method

underscore

v2.0.3 - Show latest stable - 1 note - Class: Inflector

1.0.0 (0)
1.1.6 (0)
1.2.6 (35)
2.0.3 (0)
2.1.0 (3)
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
7.1.3.4
What's this?

underscore(camel_cased_word) public

The reverse of camelize. Makes an underscored form from the expression in the string.

Changes ’::’ to ’/’ to convert namespaces to paths.

Examples

  "ActiveRecord".underscore #=> "active_record"
  "ActiveRecord::Errors".underscore #=> active_record/errors

Show source

# File activesupport/lib/active_support/inflector.rb, line 175
  def underscore(camel_cased_word)
    camel_cased_word.to_s.gsub(/::/, '/').
      gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
      gsub(/([a-z\d])([A-Z])/,'\1_\2').
      tr("-", "_").
      downcase
  end

September 24, 2009 - (>= v2.2.1)

0 thanks

This method has been moved

This method has been moved to ActiveSupport::Inflector#underscore

underscore

Related methods

This method has been moved