fix: don't allow to make reposting for the closed period

erpnext/accounts/doctype/period_closing_voucher/test_period_closing_voucher.py

@@ -205,7 +205,7 @@ def test_gl_entries_restrictions(self):
 
 		self.assertRaises(frappe.ValidationError, jv1.submit)
 
-	def test_closing_balance_with_dimensions(self):
+	def test_closing_balance_with_dimensions_and_test_reposting_entry(self):
 		frappe.db.sql("delete from `tabGL Entry` where company='Test PCV Company'")
 		frappe.db.sql("delete from `tabPeriod Closing Voucher` where company='Test PCV Company'")
 		frappe.db.sql("delete from `tabAccount Closing Balance` where company='Test PCV Company'")
@@ -299,6 +299,24 @@ def test_closing_balance_with_dimensions(self):
 		self.assertEqual(cc2_closing_balance.credit, 500)
 		self.assertEqual(cc2_closing_balance.credit_in_account_currency, 500)
 
+		warehouse = frappe.db.get_value("Warehouse", {"company": company}, "name")
+
+		repost_doc = frappe.get_doc(
+			{
+				"doctype": "Repost Item Valuation",
+				"company": company,
+				"posting_date": "2020-03-15",
+				"based_on": "Item and Warehouse",
+				"item_code": "Test Item 1",
+				"warehouse": warehouse,
+			}
+		)
+
+		self.assertRaises(frappe.ValidationError, repost_doc.save)
+
+		repost_doc.posting_date = today()
+		repost_doc.save()
+
 	def make_period_closing_voucher(self, posting_date=None, submit=True):
 		surplus_account = create_account()
 		cost_center = create_cost_center("Test Cost Center 1")

erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.py

@@ -6,7 +6,7 @@
 from frappe.exceptions import QueryDeadlockError, QueryTimeoutError
 from frappe.model.document import Document
 from frappe.query_builder import DocType, Interval
-from frappe.query_builder.functions import Now
+from frappe.query_builder.functions import Max, Now
 from frappe.utils import cint, get_link_to_form, get_weekday, getdate, now, nowtime
 from frappe.utils.user import get_users_with_role
 from rq.timeouts import JobTimeoutException
@@ -36,11 +36,38 @@ def clear_old_logs(days=None):
 		)
 
 	def validate(self):
+		self.validate_period_closing_voucher()
 		self.set_status(write=False)
 		self.reset_field_values()
 		self.set_company()
 		self.validate_accounts_freeze()
 
+	def validate_period_closing_voucher(self):
+		year_end_date = self.get_max_year_end_date(self.company)
+		if year_end_date and getdate(self.posting_date) <= getdate(year_end_date):
+			msg = f"Due to period closing, you cannot repost item valuation before {year_end_date}"
+			frappe.throw(_(msg))
+
+	@staticmethod
+	def get_max_year_end_date(company):
+		data = frappe.get_all(
+			"Period Closing Voucher", fields=["fiscal_year"], filters={"docstatus": 1, "company": company}
+		)
+
+		if not data:
+			return
+
+		fiscal_years = [d.fiscal_year for d in data]
+		table = frappe.qb.DocType("Fiscal Year")
+
+		query = (
+			frappe.qb.from_(table)
+			.select(Max(table.year_end_date))
+			.where((table.name.isin(fiscal_years)) & (table.disabled == 0))
+		).run()
+
+		return query[0][0] if query else None
+
 	def validate_accounts_freeze(self):
 		acc_settings = frappe.db.get_value(
 			"Accounts Settings",