public function PanelizerEntityDefault::hook_field_attach_delete_revision in Panelizer 7.2

Same name and namespace in other branches

1. 7.3 plugins/entity/PanelizerEntityDefault.class.php \PanelizerEntityDefault::hook_field_attach_delete_revision()

Overrides PanelizerEntityInterface::hook_field_attach_delete_revision

File

plugins/entity/PanelizerEntityDefault.class.php, line 857

Base class for the Panelizer Entity plugin.

Class

PanelizerEntityDefault

Base class for the Panelizer Entity plugin.

Code

public function hook_field_attach_delete_revision($entity) {
  list($entity_id, $revision_id, $bundle) = entity_extract_ids($this->entity_type, $entity);

  // Locate and delete all displays associated with the entity.
  $revisions = db_query("SELECT revision_id, did FROM {panelizer_entity} WHERE entity_type = '{$this->entity_type}' AND entity_id = :id", array(
    ':id' => $entity_id,
  ))
    ->fetchAllAssoc('revision_id');

  // It is possible to have the same did on multiple revisions, if none of
  // those revisions modified the display. Be careful NOT to delete a display
  // that might be in use by another revision.
  $seen = array();
  foreach ($revisions as $info) {
    if ($info->revision_id != $revision_id) {
      $seen[$info->did] = TRUE;
    }
  }
  if (!empty($revisions[$revision_id]->did) && empty($seen[$revisions[$revision_id]->did])) {
    panels_delete_display($revisions[$revision_id]->did);
  }
  db_delete('panelizer_entity')
    ->condition('entity_type', $this->entity_type)
    ->condition('entity_id', $entity_id)
    ->condition('revision_id', $revision_id)
    ->execute();
}