1 files changed, 11 insertions, 0 deletions
diff --git a/src/Model/Village.php b/src/Model/Village.php
index 03a57b7..ff0b7e8 100644
--- a/src/Model/Village.php
+++ b/src/Model/Village.php
@@ -143,6 +143,17 @@ class Village
     return $results[0] ?? null;
   }
 
+  public static function getPopulationDemand(int $villageId): int
+  {
+    return array_reduce(
+      Village::getUnits($villageId, Village::FETCH_UNIT_RESIDENCE, Village::RETURN_UNIT_EXISTING),
+      function ($carry, Unit $unit) {
+        return $carry + $unit->getPopulationDemand();
+      },
+      0
+    );
+  }
+
   public const FETCH_UNIT_HOME_AT_HOME = 1;
   public const FETCH_UNIT_HOME_AT_SUPPORT = 2;
   public const FETCH_UNIT_SUPPORT_AT_HOME = 3;