Drupal 7 EntityReference Devel Generate speedup

entityreference-devel-generate-speedup.patch

diff --git a/entityreference.devel_generate.inc b/entityreference.devel_generate.inc
index fab46dd..d6d7d78 100644
--- a/entityreference.devel_generate.inc
+++ b/entityreference.devel_generate.inc
@@ -15,18 +15,20 @@ function entityreference_devel_generate($object, $field, $instance, $bundle) {
 }
 
 function _entityreference_devel_generate($object, $field, $instance, $bundle) {
-  $object_field = array();
-  // Get all the entity that are referencable here.
-  $referencable_entity = entityreference_get_selection_handler($field, $instance)->getReferencableEntities();
-  if (is_array($referencable_entity) && !empty($referencable_entity)) {
-    // $referencable_entity is keyed by bundle type.
-    $random_bundle = array_rand($referencable_entity);
-    if (!empty($random_bundle)) {
-      $target_id = array_rand($referencable_entity[$random_bundle]);
-      if (!empty($referencable_entity[$random_bundle][$target_id])) {
-        $object_field['target_id'] = $target_id;
-      }
+  $object_field = [];
+  $map = &drupal_static(__FUNCTION__, []);
+  if (empty($map)) {
+    $result = db_query("SELECT type, nid from {node}");
+    foreach ($result as $item) {
+      $map[$item->type][] = $item->nid;
     }
   }
+  $target_bundle = array_rand($field['settings']['handler_settings']['target_bundles']);
+  if (!isset($map[$target_bundle])) {
+    return $object_field;
+  }
+
+  $object_field['target_id'] = array_rand($map[$target_bundle]);
+
   return $object_field;
 }