[FIX] web: use latin as numbering system for dates in sample datas

Steps to reproduce:

  - Set a new DB without demo data
  - Install Ecommerce
  - Switch language to Arabic
  - Try to open website module

Issue:

  Traceback raised.

Cause:

  When generating random sample data for website dashboard, it will use
  the current local to generate dates (in the given format), who in this
  case have a non-latin numbering system, and therefore will break when
  trying to parse field value.

Solution:

  Use `serializeDate` or `serializeDateTime` to format datetime (with
  `latn` as `numberingSystem`).

opw-2743243

closes odoo/odoo#88840

X-original-commit: 5597912ad65e0b98c498f95ba884b9581a737211
Signed-off-by: Nasreddin Boulif (bon) <bon@odoo.com>
Co-authored-by: Nasreddin Boulif (bon)<bon@odoo.com>

addons/web/static/src/views/helpers/sample_server.js

@@ -3,7 +3,7 @@
 import { groupBy as arrayGroupBy, sortBy as arraySortBy } from "@web/core/utils/arrays";
 import { registry } from "@web/core/registry";
 import { ORM } from "../../core/orm_service";
-import { parseDate } from "@web/core/l10n/dates";
+import { parseDate, serializeDate, serializeDateTime } from "@web/core/l10n/dates";
 
 class UnimplementedRouteError extends Error {}
 
@@ -236,10 +236,9 @@ export class SampleServer {
                 }
                 return false;
             case "date":
-            case "datetime": {
-                const format = field.type === "date" ? "yyyy-MM-dd" : "yyyy-MM-dd HH:mm:ss";
-                return this._getRandomDate(format);
-            }
+            case "datetime":
+                const datetime = this._getRandomDate();
+                return field.type === "date" ? serializeDate(datetime): serializeDateTime(datetime);
             case "float":
                 return this._getRandomFloat(SampleServer.MAX_FLOAT);
             case "integer": {
@@ -304,12 +303,11 @@ export class SampleServer {
 
     /**
      * @private
-     * @param {string} format
-     * @returns {moment}
+     * @returns {DateTime}
      */
-    _getRandomDate(format) {
+    _getRandomDate() {
         const delta = Math.floor((Math.random() - Math.random()) * SampleServer.DATE_DELTA);
-        return luxon.DateTime.local().plus({ hours: delta }).toFormat(format);
+        return luxon.DateTime.local().plus({ hours: delta });
     }
 
     /**