module ActiveSupport::Inflector

def parameterize(string, sep = '-')

# => Donald E. Knuth
<%= link_to(@person.name, person_path(@person)) %>

# => #
@person = Person.find(1)

end
end
"#{id}-#{name.parameterize}"
def to_param
class Person

==== Examples

Replaces special characters in a string so that it may be used as part of a 'pretty' URL. 
def parameterize(string, sep = '-')
  # replace accented chars with their ascii equivalents
  parameterized_string = transliterate(string)
  # Turn unwanted chars into the separator
  parameterized_string.gsub!(/[^a-z0-9\-_]+/i, sep)
  unless sep.nil? || sep.empty?
    re_sep = Regexp.escape(sep)
    # No more than one of the separator in a row.
    parameterized_string.gsub!(/#{re_sep}{2,}/, sep)
    # Remove leading/trailing separator.
    parameterized_string.gsub!(/^#{re_sep}|#{re_sep}$/i, '')
  end
  parameterized_string.downcase
end