[IMP] openupgrade_scripts: Fix snippet

Author: etobella

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

@@ -0,0 +1,32 @@
+import logging
+
+from lxml import etree
+from openupgradelib import openupgrade
+
+_logger = logging.getLogger(__name__)
+
+
+@openupgrade.migrate()
+def migrate(env, cr):
+    views = env["ir.ui.view"].search(
+        [("arch_db", "like", "expr=\"//div[@id='snippet_custom']\"")]
+    )
+    for view in views:
+        try:
+            t_element = etree.fromstring(view.arch_db).xpath("//t")[0]
+            thumbnail_url = t_element.attrib["t-thumbnail"]
+            full_snippet_key = t_element.attrib["t-snippet"]
+            template_key, snippet_key = view.key.rsplit(".", 1)
+            view.write(
+                {
+                    "arch": f"""
+                    <data inherit_id="{template_key}">
+                        <xpath expr="//snippets[@id='snippet_custom']" position="inside">
+                            <t t-snippet="{full_snippet_key}" t-thumbnail="{thumbnail_url}"/>
+                        </xpath>
+                    </data>
+                """  # noqa: E501
+                }
+            )
+        except Exception as e:
+            _logger.error(f"View with id {view.id} cannot be transformed {e}")