fix: validation to check at-least one raw material for manufacture entry

(cherry picked from commit f003b3c)

Author: rohitwaghchaure

erpnext/stock/doctype/stock_entry/stock_entry.py

@@ -278,9 +278,30 @@ def validate(self):
 
 		self.validate_closed_subcontracting_order()
 		self.validate_subcontract_order()
+		self.validate_raw_materials_exists()
 
 		super().validate_subcontracting_inward()
 
+	def validate_raw_materials_exists(self):
+		if self.purpose not in ["Manufacture", "Repack", "Disassemble"]:
+			return
+
+		if frappe.db.get_single_value("Manufacturing Settings", "material_consumption"):
+			return
+
+		raw_materials = []
+		for row in self.items:
+			if row.s_warehouse:
+				raw_materials.append(row.item_code)
+
+		if not raw_materials:
+			frappe.throw(
+				_(
+					"At least one raw material item must be present in the stock entry for the type {0}"
+				).format(bold(self.purpose)),
+				title=_("Raw Materials Missing"),
+			)
+
 	def set_serial_batch_for_disassembly(self):
 		if self.purpose != "Disassemble":
 			return

erpnext/stock/doctype/stock_entry/test_stock_entry.py

@@ -2362,6 +2362,28 @@ def test_sample_retention_stock_entry(self):
 		self.assertEqual(target_sabb.entries[0].batch_no, batch)
 		self.assertEqual([entry.serial_no for entry in target_sabb.entries], serial_nos[:2])
 
+	def test_raw_material_missing_validation(self):
+		original_value = frappe.db.get_single_value("Manufacturing Settings", "material_consumption")
+		frappe.db.set_single_value("Manufacturing Settings", "material_consumption", 0)
+
+		stock_entry = make_stock_entry(
+			item_code="_Test Item",
+			qty=1,
+			target="_Test Warehouse - _TC",
+			do_not_save=True,
+		)
+
+		stock_entry.purpose = "Manufacture"
+		stock_entry.stock_entry_type = "Manufacture"
+		stock_entry.items[0].is_finished_item = 1
+
+		self.assertRaises(
+			frappe.ValidationError,
+			stock_entry.save,
+		)
+
+		frappe.db.set_single_value("Manufacturing Settings", "material_consumption", original_value)
+
 
 def make_serialized_item(self, **args):
 	args = frappe._dict(args)