strip white-space from all attributes

strip-white-space.rb

# Just a few different methods to strip white-space from all attributes on a model.

# method 1 - code from scott moonen
# http://scottmoonen.com/2009/05/08/rails-pattern-trim-spaces-on-input/
module Trimmer
  def self.included base
    base.extend(ClassMethods)
  end

  module ClassMethods
    def trimmed_fields *field_list  
      before_validation do |model|
        field_list.each do |n|
          model[n] = model[n].strip if model[n].respond_to?('strip')
        end
      end
    end
  end
end

require 'trimmer'
class ClassName < ActiveRecord::Base
  include Trimmer
  trimmed_fields :attributeA, :attributeB
end


# method 2 - code found on Stackoverflow
def clean_data
  # trim whitespace from beginning and end of string attributes
  attribute_names().each do |name|
  if self.send(name.to_sym).respond_to?(:strip)
    self.send("#{name}=".to_sym, self.send(name).strip)
  end
end