Agile Web Development

Validates whether the value of the specified attribute is in the correct form by matching it against the VAT picture for the appropriate country.

   class Person < ActiveRecord::Base
     validates_as_eu_vat_number :identifier, :with => :country_code
     validates_as_eu_vat_number :full_vat_number
   end

Configuration options:

 * <tt>message</tt> - A custom error message (default is: "is invalid")
 * <tt>with</tt> - Either a symbol referencing a field with the country code, or the code itself as a String.
 * <tt>on</tt> Specifies when this validation is active (default is :save, other options :create, :update)
 * <tt>allow_nil</tt> - Skip validation if attribute is nil.
 * <tt>allow_blank</tt> - Skip validation if attribute is blank.
 * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
   occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
   method, proc or string should return or evaluate to a true or false value.
 * <tt>unless</tt> - Specifies a method, proc or string to call to determine if the validation should
   not occur (e.g. :unless => :skip_validation, or :unless => Proc.new { |user| user.signup_step <= 2 }).  The
   method, proc or string should return or evaluate to a true or false value.

Owner: Neil Wilson

Repository: http://accounts4free.rubyforge.org/svn/plugins/validates_as_eu_vat_number

License: Rails' (MIT)

Category: Model