Fields when entered needs to be validated

Rails
1

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

2

2009/8/20 karthik k [email protected]:

can you please guide me

Have a look at the rails guide on validations,
http://guides.rubyonrails.org/activerecord_validations_callbacks.html

Colin

3

On Thu, Aug 20, 2009 at 4:34 PM, Rails L. <
[email protected]> wrote:

can you please guide me
validates_numericality_of :age, :allow_blank=>true
end

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

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Hi

Thank you

–
Karthik.k
Mobile - +91-9894991640

4

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