I am trying to write a Drupal View (with VBO) to show CiviCRM Contacts with the Event Participant records which they are related to. But there is no suitable Relationship in the standard list. I have enabled both Contact and Participant (and Event) entities in Civicrm_Entity, and would presume that this is where the Relationship would be generated as well.
I can use the hook_views_data_alter() to create the Relationship, so there is no fundamental reason why it should not work.
Is there a reason why Civicrm_Entity does not provide this, or is it a bug?