If you run the show_model script with no arguments, it prints a little tree
showing the object hierarchy:
ActionMailer::Base
Notifier
ActiveRecord::Base
Tag
Posting
Comment
Entry
Preferences
User
Group
Note that, in this example, comments and entries are subclasses of Posting
(using single table inheritance).
More useful, though, is getting a quick reference on what class methods, instance methods, associations, and table columns a model has:
User < ActiveRecord::Base
Class Methods:
login
Instance Methods:
has_access_to?
password_confirmation
password_confirmation=
posts_about
tags
Associations:
has_many Comments
has_many Entries
has_many Groups
has_many Postings
has_many Postings as non_comment_postings
has_one Preferences as preferences
DB Columns:
active (boolean)
admin (boolean)
birth_date (date)
created_on (datetime)
email (string)
first_name (string)
id (integer)
last_login (datetime)
last_name (string)
password (string)
prev_login (datetime)
updated_on (datetime)
Anyways, I thought I’d post this in case it helps anyone else. Should also say
that it currently assumes that you’re in the base RAILS_DIR directory.
Next up is a rails2dot that doesn’t suck.
