如何在Rails中为多个模型提供相同的方法？

module SharedMethods
  def common_method
    # 共享方法的实现
  end
end

class Model1 < ApplicationRecord
  include SharedMethods
end

class Model2 < ApplicationRecord
  include SharedMethods
end

class BaseModel < ApplicationRecord
  def common_method
    # 共享方法的实现
  end
end

class Model1 < BaseModel
  # Model1的特定代码
end

class Model2 < BaseModel
  # Model2的特定代码
end

class SharedMethods
  def common_method
    # 共享方法的实现
  end
end

class Model1 < ApplicationRecord
  def shared_methods
    @shared_methods ||= SharedMethods.new
  end

  delegate :common_method, to: :shared_methods
end

class Model2 < ApplicationRecord
  def shared_methods
    @shared_methods ||= SharedMethods.new
  end

  delegate :common_method, to: :shared_methods
end