Ruby on Rails
Wednesday, March 29, 2017
Use the `unless` key instead of `if` on the validation.
This will perform the validation unless the column is null, i.e., will perform validation if the column is not null.
-Jason
On Mar 29, 2017 8:35 AM, "fugee ohu" <fugee279@gmail.com> wrote:
Trying to validate presence where another field is not null--I found this example, the opposite
class
Person < ApplicationRecord
validates
:surname
, presence:
true
,
if
:
"name.nil?"
end
How do I change the if: condition to name not nil?
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