Add filter class for WooCommerce subscriptions filter

[MAILPOET-3471]

lib/DI/ContainerConfigurator.php

@@ -274,6 +274,7 @@ class ContainerConfigurator implements IContainerConfigurator {
     $container->autowire(\MailPoet\Segments\DynamicSegments\Filters\WooCommerceCategory::class)->setPublic(true);
     $container->autowire(\MailPoet\Segments\DynamicSegments\Filters\WooCommerceNumberOfOrders::class)->setPublic(true);
     $container->autowire(\MailPoet\Segments\DynamicSegments\Filters\WooCommerceProduct::class)->setPublic(true);
+    $container->autowire(\MailPoet\Segments\DynamicSegments\Filters\WooCommerceSubscription::class)->setPublic(true);
     $container->autowire(\MailPoet\Segments\DynamicSegments\SegmentSaveController::class)->setPublic(true);
     $container->autowire(\MailPoet\Segments\DynamicSegments\FilterDataMapper::class)->setPublic(true);
     // Services

lib/Entities/DynamicSegmentFilterData.php

@@ -11,6 +11,7 @@ class DynamicSegmentFilterData {
   const TYPE_USER_ROLE = 'userRole';
   const TYPE_EMAIL = 'email';
   const TYPE_WOOCOMMERCE = 'woocommerce';
+  const TYPE_WOOCOMMERCE_SUBSCRIPTION = 'woocommerceSubscription';
 
   /**
    * @ORM\Column(type="serialized_array")

lib/Segments/DynamicSegments/Filters/WooCommerceSubscription.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace MailPoet\Segments\DynamicSegments\Filters;
+
+use MailPoet\Entities\DynamicSegmentFilterEntity;
+use MailPoet\Entities\SubscriberEntity;
+use MailPoetVendor\Doctrine\DBAL\Query\QueryBuilder;
+use MailPoetVendor\Doctrine\ORM\EntityManager;
+
+class WooCommerceSubscription implements Filter {
+  const ACTION_HAS_ACTIVE = 'hasActiveSubscription';
+
+  /** @var EntityManager */
+  private $entityManager;
+
+  public function __construct(EntityManager $entityManager) {
+    $this->entityManager = $entityManager;
+  }
+
+  public function apply(QueryBuilder $queryBuilder, DynamicSegmentFilterEntity $filter): QueryBuilder {
+    global $wpdb;
+    $filterData = $filter->getFilterData();
+    $productId = (int)$filterData->getParam('product_id');
+    $subscribersTable = $this->entityManager->getClassMetadata(SubscriberEntity::class)->getTableName();
+    return $queryBuilder->innerJoin(
+      $subscribersTable,
+      $wpdb->postmeta,
+      'postmeta',
+      "postmeta.meta_key = '_customer_user' AND $subscribersTable.wp_user_id=postmeta.meta_value"
+    )->innerJoin('postmeta',
+      $wpdb->posts,
+        'posts',
+        'postmeta.post_id = posts.id AND posts.post_type = "shop_subscription" AND posts.post_status = "wc-active"'
+    )->innerJoin('postmeta',
+      $wpdb->prefix . 'woocommerce_order_items',
+      'items',
+      'postmeta.post_id = items.order_id'
+    )->innerJoin(
+      'items',
+      $wpdb->prefix . 'woocommerce_order_itemmeta',
+      'itemmeta',
+      "itemmeta.order_item_id=items.order_item_id AND itemmeta.meta_key='_product_id' AND itemmeta.meta_value=:product" . $filter->getId()
+    )->setParameter('product' . $filter->getId(), $productId);
+  }
+}