Doh! I can't believe that I missed that.
You can also use if self.images.size.zero?
Just a little more readable.
James Deville
On Mar 18, 2008, at 4:38 PM, Rafael Mueller wrote:
Hi Nikos,
On Tue, Mar 18, 2008 at 8:26 PM, Nikos Dimitrakopoulos <[EMAIL PROTECTED]
> wrote:
the model:
class Item < ActiveRecord::Base
has_many :images, :dependent => :destroy
protected
def validate
errors.add(:images, "cannot be empty") if self.images.count
end
end
self.images.count is always true, the Fixnum 0 (returned when theres
no images) is true
try on irb: foo = "bar" if [].size
I guess the correct way is errors.add(:images, "cannot be empty") if
self.images.size < 1
Regards,
--
Rafael Mueller
http://queroseragil.wordpress.com
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