[Feature Request] Boolean methods for STI models

[Matheus Santana]

From the docs:

class Company < ActiveRecord::Base; end
class Firm < Company; end
class Client < Company; end
class PriorityClient < Client; end

Boolean methods would be something like:

company = Company.find(1)
company.firm?
company.client?
company.priority_client?

What about it?

[Allen Madsen]

Typically, when you use STI models it's because the data will be the
same, but the behavior will vary. Because a different class is loaded
based on the STI type, you can handle behavior polymorphically. So
rather than:

if company.firm?
do_thing(company)
end

You would instead do:

company.do_thing

Then each subclass of company would implement the correct behavior for
that case.

For the behavior you described, you may be better served with Rails
enum support: http://api.rubyonrails.org/v4.1/classes/ActiveRecord/Enum.html
Allen Madsen
http://www.allenmadsen.com

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