Option to automatically create a meta-entity

1. diff --git a/src/MetaEntityRepositoryInterface.php b/src/MetaEntityRepositoryInterface.php
   index f3ec3d9..ca8a531 100644
   --- a/src/MetaEntityRepositoryInterface.php
   +++ b/src/MetaEntityRepositoryInterface.php
   @@ -63,4 +63,15 @@ interface MetaEntityRepositoryInterface {
   +  /**
   +   * Returns a list of meta entity types that are configured with auto-creation.
   +   *
   +   * @return string[]
   +   *   A list o meta entity type IDs.
   +   */
   

   Small typo "A list _of_ meta entity type IDs".

2. --- a/src/MetaEntityRepository.php
   +++ b/src/MetaEntityRepository.php
   @@ -175,4 +175,41 @@ class MetaEntityRepository implements MetaEntityRepositoryInterface {
   +  public function getTypesWithAutoCreation(ContentEntityInterface $entity): array {
   +    $cid = 'auto_create';
   +    $bundle = $entity->bundle() ?: $entity->getEntityTypeId();
   

   What motivated you to distrust the value returned by $entity->bundle() and provide a fallback to the entity type ID? Did you see a case where a certain entity type returns NULL for the bundle?

   The method as described in EntityInterface::bundle() already specifies that the entity type ID is returned as a fallback, and returning NULL is not allowed according to the interface:

     /**
      * Gets the bundle of the entity.
      *
      * @return string
      *   The bundle of the entity. Defaults to the entity type ID if the entity
      *   type does not make use of different bundles.
      */
     public function bundle();
   

   Of course in Drupal core this is not enforced yet (it lacks strict return types), but it seems to me if you found a case where this returns NULL then this is probably a bug in the entity type, and not strictly needed for us to provide a fallback.

3. diff --git a/src/Form/MetaEntityTypeForm.php b/src/Form/MetaEntityTypeForm.php
   index 614b0b9..6f37629 100644
   --- a/src/Form/MetaEntityTypeForm.php
   +++ b/src/Form/MetaEntityTypeForm.php
   @@ -158,11 +158,12 @@ class MetaEntityTypeForm extends BundleEntityFormBase {
   +        $form['mapping'][$entity_type_id]['bundles'][$bundle_id]['settings'] = [
   ...
   +          '#title' => $this->t('Settings for  @bundle @entity_type', [
   

   Small typo: double space after "Settings for ".

Updated the patch in #5 addressing #6.1 and #6.3. Retaining status as "Needs work" to address #6.2... Thanks!

Thanks for the fast fixes @ankithashetty and @claudiu.cristea!

It's looking good now, thanks a lot!