Hey all, I look at the rails documentation validation helpers:
http://api.rubyonrails.org/classes/ActiveModel/Validations/HelperMethods.html It has this example: class Person < ActiveRecord::Base validates_inclusion_of :states, :in => lambda{ |person| STATES[person.country] } end So basically when you update a record, that object instance is passed into the lambda and validation occurs. I try to emulate same thing: class Subject < ActiveRecord::Base validates_inclusion_of :screening, :in => lambda { |subject| (subject.screened_on + 7.days)..(subject.screened_on + 14.days) } end So basically I just want to make sure the date they entered is between dates the object was screend. However, I get this error: .rvm/gems/ruby-1.8.7-p357/gems/activerecord-2.3.10/lib/active_record/ validations.rb:908:in `validates_inclusion_of': An object with the method include? is required must be supplied as the :in option of the configuration hash (ArgumentError) Ok so the source code shows this line: enum = configuration[:in] || configuration[:within] 607: 608: raise(ArgumentError, "An object with the method include? is required must be supplied as the :in option of the configuration hash") unless enum.respond_to?("include?") Granted, a model instance does not have the include? method. So then why does the example in the rails documentation work and what can I do to emulate that? thanks for response -- 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@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
