gistfile1.txt

class EnrollmentAcademicYearsCreator
  def initialize(enrollment)
    self.enrollment = enrollment
  end

  def create
    enrollment_academic_year = EnrollmentAcademicYear.new

    enrollment_academic_year.enrollment = enrollment
    enrollment_academic_year = enrollment.pre_enrollment
    enrollment_academic_year = enrollment.turn        //delegate
    enrollment_academic_year = enrollment.stage       //delegate

    EnrollmentAcademicYears.create(enrollment_academic_year)
  end

  def self.create(enrollment)
    new(enrollment).create
  end
end

na linha 14, poderia ser:

enrollment_academic_year.save

e pra delegar usa o :prefix => true

dai ficaria assim, nas linhas 11 e 12

enrollment_academic_year = enrollment.pre_enrollment_turn
enrollment_academic_year = enrollment.pre_enrollment_stage