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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