Atomic Query Construction (AQC) Design Pattern: A Practical CRUD Implementation Guide

When I first introduced the Atomic Query Construction (AQC) design pattern, the focus was on breaking down monolithic repositories into small, single-purpose query classes. These classes are driven entirely by parameters, not hard-coded logic. That philosophy allows a single class to handle multiple query intentions without method explosion, while keeping code readable and maintainable. In this article, I want to show you how to implement AQC for full CRUD operations, following the same parameter-first approach. This is the practical way to apply the pattern in a Laravel application but you are free to adopt this pattern in any language of your preference. The Philosophy Recap AQC is based on one principle One class = one intention. Parameters define the variations. Folder Structure A simple organization for CRUD operations: app/ └─ AQC/ ├─ Product/ │ ├─ GetProducts.php │ ├─ GetProduct.php │ ├─ CreateProduct.php │ ├─ UpdateProduct.php │ └─ DeleteProduct.php │ └─ User/ ├─ GetUsers.php ├