Rails - Apr 2005 - nil instead of empty string

Is there a simple way to force a text_field form helper to return nil
instead of an empty string if the length of the string is zero?

 

I am trying to do length validation that uses allow_nil, but
unfortunately my database is being populated with empty strings (using
Microsoft SQL)

 

I can write triggers to correct this behavior, but I am curious if it
can be done easily within rails.

 

Thanks!

-kmartin



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