Database Operations with Class Methods
Explore how to utilize class methods in Rails models to streamline database access and reuse query logic. Understand when to place methods directly in Active Record models to keep code clean and why complex business logic belongs outside these methods to maintain sustainable app design.
We'll cover the following...
We'll cover the following...
Database manipulation in Rails
If we look at the class methods that are provided by Rails (excluding the DSL methods previously discussed), they all center around providing ways of accessing the underlying database. This is a good guide for the types of methods we should add. But we would recommend only adding methods to facilitate reuse. Another way to say this is to add class methods to the Active Record only if both of these criteria hold:
- There is a