Strategies for optimizing ActiveRecord callbacks in Rails 7 applications
I'm getting frustrated with I'm learning this framework and Recently started working on a Rails 7 project that heavily utilizes ActiveRecord callbacks for managing complex object lifecycle events. While these callbacks are convenient, I've noticed that they can introduce performance issues, especially when dealing with bulk operations. For instance, in a scenario where I need to update multiple records based on a specific condition, using callbacks seems to slow down the process significantly. Here's a simplified version of what I currently have in my model: ```ruby class Order < ApplicationRecord after_save :update_inventory def update_inventory # Logic to update inventory end end ``` When processing thousands of orders at once, each callback executes for every record, leading to excessive database calls. I attempted to switch to using `ActiveRecord::Base#update_all` for bulk updates, which bypasses callbacks altogether, but this has its own drawbacks, as I need those updates to trigger additional logic. Additionally, I experimented with eager loading to minimize N+1 query issues, but callbacks still seem to lead to unexpected slowdowns. Is there a best practice for optimizing the usage of callbacks in such situations? Would leveraging event-driven architecture or background jobs be a more effective solution, perhaps using Sidekiq for deferred processing? Any insights or examples of how to structure my callbacks or workflows to improve performance would be greatly appreciated! I'm on Ubuntu 22.04 using the latest version of Ruby. How would you solve this?