Entityreference fields are deleted when uninstalling OG [#2916228]

I would like to know if this behaviour is by default when uninstalling OG, or that it is caused by another module?

When I uninstall OG, the entityreference fields that had OG behaviour assigned, are automatically deleted.

This is not desirable since I installed OG on an existing site with hundreds of entities actively using that entityreference field. I enabled OG behaviour on that field after installation of OG, and now after the uninstall of OG these fields are deleted, no trace left.

Comments

Comment #1

14 October 2017 at 12:50

Yuri created an issue. See original summary.

Comment #2

Yuri CreditAttribution: Yuri commented 14 October 2017 at 12:51

Issue summary:

View changes

Comment #3

Xilis CreditAttribution: Xilis at BigScreen Group commented 12 April 2018 at 13:12

Taken from og_uninstall():

  // Delete OG-core fields.
  $og_fields = array(
    'group_group',
    'og_description',
    'og_membership_request',
  );

  foreach (field_info_instances() as $bundles) {
    foreach ($bundles as $instances) {
      foreach ($instances as $instance) {
        if (in_array($instance['field_name'], $og_fields)) {
          field_delete_instance($instance);
        }
        else {
          $field = field_info_field($instance['field_name']);
          if ($field['type'] == 'entityreference' && ($field['settings']['handler'] == 'og' || strpos($field['settings']['handler'], 'og_') === 0)) {
            // Last instance will take care also of deleting the field itself.
            field_delete_instance($instance);
          }
        }
      }
    }
  }

So yes, og fields ('group_group', 'og_description', 'og_membership_request') and entityreference fields where og is the handler get deleted.