comparison core/modules/media/src/MediaSourceBase.php @ 4:a9cd425dd02b

Update, including to Drupal core 8.6.10

    * @return string
    *   The source field name. If one is already stored in configuration, it is
    *   returned. Otherwise, a new, unused one is generated.
    */
   protected function getSourceFieldName() {
-    $base_id = 'field_media_' . $this->getPluginId();
+    // Some media sources are using a deriver, so their plugin IDs may contain
+    // a separator (usually ':') which is not allowed in field names.
+    $base_id = 'field_media_' . str_replace(static::DERIVATIVE_SEPARATOR, '_', $this->getPluginId());
     $tries = 0;
     $storage = $this->entityTypeManager->getStorage('field_storage_config');
 
     // Iterate at least once, until no field with the generated ID is found.
     do {