Re: Customize validation output

ivanpoval
Fri, 31 Dec 2010 09:13:25 -0000

Hi,
Here is a couple of things that I found myself doing for customizing
the error messages:
  1 alter the result of the error_messages_for helper (for example to
use gsub to make some small updates);
  2 redefine the "ActionView::Base.field_error_proc" to your own
procedure;
  3 add some additional YAML code to your locales file to specify the
different error message.
--
Hope it was helpful, Ivan Povalyukhin

On Dec 30, 1:56 pm, djangst
<djan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Does anybody know a good way to completely customize validation
> output? I''ve tried a number of options but can only get partway
there.
>
> For example I''d like to style not only the affected form input but
> also its label, and provide a message (common to many apps). This has
> been problematic, as the input is referenced internally by
''html_tag''
> and at that point its associated label is out of scope:
>
> http://edgeguides.rubyonrails.org/active_record_validations_callbacks...
>
> I''ve added the message using this method but can''t get at
the label.
>
> I''ve also created an auto-labeling form builder (http://
> edgeguides.rubyonrails.org/form_helpers.html#customizing-form-
> builders) but the error handling still only grabs the input itself
> after the form has been built (i.e., it doesn''t view my custom
labeled
> input as a sort of composite control).
>
> I can accomplish this in the view conditionally by checking
> @instance.errors on a per-field basis, but this seems clunky. And if I
> do that, doesn''t all the validation stuff still fire internally,
> burning cycles on something I don''t use?
>
> There must be a good way to automate this.