diff --git a/lib/Drupal/ctools/DatabaseExportableController.php b/lib/Drupal/ctools/DatabaseExportableController.php
index fa26cfc..af6e9d7 100644
--- a/lib/Drupal/ctools/DatabaseExportableController.php
+++ b/lib/Drupal/ctools/DatabaseExportableController.php
@@ -317,6 +317,27 @@ class DatabaseExportableController extends ExportableControllerBase {
    * @todo.
    */
   public function save($exportable) {
+    if (!empty($this->info['save callback']) && function_exists($this->info['save callback'])) {
+      return $this->info['save callback']($exportable);
+    }
+    else {
+      // Objects should have a serial primary key. If not, simply fail to write.
+      if (empty($this->schema['primary key'])) {
+        return FALSE;
+      }
+
+      if ($exportable->isInDatabase()) {
+        // Existing record.
+        $update = $this->schema['primary key'];
+      }
+      else {
+        // New record.
+        $update = array();
+        $exportable->setIsInDatabase(TRUE);
+      }
+
+      return drupal_write_record($this->info['schema'], $exportable, $update);
+    }
   }
 
   /**