How do I get the name of a Ruby class?

Question

How can I get the class name from an ActiveRecord object?

I have:

result = User.find(1)

I tried:

result.class
# =&g         


        

Answer 1

In my case when I use something like result.class.name I got something like Module1::class_name. But if we only want class_name, use

result.class.table_name.singularize

Answer 2

If you want to get a class name from inside a class method, class.name or self.class.name won't work. These will just output Class, since the class of a class is Class. Instead, you can just use name:

module Foo
  class Bar
    def self.say_name
      puts "I'm a #{name}!"
    end
  end
end

Foo::Bar.say_name

output:

I'm a Foo::Bar!

Answer 3

Here's the correct answer, extracted from comments by Daniel Rikowski and pseidemann. I'm tired of having to weed through comments to find the right answer...

If you use Rails (ActiveSupport):

result.class.name.demodulize

If you use POR (plain-ol-Ruby):

result.class.name.split('::').last

Answer 4

You want to call .name on the object's class:

result.class.name

Answer 5

Both result.class.to_s and result.class.name work.