Form Validation

Rails
1

Hi,

I’ve got an interesting one here :slight_smile:

I have a form with three fields :

serial_number
initial
surname

now, if serial_number is entered, it must be between 1 and 64000. If
it’s filled in, the other two fields must be blank. If serial_number is
left blank then the other two boxes must be filled.

Any suggestions?

2

do a custom validation in your model

def validate
if serial_number.nil?
errors.add(‘field1’, “Sorry field1 cant be blank when using a
serial
number”) if field1.nil?
errors.add(‘field2’, “Sorry field2 cant be blank when using a
serial
number”) if field2.nil?
else
errors.add(‘serial_number’,“Sorry serial number must be between 1
and
64000”) if serial_number < 1 || serial_number > 64000
errors.add(‘field1’, “Sorry field1 must be blank when using a
serial
number”) if ! field1.nil?
errors.add(‘field2’, “Sorry field2 must be blank when using a
serial
number”) if ! field2.nil?
end
end

 quick and dirty but should come close :-)   Sometimes you have to

use
field.nan? instead of nil? if the value is a number, at least in my
experiences. Not sure why types of data is in your fields.

adam