function editor_entity_update

Implements hook_entity_update().

File

core/modules/editor/editor.module, line 380

Code

function editor_entity_update(EntityInterface $entity) {
    // Only act on content entities.
    if (!$entity instanceof FieldableEntityInterface) {
        return;
    }
    // On new revisions, all files are considered to be a new usage and no
    // deletion of previous file usages are necessary.
    if (!empty($entity->original) && $entity->getRevisionId() != $entity->original
        ->getRevisionId()) {
        $referenced_files_by_field = _editor_get_file_uuids_by_field($entity);
        foreach ($referenced_files_by_field as $field => $uuids) {
            _editor_record_file_usage($uuids, $entity);
        }
    }
    else {
        $original_uuids_by_field = _editor_get_file_uuids_by_field($entity->original);
        $uuids_by_field = _editor_get_file_uuids_by_field($entity);
        // Detect file usages that should be incremented.
        foreach ($uuids_by_field as $field => $uuids) {
            $added_files = array_diff($uuids_by_field[$field], $original_uuids_by_field[$field]);
            _editor_record_file_usage($added_files, $entity);
        }
        // Detect file usages that should be decremented.
        foreach ($original_uuids_by_field as $field => $uuids) {
            $removed_files = array_diff($original_uuids_by_field[$field], $uuids_by_field[$field]);
            _editor_delete_file_usage($removed_files, $entity, 1);
        }
    }
}