[OU-FIX] website: Extract copyright information from existing website

Previous code was ignoring possible customizations on the copyright information,
as it took it from the master template. With this change, the information is
taken from the customized template if exists, or the master otherwise, using
the existing CoW mechanism for getting it in a simple way.

TT44254

openupgrade_scripts/scripts/website/15.0.1.0/post-migration.py

@@ -8,34 +8,39 @@ def extract_footer_copyright_company_name(env):
     content from previous versions if it has been customised, or directly put
     the company name if not customized (which is the previous value).
     """
-    main_copyright_view = env.ref("website.footer_copyright_company_name")
-    if not main_copyright_view:
-        return
-    main_copyright_arch = main_copyright_view.arch_db
-    main_copyright_pattern = r'<span class="o_footer_copyright_name mr-2">(.*?)<\/span>'
-    main_copyright_matches = re.findall(
-        main_copyright_pattern,
-        main_copyright_arch,
-        re.DOTALL,
-    )
     for website in env["website"].search([]):
-        view = env["ir.ui.view"].search(
-            [("key", "=", "website.layout"), ("website_id", "=", website.id)]
+        main_copyright_view = website.with_context(website_id=website.id).viewref(
+            "website.footer_copyright_company_name"
         )
-        website_layout_arch = view.arch_db or ""
-        website_layout_pattern = (
+        main_copyright_arch = main_copyright_view.arch_db
+        main_copyright_pattern = (
             r'<span class="o_footer_copyright_name mr-2">(.*?)<\/span>'
         )
-        website_layout_matches = re.findall(
-            website_layout_pattern, website_layout_arch, re.DOTALL
+        main_copyright_matches = re.findall(
+            main_copyright_pattern,
+            main_copyright_arch,
+            re.DOTALL,
         )
-        new_arch = main_copyright_arch.replace(
-            main_copyright_matches[0],
-            website_layout_matches
-            and website_layout_matches[0]
-            or f"Copyright © {website.company_id.name}",
-        )
-        main_copyright_view.with_context(website_id=website.id).arch_db = new_arch
+        if main_copyright_matches:
+            website_layout_view = website.with_context(website_id=website.id).viewref(
+                "website.layout"
+            )
+            website_layout_arch = website_layout_view.arch_db or ""
+            website_layout_pattern = (
+                r'<span class="o_footer_copyright_name mr-2">(.*?)<\/span>'
+            )
+            website_layout_matches = re.findall(
+                website_layout_pattern, website_layout_arch, re.DOTALL
+            )
+            new_arch = re.sub(
+                main_copyright_pattern,
+                website_layout_matches[0]
+                if website_layout_matches
+                else f'<span class="o_footer_copyright_name mr-2">'
+                f"Copyright © {website.company_id.name}</span>",
+                main_copyright_arch,
+            )
+            main_copyright_view.with_context(website_id=website.id).arch = new_arch
 
 
 def update_website_form_call(env):