比方一个产品的编号,从0001开始,当添加新产品的时候,该编号字段自动填充“0002”
请教数字ID需要前缀0,自动增加字段该如何实现?

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include('/opt/www/fdv2/drupal.stage/web/sites/default/settings.local.php') (Line: 4) require('/opt/www/fdv2/drupal.stage/web/sites/drupal001.net/settings.php') (Line: 145) Drupal\Core\Site\Settings::initialize('/opt/www/fdv2/drupal.stage/web', 'sites/drupal001.net', Object) (Line: 1099) Drupal\Core\DrupalKernel->initializeSettings(Object) (Line: 701) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
比方一个产品的编号,从0001开始,当添加新产品的时候,该编号字段自动填充“0002”