[Dancer-users] Input-validation and Error-Handling in a fun 'dancer' way

[al]

On 14 September 2011 19:12, Assaf Gordon <gordon at cshl.edu> wrote:
>
> Hello Dancers,
>
> I have another dancer-newbie question:
>
> Is there a recommended way to verify input (or general variables) and report errors to the user ?
>
> Common scenario:
> I have a form with 3 inputs, and they need to by in a certain format (verifiable by a simple regex).
> If the inputs do not conform, I want to:
>
> 1. Log the error for later inspection
> 2. Inform the user (e.g. using Plugin::Dancer::FlashMessage)
> (The error message reported to the user is not necessarily the same one written to the log, if I wish to include more technical details in the log, or be more descriptive and verbose to the user).
> 3. Stop processing the request.
>
> And I wish to do it in the most 'fun' dancer kind of way.
>
> Looking at a naive implementation (below), there's alot of redundant code for validating and reporting the error back to the user (and more validation code than actual processing code).
>
> Any suggestions ?
>
> Thanks!
>  -gordon

I have been using Data::FormValidator, but recently Validate::Tiny has
caught my attention and it seems to match Dancer's minimalist
philosophy. Someone recently posted a plugin to the Dancer mailing
list: https://github.com/kalgan/Dancer-Plugin-ValidateTiny