您可以像这样使用Rails回调和委托方法，例如，您的文件位于app/models/lms/lead_type.rb

# app/models/lms/lead_type.rb
class Lms::LeadType < ApplicationRecord
  has_many :leads, class_name: "Lms::Lead"

  after_update :update_lead_scores, if: :serving_factor_changed?

  private

  def update_lead_scores
    leads.each do |lead|
      lead.update_score_based_on_serving_factor
    end
  end
end

# app/models/lms/lead.rb
class Lms::Lead < ApplicationRecord
  belongs_to :lead_type, class_name: "Lms::LeadType", optional: true

  delegate :serving_factor, to: :lead_type, allow_nil: true

  def update_score_based_on_serving_factor
    # logic to calculate and update score based on serving_factor
    self.score = calculate_new_score
    save
  end

  private

  def calculate_new_score
    # Your logic to calculate the score based on serving_factor
  end
end

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