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[IKEDA Soji <address@concealed>]

Hi,

On 2022/11/16 3:53, Silvers, Tim wrote:
> Hi. Has anyone customized Sympa to perform any form field input 
> validations? In our case, we would like to ensure that any created lists 
> include a “-L” (i.e., dash el) in their names. The code is in 
> create_list_request.tt2 and I have been reviewing the template 
> directives [1] in an attempt to find a solution. Perhaps a FILTER would 
> work? Or a PERL block?
>
> Here is the code from create_list_request.tt2:
>
> <input type="text" id="listname" name="listname" size="30" value="[% 
> saved.listname %]" />
>
>                  <!-- CODE CHECK FOR DASH EL IN LIST NAME -->
>
>                  [% IF saved.listname !~ '<chars>-L$' %]
>
>                     [% SET saved.listname = ${saved-listname} _ '-l' %]
>
>                  [% END %]
>
> [1] 
> http://www.template-toolkit.org/docs/manual/Directives.html#section_Conditional_Processing <http://www.template-toolkit.org/docs/manual/Directives.html#section_Conditional_Processing>
>
> Tim

As the template is rendered before the form is shown, it cannot validate
form input.

If you can assume that the users' browsers are HTML5 compliant (a
reasonable assumption these days), then the input element may be given a
"pattern" attribute.

<input type="text" id="listname" name="listname" size="30" value="[% 
saved.listname %]" pattern="[0-9A-Za-z][-+._0-9A-Za-z]*-[Ll]" />

For more details about client-side form validation, see this article
in MDN:

  https://developer.mozilla.org/en-US/docs/Learn/Forms/Form_validation

Regards,
-- Soji

--
株式会社 コンバージョン
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