[patch] Rename chinese language

frappe/patches.txt

@@ -84,3 +84,4 @@ frappe.patches.v5_0.expire_old_scheduler_logs
 execute:frappe.permissions.reset_perms("DocType")
 execute:frappe.db.sql("delete from `tabProperty Setter` where `property` = 'idx'")
 frappe.patches.v5_2.change_checks_to_not_null
+frappe.patches.v5_3.rename_chinese_languages

frappe/patches/v5_3/rename_chinese_languages.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	language_map = {
+		"中国（简体）": "簡體中文",
+		"中國（繁體）": "正體中文"
+	}
+
+	language_in_system_settings = frappe.db.get_single_value("System Settings", "language")
+	if language_in_system_settings in language_map:
+		new_language_name = language_map[language_in_system_settings]
+		frappe.db.set_value("System Settings", "System Settings", "language", new_language_name)
+
+	for old_name, new_name in language_map.items():
+		frappe.db.sql("""update `tabUser` set language=%(new_name)s where language=%(old_name)s""",
+			{ "old_name": old_name, "new_name": new_name })