[17.0][OU-FIX] website_sale: drop stale payment_footer template with its inherit closure

openupgrade_scripts/scripts/website_sale/17.0.1.1/post-zz-delete-stale-payment-footer.py

@@ -0,0 +1,47 @@
+from openupgradelib import openupgrade
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    """Drop the stale website_sale.payment_footer template.
+
+    Odoo 17 removed this template from website_sale (payment page redesign).
+    The end-of-pass obsolete-record cleanup deletes records one statement at
+    a time, so the FK ir_ui_view_inherit_id_fkey blocks it whenever a view
+    inheriting payment_footer is scheduled for deletion later in the same
+    pass, and the stale 16.0 markup survives into the 17.0 database. Any view
+    still inheriting the dead template (website COW copies included) is dead
+    data too, so delete the whole inherit closure in ONE statement — FK
+    checks run at statement end, making the closure delete atomic. Keyed on
+    the stable view key: idempotent, and immune to record-id drift between
+    dumps.
+    """
+    openupgrade.logged_query(
+        env.cr,
+        """
+        WITH RECURSIVE doomed(id) AS (
+            SELECT id FROM ir_ui_view
+             WHERE key = 'website_sale.payment_footer'
+            UNION
+            SELECT v.id FROM ir_ui_view v
+              JOIN doomed d ON v.inherit_id = d.id
+        )
+        DELETE FROM ir_model_data
+         WHERE model = 'ir.ui.view'
+           AND res_id IN (SELECT id FROM doomed)
+        """,
+    )
+    openupgrade.logged_query(
+        env.cr,
+        """
+        WITH RECURSIVE doomed(id) AS (
+            SELECT id FROM ir_ui_view
+             WHERE key = 'website_sale.payment_footer'
+            UNION
+            SELECT v.id FROM ir_ui_view v
+              JOIN doomed d ON v.inherit_id = d.id
+        )
+        DELETE FROM ir_ui_view
+         WHERE id IN (SELECT id FROM doomed)
+        """,
+    )