Add closeCursor to datas sources, recommendation job, a=chris

diff --git a/src/library/media_jobs/RecommendationJob.php b/src/library/media_jobs/RecommendationJob.php
index c3a49e47e..fc8ad40f4 100644
--- a/src/library/media_jobs/RecommendationJob.php
+++ b/src/library/media_jobs/RecommendationJob.php
@@ -1286,6 +1286,7 @@ class RecommendationJob extends MediaJob
                 "WHERE ITEM_TYPE = ? AND ID = ? " . $db->limitOffset(1);
             $result = $db->execute($sql, [$item_type, $term_id]);
             $row = $db->fetchArray($result);
+            $db->closeCursor($result);
             if (!$row || !is_string($row['VECTOR'])) {
                 $term_embedding = pack("E*", ...array_fill(1,
                     C\EMBEDDING_VECTOR_SIZE, 0.0));
@@ -1295,7 +1296,7 @@ class RecommendationJob extends MediaJob
         }
         if ($update) {
             $this->updateTermEmbeddingCache($term_id, $term_embedding,
-                $item_type);
+                $item_type, "getTermEmbedding");
         }
         return $term_embedding;
     }
diff --git a/src/models/datasources/DatasourceManager.php b/src/models/datasources/DatasourceManager.php
index 16404617c..4bc128dab 100755
--- a/src/models/datasources/DatasourceManager.php
+++ b/src/models/datasources/DatasourceManager.php
@@ -120,6 +120,10 @@ abstract class DatasourceManager
      *      associative array in the form column_name => value
      */
     abstract public function fetchArray($result);
+    /**
+     *
+     */
+    abstract public function closeCursor($result);
     /**
      * Used to escape strings before insertion in the
      * database to avoid SQL injection
diff --git a/src/models/datasources/PdoManager.php b/src/models/datasources/PdoManager.php
index 59d250e3a..0a96857ec 100644
--- a/src/models/datasources/PdoManager.php
+++ b/src/models/datasources/PdoManager.php
@@ -272,6 +272,10 @@ class PdoManager extends DatasourceManager
         }
         return $this->pdo->lastInsertId();
     }
+    public function closeCursor($result)
+    {
+        $result->closeCursor();
+    }
     /**
      * {@inheritDoc}
      *