Created services and command to process visits

module/Core/src/Repository/VisitRepository.php

@@ -0,0 +1,19 @@
+<?php
+namespace Shlinkio\Shlink\Core\Repository;
+
+use Doctrine\ORM\EntityRepository;
+use Shlinkio\Shlink\Core\Entity\Visit;
+
+class VisitRepository extends EntityRepository implements VisitRepositoryInterface
+{
+    /**
+     * @return Visit[]
+     */
+    public function findUnlocatedVisits()
+    {
+        $qb = $this->createQueryBuilder('v');
+        $qb->where($qb->expr()->isNull('v.visitLocation'));
+
+        return $qb->getQuery()->getResult();
+    }
+}

module/Core/src/Repository/VisitRepositoryInterface.php

@@ -0,0 +1,13 @@
+<?php
+namespace Shlinkio\Shlink\Core\Repository;
+
+use Doctrine\Common\Persistence\ObjectRepository;
+use Shlinkio\Shlink\Core\Entity\Visit;
+
+interface VisitRepositoryInterface extends ObjectRepository
+{
+    /**
+     * @return Visit[]
+     */
+    public function findUnlocatedVisits();
+}