sal_attend.rb

require "rubygems"
require "fastercsv"

class SalAttend
  attr_accessor :file
  attr_accessor :headers

  # Added the parameter here...
  def initialize(filename)
    puts "JSAttend Initialized"
    # and call the open_file method here...
    open_file(filename)
  end

   def open_file(filename)
    puts "Trying to open the file with FasterCSV"
    @file = FasterCSV.open(filename, {:headers => true, :return_headers => true, :header_converters => :symbol})
    @headers = @file.readline
   end

  def print_names
    @file.each do |line|
      puts line[:first_name] + " " + line[:last_name]
    end
  end
end

# Then you'll have to specify the filename here...
jsa = SalAttend.new("event_attendees.csv")
jsa.print_names