use self instead of #read_attribute

[ankit1910]

No description provided.

[rafaelfranca]

Thank you but the behaviour is different. Also this method is not defined on this module neither in their dependencies.

[rafaelfranca]

By different I mean. [] has a cache and we don't want to hit this cache here.

[rafaelfranca]

In fact I'll wait travis to run and check locally before merge. Thanks.

[kirs]

I found that [] doesn't work with ActiveRecord::Store.

class User < ActiveRecord::Base
  store :settings
  store_accessor :settings, :privileges, :servants
end

User.new.servants?
=> NoMethodError

@rafaelfranca do you think that we can switch from [] to public_send(attr_name) here?

[rafaelfranca]

@kirs 👍