controller.rb

class DemandsController < CrudUpdatedController
  def new
    object = build_resource
    object.academic_year = current_academic_year

    super
  end

  private

  def create_resource(object)
    object.transaction do

      if super
        SchoolStatusManager.set_status!(object.school)
      end
    end
  end
end

migration.rb

class AddStatusToSchools < ActiveRecord::Migration
  def change
    add_column :educacao_schools, :status, :string

    School.all.each do |school|
      school.update_attribute :status, school.school_status
    end
  end
end

poro.rb

class SchoolStatusManager
  def self.set_status!(school)
    school.update_attribute :status, school.school_status
  end
end

school.rb

def school_status
    if enrollment_begins_state?
      SchoolState::ENROLLMENT_BEGINS
    elsif pre_enrollment_state?
      SchoolState::PRE_ENROLLMENT
    elsif authorized_course_state?
      SchoolState::AUTHORIZED_COURSE
    end
  end