Active Record 是 Ruby on Rails 框架中的一个组件，它提供了数据库表与 Ruby 对象之间的映射关系。Active Record 回调函数是在对象的生命周期中，当特定事件发生时自动执行的方法。

以下是 Active Record 回调函数的执行顺序：

1. 创建对象：

• before_validation
• after_validation
• before_save
• around_save
• before_create
• around_create
• after_create
• after_save
• after_commit/after_rollback

2. 更新对象：

• before_validation
• after_validation
• before_save
• around_save
• before_update
• around_update
• after_update
• after_save
• after_commit/after_rollback

3. 删除对象：

• before_destroy
• around_destroy
• after_destroy
• after_commit/after_rollback

下面是一个包含代码示例的解决方法：

class User < ActiveRecord::Base
  before_validation :set_default_name

  after_validation :normalize_name

  before_save :encrypt_password

  around_save :log_save

  before_create :set_created_at

  around_create :log_create

  after_create :send_welcome_email

  after_save :update_cached_data

  after_commit :notify_admin, on: :create

  before_update :set_updated_at

  around_update :log_update

  after_update :send_notification_email

  before_destroy :cancel_subscription

  around_destroy :log_destroy

  after_destroy :cleanup_data

  after_commit :notify_admin, on: :destroy

  private

  def set_default_name
    self.name ||= "Guest"
  end

  def normalize_name
    self.name = name.downcase
  end

  def encrypt_password
    self.password = password.encrypt
  end

  def log_save
    puts "Saving user..."
    yield
    puts "User saved."
  end

  def set_created_at
    self.created_at = Time.now
  end

  def log_create
    puts "Creating user..."
    yield
    puts "User created."
  end

  def send_welcome_email
    WelcomeMailer.send_email(self).deliver_now
  end

  def update_cached_data
    Cache.update(self)
  end

  def notify_admin
    AdminMailer.notify(self).deliver_now
  end

  def set_updated_at
    self.updated_at = Time.now
  end

  def log_update
    puts "Updating user..."
    yield
    puts "User updated."
  end

  def send_notification_email
    NotificationMailer.send_email(self).deliver_now
  end

  def cancel_subscription
    Subscription.cancel(self)
  end

  def log_destroy
    puts "Destroying user..."
    yield
    puts "User destroyed."
  end

  def cleanup_data
    DataCleanup.cleanup(self)
  end
end

以上是一个简单的 User 模型，展示了 Active Record 回调函数的执行顺序以及每个回调函数的示例代码。请根据自己的实际需求进行相应的修改和调整。