The document defines a User model that has a one-to-many relationship with books and overrides the table and primary key names. It also shows code for adding a nick column to the users table using a migration.

45. class User < ActiveRecord::Base
end

48. class User < ActiveRecord::Base
has_many :books
end

56. class User < ActiveRecord::Base
set_table_name 'user'
set_primary_key 'pkey'
end

66. ITPro

73. • if a==b then; obj.m(); end
• a==b && obj.m
• obj.m if a==b

109. DB (Model)
Scaffold
HTML

112. DB (Model)
Scaffold
HTML

119. class AddNick < ActiveRecord::Migration
def self.up
add_column :users, :nick, :text
end
def self.down
remove_column :users, :nick
end
end