arel

Selecting Fixed Virtual Attributes with Arel

Arel: A Quick Intro Arel is a SQL AST (Abstract Syntax Tree-like) manager for Ruby. It allows us to write complex SQL queries in a semantic, reusable fashion. Arel is "framework framework"; it's designed to optimize object and collection modeling over database compatibility. For example, Active Record is built on…

Composable Query Builders in Rails with Arel

We'll use Arel to build a flexible query builder class that will allow us to dynamically search our database given any search form input. This post focuses less on building intricate Arel queries and more on enacting a design pattern that allows us to leverage Arel in a composeable and…