Because templating systems are meant to remove all application/business logic and just focus on the appearance and presentation.
But this is kind of a Bauhaus thing. Remember: form follows function (Bauhaus was some sort of German art institute... not to mention a pretty cool new wave band:)

If you accept input > 25 characters, then you are providing a value which does not mesh with the database constraints... there need to be front end checks to ensure that bad data is never presented to the backend.

DBSchema::Sample

In reply to Re: Separation of Presentation and Application/Business Logic by princepawn
in thread the trend of the presentation layer driving application logic by princepawn

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