Nam Vo Website
I developed this website to
share my knowledge and satisfy my coding passion
LATEST BLOG
Optimizing Bulk Create Operations in Rails
Recently, my team ran into performance issues while handling bulk CUD (Create, Update, Delete) operations in a Rails application.Active Record provides validations and callbacks, which are excellent tools for maintaining data consistency. Rails contr...
2026-01-03 19:48:24 +0700
· 4 mins read
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
Make Our Utils Functions Immutable
I chose JavaScript for this blog because it has both mutable and immutable objects and methods, while language like Haskell enforces immutability everywhere1. Mutable vs Immutable Objects and MethodsWhen we say an object is immutable, we mean i...
2025-11-22 18:12:27 +0700
· 3 mins read
Software Engineer
Software Engineer
Top blogs
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Solving the "must appear in the GROUP BY clause" Error in Rails and PostgreSQL
This blog will give an example of how to resolve this common error when using group_by in Active Record1. Example problemFirst, take a look at this SQL problem. Imagine you're working on a booking application where users can have multiple sessions. Y...
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
2024-07-10 23:00:10 +0700
· 3 mins read
How to Manage and Renew SSL Certificates Using Docker Compose
Securing your website with SSL certificates is essential to protect data transmitted between the server and client. Managing and renewing SSL certificates can be a cumbersome task, but Docker simplifies this process. In this blog post, we will demons...
Docker
Docker
Software Engineer
Software Engineer
2024-08-15 21:06:08 +0700
· 3 mins read
How to customize YJIT in the Rails app
In this post, we'll dive into what YJIT is, how to enable it in your Rails app, and how to monitor and configure it for optimal performance.What is YJIT?YJIT is a lightweight Just-In-Time (JIT) compiler introduced in Ruby to speed up method execution...
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
2025-02-01 17:28:04 +0700
· 3 mins read
Common Mistakes When Using Sidekiq
Sidekiq is a popular background job processing library for Ruby that allows you to offload time-consuming tasks from your main application thread. While Sidekiq can significantly improve the performance and responsiveness of your application, it's es...
Ruby on Rails
Ruby on Rails
2024-08-27 21:25:30 +0700
· 3 mins read
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