app/Models/Item.php

@@ -60,4 +60,9 @@ class Item extends Model
     {
         return $this->hasMany(ProductCharacteristicsMaster::class);
     }
+
+    public function processOrders()
+    {
+        return $this->hasMany(ProcessOrder::class);
+    }
 }

app/Models/Line.php

@@ -161,6 +161,11 @@ class Line extends Model
         return $this->hasMany(ProductCharacteristicsMaster::class);
     }
 
+    public function processOrders()
+    {
+        return $this->hasMany(ProcessOrder::class);
+    }
+
     // public function rejectReasons()
     // {
     //     return $this->hasMany(RejectReason::class, 'line_id', 'id');