Ruby class layout allowing a funny call combination

gistfile1.txt

class Foo

  def calculate_for_events(events)
    @events = events
    self
  end

  def between(time)
    @start_time = time
    self
  end

  def and(time)
    @end_time = time
    self
  end

  def in_chunks_of(chunk_size)
    @chunk_size = chunk_size
    self
  end

  def minutes
    do_something()
  end

end

Erlaubt Aufrufe wie diesen:

result = Foo.calculate_for_events([e1, e2]).between(Time.now-86400).and(Time.now).in_chunks_of(5).minutes