Hi all, please look to my example code: the model: class ProductCategory < ActiveRecord::Base validates_uniqueness_of :name validates_presence_of :name end and run this: category = ProductCategory.new puts category.name puts category.name.blank? puts category.name.class puts nil.class puts category.valid? it will return: NULL false String NilClass false true and I'm using sqlserveradapter in database.yml: development: database: xxx adapter: sqlserver host: . username: xxx password: xxx I checked this page http://dev.rubyonrails.org/attachment/ticket/7083/... and rolled back this change, and this problem has solved for me. did anyone got the same problem?
on 2007-02-23 20:51