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kinopyo/gist:2426829

Created April 20, 2012 07:23
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Ruby: Get module name or class name without module
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gistfile1.rb
n = Notification::Answer.new
n.class.name.split('::').last || ''
# => "Answer"
n.class.name.split('::').first || ''
# => "Notification"
@phstc
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phstc commented Jul 23, 2013

Another way...

n = Notification::Answer.new
n.class.to_s.gsub(/^.*::/, '')
# => "Answer"
n.class.to_s.gsub(/::.*/, '')
#=> "Notification"

@rob-murray
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Or with ActiveSupport in Rails;

n = Notification::Answer.new
# => "Answer"
n.class.name.demodulize

@MrPlazmaDude
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class_name

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ghost commented Feb 28, 2018

An update on the comment from @phstc that works for nested modules:

n = Foo::Bar::Bazz.new

n.class.to_s.gsub(/^.*::/, '')
# => "Bazz"
n.to_s.gsub(/(.*)::.*/, '\1')
# => "Foo::Bar"

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