Handling empty gantt

app/Helpers/MasterFunctionsHelper.php

@@ -35,10 +35,16 @@ class MasterFunctionsHelper {
 
 	public function getLatestGantt($id){
 		$maxGanttId = VersionGantt::where("proyek_id", $id)->max("id");
+    if(!$maxGanttId){
+       $data = array(
+            "proyek_id" => $id
+        );
+    } else {
         $data = array(
             "last_gantt_id" => $maxGanttId,
             "proyek_id" => $id
         );
+    }
         return $data;
 	}
 

app/Http/Controllers/DashboardBoDController.php

@@ -319,8 +319,12 @@ class DashboardBoDController extends Controller
 
 			$project->pm = User::find($project->pm_id);
 			/* $project->header = Activity::where('proyek_id', $project->id)->where('version_gantt_id', $lastGantt['last_gantt_id'])->whereNull('parent_id')->first(); */
-			$project->scurve = MasterFunctionsHelper::getSCurve($project->id);
-			$project->manPowers = UserToVersionGantt::where('version_gantt_id', $lastGantt['last_gantt_id'])->count();
+      if(!isset($lastGantt['last_gantt_id'])){
+        $project->manPowers = 0;
+      } else {
+        $project->manPowers = UserToVersionGantt::where('version_gantt_id', $lastGantt['last_gantt_id'])->count();
+        $project->scurve = MasterFunctionsHelper::getSCurve($project->id);
+      }
 			$project->lastGanttId = MasterFunctionsHelper::getLatestGantt($project->id);
 		}