Software engineering and personal development
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You may need attributes in your views or in your JSON response which may not be part of your models. In these situations, you may use virtual attributes that you may only use in your particular cases, and not bother to add many new attributes in your database table that are not that much relevant for that model.
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One of the best practices is keeping your controllers with as little code as possible, and have all the validations in the models. Rails includes a lot of validations that you can use in your models, and many other helpers that help you focus on your business logic and develop your projects as quickly as possible. A helper method that is among the unpopular ones is the possibility to check the old value of an attribute of a object, before doing any database transaction.
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There can be cases where you wished you named that controller a lot better, as it does not make any sense and is very ambiguous in its current form. If you have ever wondered whether there is a way for you to do quick renamings of multiple related files inside a Rails project, then I have some good news for you. There is already a gem called Rails Refactor, that can be used to do these renamings. Continue reading
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