[ADD] account_account_constraint_code

account_account_constraint_code/models/account_account.py

@@ -0,0 +1,22 @@
+# Copyright 2022 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, models
+from odoo.exceptions import ValidationError
+
+
+class AccountAccount(models.Model):
+
+    _inherit = "account.account"
+
+    @api.constrains("code")
+    def _disable_code_modification(self):
+        line = (
+            self.env["account.move.line"]
+            .sudo()
+            .search([("account_id", "in", self.ids)], limit=1)
+        )
+        if line:
+            raise ValidationError(
+                _("You cannot change the code of account which contains journal items.")
+            )