Rails - Nov 2007 - Other validations fail even if there is no validates_presence_of

Hi,

I have a set of validations like:
 validates_format_of   :city,
                       :with => /^[a-zA-Z\s\''\&]+$/,
                       :message => "is not a valid name"

  validates_format_of :zip,
                      :with => /^[\d]{5}+$/,
                      :allow_nil => true,
                      :message => "is not a valid zip code"

But I don''t have a validates_presence_of :city, :zip.

I want to validate the format only if user has entered some value into
the fields. But both the _format_of hooks are trying to validate an
empty value. Any idea how I can stop this behavior?

Thanks.

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Add :allow_nil => true to the city validation. You only have it on the 
zip code validation.

-Bill

Love AJAX wrote:
> Hi,
>
> I have a set of validations like:
>  validates_format_of   :city,
>                        :with => /^[a-zA-Z\s\''\&]+$/,
>                        :message => "is not a valid name"
>
>   validates_format_of :zip,
>                       :with => /^[\d]{5}+$/,
>                       :allow_nil => true,
>                       :message => "is not a valid zip code"
>
> But I don''t have a validates_presence_of :city, :zip.
>
> I want to validate the format only if user has entered some value into
> the fields. But both the _format_of hooks are trying to validate an
> empty value. Any idea how I can stop this behavior?
>
> Thanks.
>
> >
>   
-- 
Sincerely,

William Pratt


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:allow_nil => true didn''t work on these validations. Instead I had
to
do something like :if => Proc.new{|profile| profile != ""}. This
works
fine. So my code now looks like this:

  validates_format_of :zip,
                      :with => /^[\d]{5}+$/,
                      :if => Proc.new {|profile| profile.zip !=
""},
                      :message => "is not a valid zip code"

 validates_format_of   :city,
                       :with => /^[a-zA-Z\s\''\&]+$/,
                       :if => Proc.new {|profile| profile.city !=
""},
                       :message => "is not a valid name"

See the last sentence of
http://api.rubyonrails.com/classes/ActiveRecord/Validations/ClassMethods.html#M000958.

Thanks much.

On 11/20/07, William Pratt <billp-YbheRAKfYF4eIZ0/mPfg9Q@public.gmane.org>
wrote:
>
> Add :allow_nil => true to the city validation. You only have it on the
> zip code validation.
>
> -Bill
>
> Love AJAX wrote:
> > Hi,
> >
> > I have a set of validations like:
> >  validates_format_of   :city,
> >                        :with => /^[a-zA-Z\s\''\&]+$/,
> >                        :message => "is not a valid name"
> >
> >   validates_format_of :zip,
> >                       :with => /^[\d]{5}+$/,
> >                       :allow_nil => true,
> >                       :message => "is not a valid zip
code"
> >
> > But I don''t have a validates_presence_of :city, :zip.
> >
> > I want to validate the format only if user has entered some value into
> > the fields. But both the _format_of hooks are trying to validate an
> > empty value. Any idea how I can stop this behavior?
> >
> > Thanks.
> >
> > >
> >
>
> --
> Sincerely,
>
> William Pratt
>
>
> >
>
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