Edited method since it only has to take into consideration variants l…

…inked to a sale and not left alone parcels

app/models/product_nature_variant.rb

@@ -435,9 +435,7 @@ def current_stock
   # Return current quantity of all products link to the variant currently ordered or invoiced but not delivered
   def current_outgoing_stock_ordered_not_delivered
     sales_not_delivered = Sale.where(state: %w(order invoice)).includes(:parcels).where(parcels: { state: %w(draft ordered in_preparation prepared) })
-    sale_items_not_delivered = SaleItem.where(variant_id: id, sale_id: sales_not_delivered.pluck(:id)).sum(:quantity)
-    parcel_items_not_delivered = ParcelItem.where(variant_id: id, sale_item_id: nil).includes(:parcel).where(parcels: { state: %w(draft ordered in_preparation prepared) }).sum(:population)
-    (sale_items_not_delivered + parcel_items_not_delivered).to_f
+    SaleItem.where(variant_id: id, sale_id: sales_not_delivered.pluck(:id)).sum(:quantity).to_f
   end
 
   def picture_path(style = :original)