Unique field


#1

Anyone point me in the direction of a tutorial to explain how I can
add a checker to a form field to see whether it is already used within
the database, i.e. check whether the username entered is unique


#2

validates_uniqueness_of

http://api.rubyonrails.com/classes/ActiveRecord/Validations/ClassMethods.html#M001896

On Sun, Jan 18, 2009 at 6:06 PM, Dave removed_email_address@domain.invalid wrote:

Anyone point me in the direction of a tutorial to explain how I can
add a checker to a form field to see whether it is already used within
the database, i.e. check whether the username entered is unique

Natalie Wood - “The only time a woman really succeeds in changing a man
is
when he is a baby.”