active_record_protected

active_record_alias.rb

# script/generate model Post content:text 

class Post < ActiveRecord::Base

  alias :full_content :content

end

active_record_protected.rb

# script/generate model Post content:text 

class Post < ActiveRecord::Base

    protected
    def content
       "Is content protected?"
    end

end

# should print 'Is content procted' huh?
puts Post.new.send(:content)

respond_to.rb

# script/generate model Post content:text 

class Post < ActiveRecord::Base
end

puts Post.method_defined?(:content)
# false
puts Post.instance_methods.include?('content')
# false
Post.new.content
puts Post.method_defined?(:content)
# true
puts Post.instance_methods.include?('content')
# true

# https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/4317-inconsistent-method_defined-bevahiour