From c174520f949379d5aa6b911cdc8b932c0ce78808 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 12:09:08 +0000
Subject: [PATCH 1/2] Initial plan


From 8591ac82f4694a56a313f5b7f7c68afa981b872a Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 12:26:59 +0000
Subject: [PATCH 2/2] Preserve tree order for subpages in Wagtail admin

Agent-Logs-Url: https://github.com/scieloorg/core/sessions/60245919-af45-4a20-8038-2df89fa97dfe

Co-authored-by: robertatakenaka <505143+robertatakenaka@users.noreply.github.com>
---
 core/home/models.py | 13 +++++++++++++
 core/home/tests.py  | 20 ++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/core/home/models.py b/core/home/models.py
index 7befa852..0bbadd03 100755
--- a/core/home/models.py
+++ b/core/home/models.py
@@ -170,6 +170,12 @@ class HomePage(Page):
         "home.ListPageJournalByCategory",
     ]
 
+    # Show child pages in their tree (manual) order in the Wagtail admin
+    # listing, instead of by latest revision date. This keeps the order
+    # stable when an editor edits a subpage and matches what is shown on
+    # the public-facing site (which uses `get_children`, ordered by path).
+    admin_default_ordering = "ord"
+
     content_panels = Page.content_panels + [
         InlinePanel("sponsors", label=_("Footer Sponsors"), heading=_("Patrocinadores do Footer")),
     ]
@@ -352,6 +358,13 @@ class Meta:
 class AboutScieloOrgPage(Page):
     subpage_types = ["home.AboutScieloOrgPage"]
 
+    # Preserve the manual (tree) order of subpages in the Wagtail admin
+    # listing. Without this, Wagtail's default ``-latest_revision_created_at``
+    # ordering causes the most recently edited subpage to jump to the top
+    # of the list, breaking the predefined order (see issue: "Edição de
+    # páginas causa reordenamento dos itens").
+    admin_default_ordering = "ord"
+
     body = RichTextField(_("Body"), blank=True)
     external_link = models.URLField(
         _("Link externo"), blank=True, null=True, max_length=2000
diff --git a/core/home/tests.py b/core/home/tests.py
index 19b77133..5174c90f 100644
--- a/core/home/tests.py
+++ b/core/home/tests.py
@@ -6,9 +6,29 @@
 from core.users.models import User
 from journal.models import Journal, SciELOJournal
 
+from core.home.models import AboutScieloOrgPage, HomePage
 from core.home.views import _get_scielo_journals_data
 
 
+class TestSubpageAdminDefaultOrdering(TestCase):
+    """Regression tests for issue:
+    "Edição de páginas causa reordenamento dos itens".
+
+    Wagtail's default ``admin_default_ordering`` of
+    ``-latest_revision_created_at`` would cause a recently edited subpage
+    to jump to the top of the children listing in the admin, breaking
+    the predefined order. The fix sets ``admin_default_ordering = "ord"``
+    on the relevant page models so that children are always listed in
+    their tree (manual) order, matching the public-facing site.
+    """
+
+    def test_about_scielo_org_page_uses_tree_ordering_in_admin(self):
+        self.assertEqual(AboutScieloOrgPage.admin_default_ordering, "ord")
+
+    def test_home_page_uses_tree_ordering_in_admin(self):
+        self.assertEqual(HomePage.admin_default_ordering, "ord")
+
+
 class TestGetScieloJournalsData(TestCase):
     def setUp(self):
         self.user = User.objects.create(username="testuser", password="testpass")