Drupal 8 Field Defaults Module
Share with Others
The Drupal 8 Field Defaults module is a handy little module that allows you to bulk update the default values of a Drupal field. This is helpful if you have ever added a field to a content type or entity and wished you could have the default value apply to all the existing content on your Drupal site.
Download and install the Field Defaults module just like any other Drupal 8 module.
You can visit the configuration page by going to Admin > Configuration > System > Field Defaults settings. The only setting is the ability to retain the original entity updated time when default values are updated.
Navigate to a Content Type and go to Manage Fields. Edit one of the fields on the content type. In the screenshot below, I am editing a text field called Example. You will notice under the default value section there is a new fieldset called Update Existing Content. If you needed to change the default value and wanted it to apply to all of your existing content on the site, you would use the checkboxes to update the defaults.
That’s it! There really is not a lot to it, but it’s useful when you are adding new fields to existing sites.