Rails - Aug 2009 - Fields when entered needs to be validated

hi guys

Thanks for the support you give

I have some four fields which is not mandatory, but when that field is
entered need to be validated before saved

else

it can take null value

can you please guide me

-- 
Karthik.k
Mobile - +91-9894991640

2009/8/20 karthik k
<cse.k.karthik-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> hi guys
>
> Thanks for the support you give
>
> I have some four fields which is not mandatory, but when that field is
> entered need to be validated before saved
>
> else
>
> it can take null value
>
> can you please guide me
Have a look at the rails guide on validations,
http://guides.rubyonrails.org/activerecord_validations_callbacks.html

Colin

Karthik Kantharaj wrote:
> hi guys
> 
> Thanks for the support you give
> 
> I have some four fields which is not mandatory, but when that field is
> entered need to be validated before saved
> else 
> it can take null value
> can you please guide me
> --
> Karthik.k
> Mobile - +91-9894991640
Assume that you have an age field that should not be validated if it is 
blank.  But should be validated when something is entered

#your Model

class Employee < ActiveRecord::Base
  validates_numericality_of :age, :allow_blank=>true
end

This will let blank but when something is there it will be validated for 
numbers.

http://www.classifiedscript.in
Craigslist Clone
-- 
Posted via http://www.ruby-forum.com/.

On Thu, Aug 20, 2009 at 4:34 PM, Rails List <
rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:
>
> Karthik Kantharaj wrote:
> > hi guys
> >
> > Thanks for the support you give
> >
> > I have some four fields which is not mandatory, but when that field is
> > entered need to be validated before saved
> > else
> > it can take null value
> > can you please guide me
> > --
> > Karthik.k
> > Mobile - +91-9894991640
>
> Assume that you have an age field that should not be validated if it is
> blank.  But should be validated when something is entered
>
> #your Model
>
> class Employee < ActiveRecord::Base
>  validates_numericality_of :age, :allow_blank=>true
> end
>
> This will let blank but when something is there it will be validated for
> numbers.
>
> http://www.classifiedscript.in
> Craigslist Clone

Hi

Thank you


-- 
Karthik.k
Mobile - +91-9894991640

> --
> Posted via http://www.ruby-forum.com/.
>
> >
>
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