[OU-IMP] website: fix migrated snippets

Add missing data-vcss="001" and data-vxml="001" attributes
required by Odoo 18 on migrated snippets.

TT63052

Author: pilarvargas-tecnativa

openupgrade_scripts/scripts/website/18.0.1.0/post-migration.py

@@ -0,0 +1,65 @@
+# Copyright 2026 Tecnativa - Pilar Vargas
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from openupgradelib import openupgrade
+
+
+def migrate_s_carousel_snippets(env):
+    openupgrade.logged_query(
+        env.cr,
+        r"""
+        UPDATE ir_ui_view v
+           SET arch_db = data.arch_db
+          FROM (
+              SELECT view.id,
+                     jsonb_object_agg(
+                         lang,
+                         regexp_replace(
+                             arch,
+                             $$<section(?=[^>]*class="[^"]*s_carousel_wrapper[^"]*")(?![^>]*data-vcss=)([^>]*)>$$,
+                             $$<section\1 data-vcss="001">$$,
+                             'g'
+                         )
+                     ) AS arch_db
+                FROM ir_ui_view view
+                CROSS JOIN LATERAL jsonb_each_text(view.arch_db) AS value(lang, arch)
+               WHERE view.website_id IS NOT NULL
+                 AND view.arch_db::text LIKE '%s_carousel_wrapper%'
+               GROUP BY view.id
+          ) data
+         WHERE v.id = data.id
+        """,
+    )
+
+
+def migrate_s_three_columns_snippets(env):
+    openupgrade.logged_query(
+        env.cr,
+        r"""
+        UPDATE ir_ui_view v
+           SET arch_db = data.arch_db
+          FROM (
+              SELECT view.id,
+                     jsonb_object_agg(
+                         lang,
+                         regexp_replace(
+                             arch,
+                             $$<section(?=[^>]*class="[^"]*s_three_columns[^"]*")(?![^>]*data-vxml=)([^>]*)>$$,
+                             $$<section\1 data-vxml="001">$$,
+                             'g'
+                         )
+                     ) AS arch_db
+                FROM ir_ui_view view
+                CROSS JOIN LATERAL jsonb_each_text(view.arch_db) AS value(lang, arch)
+               WHERE view.website_id IS NOT NULL
+                 AND view.arch_db::text LIKE '%s_three_columns%'
+               GROUP BY view.id
+          ) data
+         WHERE v.id = data.id
+        """,
+    )
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    migrate_s_carousel_snippets(env)