Forum: Ruby on Rails validates_presence_of fails with false boolean

Announcement (2017-05-07): www.ruby-forum.com is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see rubyonrails.org/community and ruby-lang.org/en/community for other Rails- und Ruby-related community platforms.
8e7e5b934fcbcdfb475072685755457f?d=identicon&s=25 Taylor Strait (taylorstrait)
on 2009-01-12 23:53
This almost feels like a bug to me, since false is not nil. (i don't
think!)  Using v_p_o on a boolean field fails validation if the field is
passed with 'false'.  It passes validation in the case of true.  How can
I validate _presence_of a boolean if it is submitted false?
B14575f0ca69f10938fdd67e7156e0e1?d=identicon&s=25 Craig Demyanovich (Guest)
on 2009-01-13 00:18
(Received via mailing list)
You should use validates_inclusion_of. See:

http://www.railsbrain.com/api/rails-2.2.2/doc/inde...

Regards,
Craig

On Mon, Jan 12, 2009 at 5:53 PM, Taylor Strait <
8e7e5b934fcbcdfb475072685755457f?d=identicon&s=25 Taylor Strait (taylorstrait)
on 2009-01-13 00:24
Craig Demyanovich wrote:
> You should use validates_inclusion_of. See:
>
> 
http://www.railsbrain.com/api/rails-2.2.2/doc/inde...
>
> Regards,
> Craig
>
> On Mon, Jan 12, 2009 at 5:53 PM, Taylor Strait <

Doh.  I searched google and ruby-forum, but who would have thought to
look in the API docs:

"If you want to validate the presence of a boolean field (where the real
values are true and false), you will want to use validates_inclusion_of
:field_name, :in => [true, false] This is due to the way Object#blank?
handles boolean values. false.blank? # => true"

Thanks.
This topic is locked and can not be replied to.