Drupal 8 Module Development - Second Edition

Configuration export

Configuration entity types have a few extra options on their plugin definitions that relate to the exportability of the entities. By default, a number of configuration entity fields are persisted and exported. However, the config_export property needs to be used to declare which other fields should be included in the export. For example, the NodeType configuration entity type defines the following:

*   config_export = {*     "name",*     "type",*     "description",*     "help",*     "new_revision",*     "preview_mode",*     "display_submitted",*   }

Keep in mind that, without this definition, the configuration schema is used as a fallback to determine which fields to persist. If the configuration entity type doesn't have a schema (which it should though), ...