multiple_callbacks_order

📋 Chaining Multiple Callbacks

Rails invokes callbacks in the order you declare them. You can define several callbacks of the same kind to split logic into focused methods.

class Comment < ApplicationRecord
  before_save :normalize_body
  before_save :append_signature

  private

  def normalize_body
    self.body = body.strip
  end

  def append_signature
    self.body += "\n-- User Signature"
  end
end

normalize_body runs first, then append_signature, resulting in clean, signed comments.