[rt-users] Validating Custom fields against an external datasource

Kevin Falcone falcone at bestpractical.com
Fri Dec 13 10:50:17 EST 2013

On Fri, Dec 13, 2013 at 10:02:49AM -0400, Kenroy Bennett wrote:
>    I have a auto-complete custom field with its data coming from an web service
>    The reason for the auto-complete is to prevent users from searching through the long list of
>    data.
>    I would like to know if custom validation can be created to validate the entry in the custom
>    field against an external data source such as a web service and display a error message.

You may find it easier to source the data externally first:

But you could also validate on submission, there are callbacks in

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