Patch scaffolding_extensions gem for supporting enum fields

patch for enum fields in scaffolding_extensions.rb

# The patch
# In the scaffold_field_tags method in helper.rb

when :enum
  # array of select options will be passed in the options hash for this column
  select_options = options[:select_options] || []
  # each item in select_options is like [ option_label, option_value ]
  s = {value.to_s => "selected='selected'"}
  options.delete :select_options #we don't want to show this as an attribute in the generated HTML
  "<select #{scaffold_options_to_html(options)}><option></option>#{select_options.collect{|o| "<option value='#{o[1]}' #{s[o[1]]}>#{o[0].to_s}</option>"}.join}</select>"

#################################
# In my models, I now do this:
#Make the field for status a dropdown instead of plain text field
@scaffold_column_types = {:status => :enum}
@scaffold_column_options_hash = { :status => {:select_options => [["ENABLED",'ENABLED'],["DISABLED",'DISABLED'],["PENDING_APPROVAL",'PENDING_APPROVAL'],["REJECTED",'REJECTED']] } }