Ruby on Rails Custom Migration Generator

Question

I\'m creating a Rails gem that integrates closely with Active Record. The gem requires a number of fields to be defined. For example:

class User < ActiveRecor         


        

Answer 1

I consider t.attached similar to t.references in a polymorphic association.

With reference to the references method you can have something like below

def attached(*args)
  options = args.extract_options!
  column(:avatar_identifier, :string, options)
  column(:avatar_extension, :string, options)
  column(:avatar_size, :integer, options)
end

You might like to extend ActiveRecord::ConnectionAdapters::TableDefinition
Have look at this http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/TableDefinition.html#method-i-references