Re: [Rails] date validation in rails 3

This would be my solution:

lib/formatted_date_time.rb:

class ActiveRecord::Base

  

  def self.formatted_date_accessor(*names)

    names.each do |name|

      define_method("#{name}=") do |value|

        super(value)

        if value.present? && self[name].nil?

          class_eval do

            define_method name.to_sym do

              value

            end

          end

          self.class.validate do

            errors.add(name.to_sym, "can't be formatted")

          end

        end

      end

    end

  end

  

end

class User < ActiveRecord::Base

  formatted_date_accessor :birth_date

end

If you passing invalid date, it raises an validation error, but returns the invalid date to a form _at_request_.

On 01.02.2012, at 12:22, sandip ransing wrote:

consider scenario,

User model with name, birth_date fields (here birth_date is not mandatory field)

inside view form birth_date is assigned as '31/31/1985' which is invalid

ideally user object should be invalid and while save raise an error on birth_date field but that's not happening and user object gets saved with birth_date as blank which is completely misleading.

After debugging found that while assigning attributes birth_date value it gets assigned as blank and as birth_date is optional object gets saved.

class User < ActiveRecord::Base
    def initialize(args={})
    logger.info args[:birth_date] #invalid value comes upto here but vanishes afterwords
      super
  end
end

Any clue how to get validation working properly for not mandatory date fields ??

--
sαη∂ιρ Rαηѕιηg

---
www.funonrails.com

twitter, github @sandipransing

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