Add ga campaign to api response

[MAILPOET-2397]

lib/API/JSON/ResponseBuilders/NewslettersResponseBuilder.php

@@ -31,6 +31,7 @@ class NewslettersResponseBuilder {
       'options' => $this->buildOptions($newsletter),
       'queue' => ($queue = $newsletter->getLatestQueue()) ? $this->buildQueue($queue) : false, // false for BC
       'unsubscribe_token' => $newsletter->getUnsubscribeToken(),
+      'ga_campaign' => $newsletter->getGaCampaign(),
     ];
   }
 

lib/Entities/NewsletterEntity.php

@@ -111,6 +111,12 @@ class NewsletterEntity {
    */
   private $unsubscribe_token;
 
+  /**
+   * @Column(type="string")
+   * @var string
+   */
+  private $ga_campaign;
+
   /**
    * @ManyToOne(targetEntity="MailPoet\Entities\NewsletterEntity")
    * @var NewsletterEntity|null
@@ -302,6 +308,21 @@ class NewsletterEntity {
     return $this->unsubscribe_token;
   }
 
+  /**
+   * @return string
+   */
+  public function getGaCampaign() {
+    return $this->ga_campaign;
+  }
+
+  /**
+   * @param string $ga_campaign
+   */
+  public function setGaCampaign($ga_campaign) {
+    $this->ga_campaign = $ga_campaign;
+  }
+
+
   /**
    * @param string|null $unsubscribe_token
    */

tests/integration/API/JSON/v1/NewslettersTest.php

@@ -138,8 +138,7 @@ class NewslettersTest extends \MailPoetTest {
       ContainerWrapper::getInstance()->get(NewslettersRepository::class),
       ContainerWrapper::getInstance()->get(NewslettersResponseBuilder::class),
       ContainerWrapper::getInstance()->get(PostNotificationScheduler::class),
-      ContainerWrapper::getInstance()->get(MetaInfo::class),
+      ContainerWrapper::getInstance()->get(MetaInfo::class)
-      $this->subscription_url_factory
     );
     $response = $this->endpoint->get(['id' => $this->newsletter->id]);
     expect($response->status)->equals(APIResponse::STATUS_OK);