fix: patch regional fields for old companies (#24999)

* fix: patch regional fields for old companies

* chore: fix sider
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 59b12f3..c686635 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -759,3 +759,4 @@
 erpnext.patches.v13_0.setup_fields_for_80g_certificate_and_donation
 erpnext.patches.v13_0.rename_membership_settings_to_non_profit_settings
 erpnext.patches.v13_0.setup_gratuity_rule_for_india_and_uae
+erpnext.patches.v13_0.setup_uae_vat_fields
diff --git a/erpnext/patches/v13_0/setup_uae_vat_fields.py b/erpnext/patches/v13_0/setup_uae_vat_fields.py
new file mode 100644
index 0000000..ee55bb8
--- /dev/null
+++ b/erpnext/patches/v13_0/setup_uae_vat_fields.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2019, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+import frappe
+from erpnext.regional.united_arab_emirates.setup import setup
+
+def execute():
+	company = frappe.get_all('Company', filters = {'country': 'United Arab Emirates'})
+	if not company:
+		return
+
+	setup()