Is it possible to do validation on two fields that are co-dependent inside a single validates_numericality_of statement? Say for example I have two fields: sales_headcount and sales_compensation, in which both fields must be > 0 in order for either to be valid (e.g., you can''t be compensating sales people you don''t have...) What I tried is: validates_numericality_of :sales_headcount, :greater_than => 0, :if => :sales_compensation, :greater_than => 0, :message => "Sales headcount can''t be zero if compensation isn''t zero " validates_numericality_of : sales_compensation, :greater_than => 0, :if => : sales_headcount, :greater_than => 0, :message => "Sales compensation can''t be zero if it''s headcount isn''t zero " which causes a nil error to be thrown far away from the controller in a view page -- The API docs are not very rich with examples of how to use the :if option or even if the :if open can be used to test another field... any pointers n the right formulation for this construct would be appreciated.. _DHMS --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---