These commands will directly draw the following to a .png file 1. Database Models 2. Mailer models 3. Observer models 4. Associations (with lines and arrows) 5. Inheritance among classes (for regular models, mailers, and observers) As root user: bash gem install railroad yum install graphviz cd rails_app_root railroad -a -i -M |…
Using this as a guide JLHPBv2: Using Helpers in Models in Rails, you can make a single Module that can be accessed from models, views, and controllers. The helpers automatically created in app/helpers/*_helpers.rb might also be available anywhere as long as you include them. I decided to make the methods in the helper class-scoped…
When I first learned about Rails migration, I immediately thought that dropping down a revision would be something you would do often. In actuality, Rails migrations is more like a version control for databases. Since databases changes require modifications to both code and data, you cannot simply use a source code version control system like Subversion or Sourcesafe. You need a more advanced revisioning system for databases… hence Rails Migrations.