Add filtering persistence to order pagination in portal

Ensure the "filterby" parameter is retained across order pagination to maintain user-selected filters. Introduced `_prepare_sale_portal_rendering_values` and `fix_pager_filer` methods to handle filter propagation on pagination links.

deltatech_website_sale_status/controllers/portal.py

@@ -43,9 +43,40 @@ def _prepare_orders_domain(self, partner):
     @http.route()
     def portal_my_orders(self, page=1, date_begin=None, date_end=None, sortby=None, filterby=None, **kw):
         request.update_context(show_order_fiter=True)
+        if not filterby:
+            filterby = "all"
         result = super().portal_my_orders(
             page=page, date_begin=date_begin, date_end=date_end, sortby=sortby, filterby=filterby, **kw
         )
 
         result.qcontext["filterby"] = request.params.get("filterby", "all")
         return result
+
+    def _prepare_sale_portal_rendering_values(
+        self, page=1, date_begin=None, date_end=None, sortby=None, quotation_page=False, **kwargs
+    ):
+        filterby = kwargs.get("filterby", "all")
+        if not filterby:
+            filterby = "all"
+            kwargs["filterby"] = filterby
+
+        values = super()._prepare_sale_portal_rendering_values(
+            page=page, date_begin=date_begin, date_end=date_end, sortby=sortby, quotation_page=quotation_page, **kwargs
+        )
+
+        values["filterby"] = filterby
+        values["pager"] = self.fix_pager_filer(values["pager"], filterby)
+
+        return values
+
+    def fix_pager_filer(self, pager, filterby):
+        pager["page"]["url"] = pager["page"]["url"] + "&filterby=" + filterby
+        pager["page_first"]["url"] = pager["page_first"]["url"] + "&filterby=" + filterby
+        pager["page_start"]["url"] = pager["page_start"]["url"] + "&filterby=" + filterby
+        pager["page_previous"]["url"] = pager["page_previous"]["url"] + "&filterby=" + filterby
+        pager["page_next"]["url"] = pager["page_next"]["url"] + "&filterby=" + filterby
+        pager["page_end"]["url"] = pager["page_end"]["url"] + "&filterby=" + filterby
+        pager["page_last"]["url"] = pager["page_last"]["url"] + "&filterby=" + filterby
+        for page in pager["pages"]:
+            page["url"] = page["url"] + "&filterby=" + filterby
+        return pager