app/Models/Item.php

@@ -129,4 +129,9 @@ class Item extends Model
     {
         return $this->hasMany(CoilPacking::class, 'item_id', 'id');
     }
+
+    public function productionTemp()
+    {
+        return $this->hasMany(ProductionTemp::class, 'item_id', 'id');
+    }
 }