feat: Config to enable immutable ledger

erpnext/accounts/doctype/accounts_settings/accounts_settings.js

@@ -3,4 +3,23 @@
 
 frappe.ui.form.on("Accounts Settings", {
 	refresh: function (frm) {},
+	enable_immutable_ledger: function (frm) {
+		if (!frm.doc.enable_immutable_ledger) {
+			return;
+		}
+
+		let msg = __("Enabling this will change the way how cancelled transactions are handled.");
+		msg += " ";
+		msg += __("Please enable only if the understand the effects of enabling this.");
+		msg += "<br>";
+		msg += "Do you still want to enable immutable ledger?";
+
+		frappe.confirm(
+			msg,
+			() => {},
+			() => {
+				frm.set_value("enable_immutable_ledger", 0);
+			}
+		);
+	},
 });

erpnext/accounts/doctype/accounts_settings/accounts_settings.json

@@ -12,6 +12,7 @@
   "unlink_advance_payment_on_cancelation_of_order",
   "column_break_13",
   "delete_linked_ledger_entries",
+  "enable_immutable_ledger",
   "invoicing_features_section",
   "check_supplier_invoice_uniqueness",
   "automatically_fetch_payment_terms",
@@ -454,6 +455,13 @@
    "fieldname": "remarks_section",
    "fieldtype": "Section Break",
    "label": "Remarks Column Length"
+  },
+  {
+   "default": "0",
+   "description": "On enabling this cancellation entries will be posted on the actual cancellation date and reports will consider cancelled entries as well",
+   "fieldname": "enable_immutable_ledger",
+   "fieldtype": "Check",
+   "label": "Enable Immutable Ledger"
   }
  ],
  "icon": "icon-cog",
@@ -461,7 +469,7 @@
  "index_web_pages_for_search": 1,
  "issingle": 1,
  "links": [],
- "modified": "2024-03-27 13:05:57.568638",
+ "modified": "2024-05-11 23:19:44.673975",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Accounts Settings",

erpnext/accounts/doctype/accounts_settings/accounts_settings.py

@@ -39,6 +39,7 @@ class AccountsSettings(Document):
 		determine_address_tax_category_from: DF.Literal["Billing Address", "Shipping Address"]
 		enable_common_party_accounting: DF.Check
 		enable_fuzzy_matching: DF.Check
+		enable_immutable_ledger: DF.Check
 		enable_party_matching: DF.Check
 		frozen_accounts_modifier: DF.Link | None
 		general_ledger_remarks_length: DF.Int

erpnext/accounts/general_ledger.py

@@ -8,6 +8,7 @@ import frappe
 from frappe import _
 from frappe.model.meta import get_field_precision
 from frappe.utils import cint, flt, formatdate, getdate, now
+from frappe.utils.dashboard import cache_source
 
 import erpnext
 from erpnext.accounts.doctype.accounting_dimension.accounting_dimension import (
@@ -574,6 +575,8 @@ def make_reverse_gl_entries(
 	and make reverse gl entries by swapping debit and credit
 	"""
 
+	immutable_ledger_enabled = is_immutable_ledger_enabled()
+
 	if not gl_entries:
 		gl_entry = frappe.qb.DocType("GL Entry")
 		gl_entries = (
@@ -605,7 +608,6 @@ def make_reverse_gl_entries(
 			for x in gl_entries:
 				query = (
 					frappe.qb.update(gle)
-					.set(gle.is_cancelled, True)
 					.set(gle.modified, now())
 					.set(gle.modified_by, frappe.session.user)
 					.where(
@@ -620,9 +622,14 @@ def make_reverse_gl_entries(
 						& (gle.voucher_detail_no == x.voucher_detail_no)
 					)
 				)
+
+				if not immutable_ledger_enabled:
+					query = query.set(gle.is_cancelled, True)
+
 				query.run()
 		else:
-			set_as_cancel(gl_entries[0]["voucher_type"], gl_entries[0]["voucher_no"])
+			if not immutable_ledger_enabled:
+				set_as_cancel(gl_entries[0]["voucher_type"], gl_entries[0]["voucher_no"])
 
 		for entry in gl_entries:
 			new_gle = copy.deepcopy(entry)
@@ -641,6 +648,10 @@ def make_reverse_gl_entries(
 			new_gle["remarks"] = "On cancellation of " + new_gle["voucher_no"]
 			new_gle["is_cancelled"] = 1
 
+			if immutable_ledger_enabled:
+				new_gle["is_cancelled"] = 0
+				new_gle["posting_date"] = frappe.form_dict.get("posting_date") or getdate()
+
 			if new_gle["debit"] or new_gle["credit"]:
 				make_entry(new_gle, adv_adj, "Yes")
 
@@ -733,3 +744,7 @@ def validate_allowed_dimensions(gl_entry, dimension_filter_map):
 						),
 						InvalidAccountDimensionError,
 					)
+
+
+def is_immutable_ledger_enabled():
+	return frappe.db.get_single_value("Accounts Settings", "enable_immutable_ledger")