Parse wufoo callback url data in rails

wufoo_callback_rails.rb

#Parse to get {"Location"=>"Field1", "First"=>"Field104", "Last"=>"Field105", "Email"=>"Field106"} Don't forget to check "Include Field and Form  Structures with Entry Data (?)" in wufoo webhook setting.
 
title_to_labels = {}
fields_structure = MultiJson.decode(data['FieldStructure'])
   
fields_structure["Fields"].each do |field_structure|
  unless field_structure.keys.include?('SubFields')
    title_to_labels[ field_structure["Title"] ] = field_structure["ID"]
  else
    field_structure["SubFields"].each do |sub_field_structure|
       title_to_labels[ sub_field_structure["Label"] ] = sub_field_structure["ID"]
    end
  end
end 
 
# Get values for each field
values = Hash[title_to_labels.collect{ |field|
    [field[0].gsub(/\s+/, "_").delete('^a-zA-Z0-9_').downcase.to_sym, params[field[1]] ]
  }]