fix: pos item price in get_item and item search (backport #47925) (#48217)

fix: pos item price in get_item and item search (#47925)

* fix: pos get item and item search

* refactor: resolved linter issue and renamed variables

* fix: uom on get_item

* fix: incorrect item quantity on pos selector

* refactor: remove unused import

(cherry picked from commit 919684a787)

Co-authored-by: Diptanil Saha <diptanil@frappe.io>

erpnext/selling/page/point_of_sale/point_of_sale.py

@@ -10,6 +10,7 @@ from frappe.utils.nestedset import get_root_of
 
 from erpnext.accounts.doctype.pos_invoice.pos_invoice import get_stock_availability
 from erpnext.accounts.doctype.pos_profile.pos_profile import get_child_nodes, get_item_groups
+from erpnext.stock.get_item_details import get_conversion_factor
 from erpnext.stock.utils import scan_barcode
 
 
@@ -66,6 +67,9 @@ def search_by_term(search_term, warehouse, price_list):
 	if batch_no:
 		price_filters["batch_no"] = ["in", [batch_no, ""]]
 
+	if serial_no:
+		price_filters["uom"] = item_doc.stock_uom
+
 	price = frappe.get_list(
 		doctype="Item Price",
 		filters=price_filters,
@@ -158,7 +162,8 @@ def get_items(start, page_length, price_list, item_group, pos_profile, search_te
 			item.description,
 			item.stock_uom,
 			item.image AS item_image,
-			item.is_stock_item
+			item.is_stock_item,
+			item.sales_uom
 		FROM
 			`tabItem` item {bin_join_selection}
 		WHERE
@@ -192,12 +197,9 @@ def get_items(start, page_length, price_list, item_group, pos_profile, search_te
 	current_date = frappe.utils.today()
 
 	for item in items_data:
-		uoms = frappe.get_doc("Item", item.item_code).get("uoms", [])
-
 		item.actual_qty, _ = get_stock_availability(item.item_code, warehouse)
-		item.uom = item.stock_uom
 
-		item_price = frappe.get_all(
+		item_prices = frappe.get_all(
 			"Item Price",
 			fields=["price_list_rate", "currency", "uom", "batch_no", "valid_from", "valid_upto"],
 			filters={
@@ -208,27 +210,40 @@ def get_items(start, page_length, price_list, item_group, pos_profile, search_te
 				"valid_upto": ["in", [None, "", current_date]],
 			},
 			order_by="valid_from desc",
-			limit=1,
 		)
 
-		if not item_price:
+		stock_uom_price = next((d for d in item_prices if d.get("uom") == item.stock_uom), {})
-			result.append(item)
+		item_uom = item.stock_uom
+		item_uom_price = stock_uom_price
 
-		for price in item_price:
+		if item.sales_uom and item.sales_uom != item.stock_uom:
-			uom = next(filter(lambda x: x.uom == price.uom, uoms), {})
+			item_uom = item.sales_uom
+			sales_uom_price = next((d for d in item_prices if d.get("uom") == item.sales_uom), {})
+			if sales_uom_price:
+				item_uom_price = sales_uom_price
 
-			if price.uom != item.stock_uom and uom and uom.conversion_factor:
+		if item_prices and not item_uom_price:
-				item.actual_qty = item.actual_qty // uom.conversion_factor
+			item_uom = item_prices[0].get("uom")
+			item_uom_price = item_prices[0]
+
+		item_conversion_factor = get_conversion_factor(item.item_code, item_uom).get("conversion_factor")
+
+		if item.stock_uom != item_uom:
+			item.actual_qty = item.actual_qty // item_conversion_factor
+
+		if item_uom_price and item_uom != item_uom_price.get("uom"):
+			item_uom_price.price_list_rate = item_uom_price.price_list_rate * item_conversion_factor
+
+		result.append(
+			{
+				**item,
+				"price_list_rate": item_uom_price.get("price_list_rate"),
+				"currency": item_uom_price.get("currency"),
+				"uom": item_uom,
+				"batch_no": item_uom_price.get("batch_no"),
+			}
+		)
 
-			result.append(
-				{
-					**item,
-					"price_list_rate": price.get("price_list_rate"),
-					"currency": price.get("currency"),
-					"uom": price.uom or item.uom,
-					"batch_no": price.batch_no,
-				}
-			)
 	return {"items": result}