.com/articles/2005/08/13/ajaxariffic-au…
Model validation with Rails
Rails has very nice features to validate a model (directly mapped on your database). However it gets sometimes sloppy if you don’t know the exact command to do your validation.Here’s a trick I had a hard time to find. Everybody … Continue reading
Ruby on Rails with Apache2 and FastCGI
apt-get install ruby wget http://rubyforge.org/frs/download.php/3463/rubygems-0.8.8.tgz tar vxzf rubygems-0.8.8.tgz cd rubygems-0.8.8 ruby setup.rb gem update gem install rails