Ruby on Rails

On Mon, May 4, 2015 at 3:01 PM, Hemant Bhargava <lists@ruby-forum.com> wrote:
[...]
> I have a Book model and status of the book can be anything from NEW,
> OLD, VERY_OLD. It can be NEW, OLD both or it could be OLD and VERY_OLD
> both. What would you suggest to implement in such a case? I wanted to
> save user choice in database.
[...]

Have book_publised_time field, and according to that, define derived
attributes on wheather the book is old, new, or very old. You don't
have to save user choice, fetch the data, check for condition and
according to that do your calculation.


Mrinmoy Das

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