lib/gastropod/active_record/validations.rb
module Gastropod
module ActiveRecord
module Validations
def self.included(base)
base.validates :slug, :uniqueness => true
base.validates :slug, :format => { :with => /\A[a-z0-9-]+\z/, :allow_blank => true }
base.validates :slug, :presence => true
base.before_validation :assign_generated_slug, :if => :generate_slug?
end
end
end
end