Implement NewsletterTempates::get() API using Doctrine

[MAILPOET-2647]

lib/API/JSON/ResponseBuilders/NewsletterTemplatesResponseBuilder.php

@@ -5,6 +5,23 @@ namespace MailPoet\API\JSON\ResponseBuilders;
 use MailPoet\Entities\NewsletterTemplateEntity;
 
 class NewsletterTemplatesResponseBuilder {
+  const DATE_FORMAT = 'Y-m-d H:i:s';
+
+  public function build(NewsletterTemplateEntity $template): array {
+    return [
+      'id' => $template->getId(),
+      'categories' => $template->getCategories(),
+      'thumbnail' => $template->getThumbnail(),
+      'name' => $template->getName(),
+      'description' => $template->getDescription(),
+      'readonly' => $template->getReadonly(),
+      'body' => $template->getBody(),
+      'created_at' => $template->getCreatedAt()->format(self::DATE_FORMAT),
+      'updated_at' => $template->getUpdatedAt()->format(self::DATE_FORMAT),
+      'newsletter_id' => ($newsletter = $template->getNewsletter()) ? $newsletter->getId() : null,
+    ];
+  }
+
   /**
    * @param NewsletterTemplateEntity[] $newsletterTemplates
    * @return mixed[]

lib/API/JSON/v1/NewsletterTemplates.php

@@ -34,17 +34,18 @@ class NewsletterTemplates extends APIEndpoint {
   }
 
   public function get($data = []) {
-    $id = (isset($data['id']) ? (int)$data['id'] : false);
+    $template = isset($data['id'])
-    $template = NewsletterTemplate::findOne($id);
+      ? $this->newsletterTemplatesRepository->findOneById((int)$data['id'])
-    if ($template instanceof NewsletterTemplate) {
+      : null;
-      return $this->successResponse(
+
-        $template->asArray()
+    if (!$template) {
-      );
-    } else {
       return $this->errorResponse([
         APIError::NOT_FOUND => WPFunctions::get()->__('This template does not exist.', 'mailpoet'),
       ]);
     }
+
+    $data = $this->newsletterTemplatesResponseBuilder->build($template);
+    return $this->successResponse($data);
   }
 
   public function getAll() {