[TASK] Check for filter keys

Classes/Domain/Repository/JobRepository.php

@@ -87,13 +87,15 @@ class JobRepository extends Repository {
 		$query->getQuerySettings()->setStoragePageIds([$recordPageId]);
 		$query->getQuerySettings()->setIgnoreEnableFields(TRUE);
 		$constraints = [];
-		if (\is_array($filters['locations'])) {
-			$constraints[] = $query->in('company.city', $filters['locations']);
-		} elseif ($filters['locations'] !== '' && $filters['locations'] !== NULL) {
-			$constraints[] = $query->equals('company.city', $filters['locations']);
+		if (isset($filters['locations'])) {
+			if (\is_array($filters['locations'])) {
+				$constraints[] = $query->in('company.city', $filters['locations']);
+			} elseif ($filters['locations'] !== '') {
+				$constraints[] = $query->equals('company.city', $filters['locations']);
+			}
 		}
 
-		if ($filters['search'] !== '' && $filters['search'] !== NULL) {
+		if (isset($filters['search']) && $filters['search'] !== '') {
 			$constraints[] = $query->like('title', '%' . $filters['search'] . '%');
 		}