app/Models/Line.php

@@ -61,6 +61,11 @@ class Line extends Model
         return $this->hasMany(ProcessOrder::class);
     }
 
+    public function machines()
+    {
+        return $this->hasMany(Machine::class);
+    }
+
     public function productCharacteristicsMasters()
     {
         return $this->hasMany(ProductCharacteristicsMaster::class);