photomix/config/initializers/to_url.rb

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String.class_eval do
def to_url
self.parameterize
end
def linkify
result = self.downcase
result.gsub!(/&(\d)+;/, '') # Ditch Entities
result.gsub!('&', 'and') # Replace & with 'and'
result.gsub!(/['"]/, '') # replace quotes by nothing
result.gsub!(/\W/, ' ') # strip all non word chars
result.gsub!(/\ +/, '-') # replace all white space sections with a dash
result.gsub!(/(-)$/, '') # trim dashes
result.gsub!(/^(-)/, '') # trim dashes
result.gsub!(/[^a-zA-Z0-9\-]/, '-') # Get rid of anything we don't like
result
end
def linkify!
self.replace(self.linkify)
end
end