add cmms machine relation

app/Models/RoadItemsProject.php

@@ -3,6 +3,7 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Relations\HasOne;
 use Illuminate\Http\UploadedFile;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
@@ -170,6 +171,11 @@ class RoadItemsProject extends Model
         }
     }
 
+    public function cmmsMachine(): HasOne
+    {
+        return $this->hasOne(CMMSMachine::class);
+    }
+
     public function rahdaran(): BelongsToMany
     {
         return $this->belongsToMany(Rahdaran::class,'rahdaran_road_items_project');