new (ActiveRecord::DynamicFinderMatch)

    # File lib/active_record/dynamic_finder_match.rb, line 8
        def initialize(method)
          @finder = :first
          case method.to_s
          when /^find_(all_by|last_by|by)_([_a-zA-Z]\w*)$/
            @finder = :last if $1 == 'last_by'
            @finder = :all if $1 == 'all_by'
            names = $2
          when /^find_by_([_a-zA-Z]\w*)\!$/
            @bang = true
            names = $1
          when /^find_or_(initialize|create)_by_([_a-zA-Z]\w*)$/
            @instantiator = $1 == 'initialize' ? :new : :create
            names = $2
          else
            @finder = nil
          end
          @attribute_names = names && names.split('_and_')
        end