validates :z, :numericality => {:allow_blank => true, :greater_than => 0}
validates :author_id, :presence => true, :numericality => true, :existence => true
- def supply_default au
+ def supply_default
+ self.border = 2
+ end
+
+ def overwrite au
return false unless au
- self.border = 0 if self.border.blank?
self.author_id = au.id
end