Validations Don’t Provide Data Integrity
Explore the limitations of Rails validations in ensuring data integrity within your applications. Understand why databases are essential for enforcing data correctness, and learn how validations serve to enhance user experience rather than guarantee data safety. This lesson covers common pitfalls such as validation bypass and race conditions, helping you build more reliable Rails models.
Overview
Now that we’ve had an intro to models, a full discussion of business logic, and a journey through database design, we want to cap off the models discussion by talking about validations, callbacks, scopes, and testing. Then, we can see an end-to-end example of how this all fits together, which will paint a complete picture of the sustainable approach to business logic.
We’ve made the point several times to keep business logic out of Active Records, but we’ve also heavily implied that we should be using validations, which are a form of business logic. We also talked briefly about managing queries, along with a ...