Prefetch options & segments for listing

[MAILPOET-2645]

lib/API/JSON/ResponseBuilders/NewslettersResponseBuilder.php

@@ -92,6 +92,8 @@ class NewslettersResponseBuilder {
   public function buildForListing(array $newsletters): array {
     $statistics = $this->newslettersStatsRepository->getBatchStatistics($newsletters);
     $latestQueues = $this->getBatchLatestQueuesWithTasks($newsletters);
+    $this->prefetchOptions($newsletters);
+    $this->prefetchSegments($newsletters);
 
     $data = [];
     foreach ($newsletters as $newsletter) {
@@ -229,4 +231,28 @@ class NewslettersResponseBuilder {
     }
     return $latestQueues;
   }
+
+  private function prefetchOptions(array $newsletters) {
+    $this->entityManager->createQueryBuilder()
+      ->select('PARTIAL n.{id}, o, opf')
+      ->from(NewsletterEntity::class, 'n')
+      ->join('n.options', 'o')
+      ->join('o.optionField', 'opf')
+      ->where('n.id IN (:newsletters)')
+      ->setParameter('newsletters', $newsletters)
+      ->getQuery()
+      ->getResult();
+  }
+
+  private function prefetchSegments(array $newsletters) {
+    $this->entityManager->createQueryBuilder()
+      ->select('PARTIAL n.{id}, ns, s')
+      ->from(NewsletterEntity::class, 'n')
+      ->join('n.newsletterSegments', 'ns')
+      ->join('ns.segment', 's')
+      ->where('n.id IN (:newsletters)')
+      ->setParameter('newsletters', $newsletters)
+      ->getQuery()
+      ->getResult();
+  }
 }