method

constantize

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What's this?

constantize(camel_cased_word) public

Constantize tries to find a declared constant with the name specified in the string. It raises a NameError when the name is not in CamelCase or is not initialized.

Examples

  "Module".constantize #=> Module
  "Class".constantize #=> Class

Show source

# File activesupport/lib/active_support/inflector.rb, line 245
  def constantize(camel_cased_word)
    unless /\A(?:::)?([A-Z]\w*(?:::[A-Z]\w*)*)\z/ =~ camel_cased_word
      raise NameError, "#{camel_cased_word.inspect} is not a valid constant name!"
    end

    Object.module_eval("::#{$1}", __FILE__, __LINE__)
  end

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

2 thanks

This method has been moved

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

constantize

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This method has been moved

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