diff --git a/app/DotsAPI/API/v2/AbstractItemAPI.php b/app/DotsAPI/API/v2/AbstractItemAPI.php
index 7119614..a9d44ba 100644
--- a/app/DotsAPI/API/v2/AbstractItemAPI.php
+++ b/app/DotsAPI/API/v2/AbstractItemAPI.php
@@ -15,6 +15,6 @@ abstract class AbstractItemAPI
 
     abstract public function getMap($context = null);
 
-    abstract public function saveMap($map);
+    abstract public function saveMap($map, $parent = null);
 }
 
diff --git a/app/DotsAPI/API/v2/CityAPI.php b/app/DotsAPI/API/v2/CityAPI.php
index 5594870..d6d9420 100644
--- a/app/DotsAPI/API/v2/CityAPI.php
+++ b/app/DotsAPI/API/v2/CityAPI.php
@@ -15,7 +15,7 @@ class CityAPI extends AbstractItemAPI
         return $citiesMap;
     }
 
-    public function saveMap($cities) {
+    public function saveMap($cities, $parent = null) {
         foreach ($cities as $city) {
             $uuid = $city['id'];
             $name = $city['name'];
diff --git a/app/DotsAPI/API/v2/CompanyAPI.php b/app/DotsAPI/API/v2/CompanyAPI.php
index 5feb350..e193997 100644
--- a/app/DotsAPI/API/v2/CompanyAPI.php
+++ b/app/DotsAPI/API/v2/CompanyAPI.php
@@ -15,7 +15,7 @@ class CompanyAPI extends AbstractItemAPI
         return $companiesMap;
     }
 
-    public function saveMap($companies) {
+    public function saveMap($companies, $city = null) {
         foreach ($companies as $company) {
             $uuid = $company['id'];
             $name = $company['name'];