Internal: Refactoring method to get the admin user in migrations

.env.test

@@ -5,14 +5,14 @@ SYMFONY_DEPRECATIONS_HELPER=999999
 PANTHER_APP_ENV=panther
 PANTHER_ERROR_SCREENSHOT_DIR=./var/error-screenshots
 
-DATABASE_HOST='127.0.0.1'
+DATABASE_HOST='database'
 DATABASE_PORT='3306'
-DATABASE_NAME='chamilo_test'
+DATABASE_NAME='chamilo2'
 DATABASE_USER='root'
-DATABASE_PASSWORD='root'
+DATABASE_PASSWORD='afqc'
 
 APP_INSTALLED='1'
 APP_ENV='test'
 APP_DEBUG='1'
 APP_LOCALE='en_US'
-APP_MULTIPLE_ACCESS_URL=''
+APP_MULTIPLE_ACCESS_URL=''

src/CoreBundle/Migrations/AbstractMigrationChamilo.php

@@ -8,6 +8,7 @@ namespace Chamilo\CoreBundle\Migrations;
 
 use Chamilo\CoreBundle\Entity\AbstractResource;
 use Chamilo\CoreBundle\Entity\AccessUrl;
+use Chamilo\CoreBundle\Entity\Admin;
 use Chamilo\CoreBundle\Entity\ResourceInterface;
 use Chamilo\CoreBundle\Entity\ResourceLink;
 use Chamilo\CoreBundle\Entity\SettingsCurrent;
@@ -66,17 +67,12 @@ abstract class AbstractMigrationChamilo extends AbstractMigration implements Con
 
     public function getAdmin(): User
     {
-        $container = $this->getContainer();
-        $em = $this->getEntityManager();
-        $connection = $em->getConnection();
-        $userRepo = $container->get(UserRepository::class);
-
-        $sql = 'SELECT user_id FROM admin ORDER BY id LIMIT 1';
-        $result = $connection->executeQuery($sql);
-        $adminRow = $result->fetchAssociative();
-        $adminId = $adminRow['user_id'];
+        $admin = $this->getEntityManager()
+            ->getRepository(Admin::class)
+            ->findOneBy([], ['id' => 'ASC'])
+        ;
 
-        return $userRepo->find($adminId);
+        return $admin->getUser();
     }
 
     /**