By phenaproxima on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
10.3.x
Introduced in version: 
10.3.0
Issue links: 
https://www.drupal.org/node/3437325
Description: 

There is a new validation constraint available: CountryCode. This is a very simple constraint that requires the validated value to be one of the known country codes returned by the country_manager service.

To use it in config schema (this example is paraphrased from system.schema.yml, for the system.date config object):

default_country:
  type: string
  label: 'Default country'
  constraints:
    CountryCode: []
Impacts: 
Module developers