Use doctrine for latest post fetching

[MAILPOET-2899]

lib/DI/ContainerConfigurator.php

@@ -265,6 +265,7 @@ class ContainerConfigurator implements IContainerConfigurator {
     // Newsletter
     $container->autowire(\MailPoet\Newsletter\AutomatedLatestContent::class)->setPublic(true);
     $container->autowire(\MailPoet\Newsletter\NewsletterSaveController::class)->setPublic(true);
+    $container->autowire(\MailPoet\Newsletter\NewsletterPostsRepository::class)->setPublic(true);
     $container->autowire(\MailPoet\Newsletter\NewslettersRepository::class)->setPublic(true);
     $container->autowire(\MailPoet\Newsletter\Listing\NewsletterListingRepository::class)->setPublic(true);
     $container->autowire(\MailPoet\Newsletter\Options\NewsletterOptionsRepository::class)->setPublic(true);

lib/Entities/NewsletterPostEntity.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace MailPoet\Entities;
+
+use MailPoet\Doctrine\EntityTraits\AutoincrementedIdTrait;
+use MailPoet\Doctrine\EntityTraits\CreatedAtTrait;
+use MailPoet\Doctrine\EntityTraits\SafeToOneAssociationLoadTrait;
+use MailPoet\Doctrine\EntityTraits\UpdatedAtTrait;
+use MailPoetVendor\Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity()
+ * @ORM\Table(name="newsletter_posts")
+ */
+class NewsletterPostEntity {
+  use AutoincrementedIdTrait;
+  use CreatedAtTrait;
+  use UpdatedAtTrait;
+  use SafeToOneAssociationLoadTrait;
+
+  /**
+   * @ORM\ManyToOne(targetEntity="MailPoet\Entities\NewsletterEntity", inversedBy="newsletterSegments")
+   * @var NewsletterEntity
+   */
+  private $newsletter;
+
+  /**
+   * @ORM\Column(type="int")
+   * @var int
+   */
+  private $postId;
+
+  public function __construct(NewsletterEntity $newsletter, int $postId) {
+    $this->newsletter = $newsletter;
+    $this->postId = $postId;
+  }
+
+  /**
+   * @return NewsletterEntity|null
+   */
+  public function getNewsletter() {
+    $this->safelyLoadToOneAssociation('newsletter');
+    return $this->newsletter;
+  }
+
+  /**
+   * @return int
+   */
+  public function getPostId(): int {
+    return $this->postId;
+  }
+}

lib/Models/NewsletterPost.php

@@ -10,9 +10,4 @@ namespace MailPoet\Models;
 class NewsletterPost extends Model {
   public static $_table = MP_NEWSLETTER_POSTS_TABLE; // phpcs:ignore PSR2.Classes.PropertyDeclaration
 
-  public static function getNewestNewsletterPost($newsletterId) {
-    return self::where('newsletter_id', $newsletterId)
-      ->orderByDesc('created_at')
-      ->findOne();
-  }
 }

lib/Newsletter/NewsletterPostsRepository.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace MailPoet\Newsletter;
+
+use MailPoet\Doctrine\Repository;
+use MailPoet\Entities\NewsletterPostEntity;
+
+/**
+ * @extends Repository<NewsletterPostEntity>
+ */
+class NewsletterPostsRepository extends Repository {
+  protected function getEntityClassName() {
+    return NewsletterPostEntity::class;
+  }
+}

lib/Newsletter/Renderer/Blocks/Renderer.php

@@ -3,9 +3,10 @@
 namespace MailPoet\Newsletter\Renderer\Blocks;
 
 use MailPoet\Entities\NewsletterEntity;
+use MailPoet\Entities\NewsletterPostEntity;
 use MailPoet\Models\Newsletter;
-use MailPoet\Models\NewsletterPost;
 use MailPoet\Newsletter\AutomatedLatestContent;
+use MailPoet\Newsletter\NewsletterPostsRepository;
 use MailPoet\Newsletter\Renderer\Columns\ColumnsHelper;
 use MailPoet\Newsletter\Renderer\StylesHelper;
 
@@ -37,7 +38,11 @@ class Renderer {
   /** @var Text */
   private $text;
 
+  /** @var NewsletterPostsRepository */
+  private $newsletterPostsRepository;
+
   public function __construct(
+    NewsletterPostsRepository $newsletterPostsRepository,
     AutomatedLatestContent $ALC,
     Button $button,
     Divider $divider,
@@ -58,6 +63,7 @@ class Renderer {
     $this->social = $social;
     $this->spacer = $spacer;
     $this->text = $text;
+    $this->newsletterPostsRepository = $newsletterPostsRepository;
   }
 
   public function render(NewsletterEntity $newsletter, $data) {
@@ -126,9 +132,9 @@ class Renderer {
       if ($parent instanceof NewsletterEntity) {
         $newsletterId = $parent->getId();
 
-        $lastPost = NewsletterPost::getNewestNewsletterPost($newsletterId);
-        if ($lastPost) {
-          $newerThanTimestamp = $lastPost->createdAt;
+        $lastPost = $this->newsletterPostsRepository->findOneBy(['newsletter' => $newsletter], ['createdAt' => 'desc']);
+        if ($lastPost instanceof NewsletterPostEntity) {
+          $newerThanTimestamp = $lastPost->getCreatedAt();
         }
 
       }

tests/integration/Models/NewsletterPostTest.php

@@ -1,26 +0,0 @@
-<?php
-
-namespace MailPoet\Test\Models;
-
-use MailPoet\Models\NewsletterPost;
-use MailPoetVendor\Carbon\Carbon;
-
-class NewsletterPostTest extends \MailPoetTest {
-  public function testItCanGetLatestNewsletterPost() {
-    foreach (range(1, 5) as $index) {
-      $newsletterPost = NewsletterPost::create();
-      $newsletterPost->newsletterId = 1;
-      $newsletterPost->postId = $index;
-      $newsletterPost->save();
-      $newsletterPost->createdAt = Carbon::now()
-        ->addMinutes($index);
-      $newsletterPost->save();
-    }
-    $latestNewsletterPost = NewsletterPost::getNewestNewsletterPost(1);
-    expect($latestNewsletterPost->postId)->equals(5);
-  }
-
-  public function _after() {
-    NewsletterPost::deleteMany();
-  }
-}