feat: recalculate valuation rate and stock value from Bin

Renames the Recalculate Bin Qty button to Recalculate Values and sets
valuation_rate and stock_value from the last SLE (0 when none exists).

(cherry picked from commit df79e85f53)

erpnext/stock/doctype/bin/bin.js

@@ -3,17 +3,17 @@
 
 frappe.ui.form.on("Bin", {
 	refresh(frm) {
-		frm.trigger("recalculate_bin_quantity");
+		frm.trigger("recalculate_values");
 	},
 
-	recalculate_bin_quantity(frm) {
-		frm.add_custom_button(__("Recalculate Bin Qty"), () => {
+	recalculate_values(frm) {
+		frm.add_custom_button(__("Recalculate Values"), () => {
 			frappe.call({
-				method: "recalculate_qty",
+				method: "recalculate_values",
 				freeze: true,
 				doc: frm.doc,
 				callback: function (r) {
-					frappe.show_alert(__("Bin Qty Recalculated"), 2);
+					frappe.show_alert(__("Bin Values Recalculated"), 2);
 				},
 			});
 		});

erpnext/stock/doctype/bin/bin.py

@@ -37,7 +37,7 @@ class Bin(Document):
 	# end: auto-generated types
 
 	@frappe.whitelist()
-	def recalculate_qty(self):
+	def recalculate_values(self):
 		from erpnext.manufacturing.doctype.work_order.work_order import get_reserved_qty_for_production
 		from erpnext.stock.stock_balance import (
 			get_indented_qty,
@@ -46,7 +46,10 @@ class Bin(Document):
 			get_reserved_qty,
 		)
 
-		self.actual_qty = get_actual_qty(self.item_code, self.warehouse)
+		last_sle = get_last_sle_values(self.item_code, self.warehouse)
+		self.actual_qty = last_sle.qty_after_transaction
+		self.valuation_rate = last_sle.valuation_rate
+		self.stock_value = last_sle.stock_value
 		self.planned_qty = get_planned_qty(self.item_code, self.warehouse)
 		self.indented_qty = get_indented_qty(self.item_code, self.warehouse)
 		self.ordered_qty = get_ordered_qty(self.item_code, self.warehouse)
@@ -302,20 +305,23 @@ def update_qty(bin_name, args):
 
 
 def get_actual_qty(item_code, warehouse):
+	return get_last_sle_values(item_code, warehouse).qty_after_transaction
+
+
+def get_last_sle_values(item_code, warehouse):
 	sle = frappe.qb.DocType("Stock Ledger Entry")
 
-	last_sle_qty = (
+	last_sle = (
 		frappe.qb.from_(sle)
-		.select(sle.qty_after_transaction)
+		.select(sle.qty_after_transaction, sle.valuation_rate, sle.stock_value)
 		.where((sle.item_code == item_code) & (sle.warehouse == warehouse) & (sle.is_cancelled == 0))
 		.orderby(sle.posting_datetime, order=Order.desc)
 		.orderby(sle.creation, order=Order.desc)
 		.limit(1)
-		.run()
+		.run(as_dict=True)
 	)
 
-	actual_qty = 0.0
-	if last_sle_qty:
-		actual_qty = last_sle_qty[0][0]
+	if last_sle:
+		return last_sle[0]
 
-	return actual_qty
+	return frappe._dict(qty_after_transaction=0.0, valuation_rate=0.0, stock_value=0.0)

erpnext/stock/doctype/bin/test_bin.py

@@ -26,6 +26,35 @@ class TestBin(ERPNextTestSuite):
 		bin = _create_bin(item_code, warehouse)
 		self.assertEqual(bin.item_code, item_code)
 
+	def test_recalculate_values(self):
+		from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
+
+		item_code = make_item("_TestBinRecalculateValues").name
+		warehouse = "_Test Warehouse - _TC"
+		make_stock_entry(item_code=item_code, target=warehouse, qty=10, rate=100)
+
+		bin = frappe.get_doc("Bin", {"item_code": item_code, "warehouse": warehouse})
+		bin.db_set({"actual_qty": 0, "valuation_rate": 0, "stock_value": 0})
+		bin.reload()
+		bin.recalculate_values()
+
+		self.assertEqual(bin.actual_qty, 10)
+		self.assertEqual(bin.valuation_rate, 100)
+		self.assertEqual(bin.stock_value, 1000)
+
+	def test_recalculate_values_without_sle(self):
+		item_code = make_item("_TestBinRecalculateValuesNoSLE").name
+		warehouse = "_Test Warehouse - _TC"
+
+		bin = _create_bin(item_code, warehouse)
+		bin.db_set({"actual_qty": 5, "valuation_rate": 50, "stock_value": 250})
+		bin.reload()
+		bin.recalculate_values()
+
+		self.assertEqual(bin.actual_qty, 0)
+		self.assertEqual(bin.valuation_rate, 0)
+		self.assertEqual(bin.stock_value, 0)
+
 	def test_index_exists(self):
 		indexes = frappe.db.sql("show index from tabBin where Non_unique = 0", as_dict=1)
 		if not any(index.get("Key_name") == "unique_item_warehouse" for index in indexes):