🔗 TIL Ecto Constraints and Validations

Developers want to create the best applications they can for their users. In the process, they want to make sure to give good feedback to their users when data doesn’t get saved into the database. In Elixir, there is a great tool on top of the database that helps – Ecto! It can put validations and constraints onto specific fields to ensure data integrity.

However, did you know they are differences between validations and constraints? I didn’t. In the process of building a side project, I ran into the problem a few times! Let’s discuss the purpose of each approach and see the differences between them. We’ll dive into why we need each towards the end.