Data validation is a pain. Not only is it hard to do it right, but it can also be difficult to implement without making a mess. When trying to validate data before saving it, it’s easy to pollute methods and violate many programming best practices. For all those reasons, a much better way would be to handle validation via a validator service. In programming, a service is a unit that externalizes business logic from entities. Using services is a great way to keep a clean codebase by breaking...
