CMS: Make landing page related link body optional (#3061)

* CMS: Make landing page related link body optional

* CMS: Update test and migration

---------

Co-authored-by: sahmed06 <58435820+sahmed06@users.noreply.github.com>

Author: tushortz

cms/home/migrations/0031_alter_landingpagerelatedlink_body.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.2.12 on 2026-03-13 10:59
+
+import wagtail.fields
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("home", "0030_alter_landingpage_body_date_prefix"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="landingpagerelatedlink",
+            name="body",
+            field=wagtail.fields.RichTextField(blank=True, null=True),
+        ),
+    ]

cms/home/models/landing_page.py

@@ -124,3 +124,4 @@ class LandingPageRelatedLink(UKHSAPageRelatedLink):
     page = ParentalKey(
         LandingPage, on_delete=models.SET_NULL, null=True, related_name="related_links"
     )
+    body = RichTextField(features=[], blank=True, null=True)

tests/unit/cms/home/test_models.py

@@ -4,6 +4,7 @@
 from wagtail.api.conf import APIField
 
 from cms.dashboard.models import UKHSAPage
+from cms.home.models.landing_page import LandingPageRelatedLink
 from tests.fakes.factories.cms.landing_page_factory import FakeLandingPageFactory
 
 
@@ -67,6 +68,19 @@ def test_has_correct_content_panels(
         # When / Then
         assert hasattr(blank_page, expected_content_panel)
 
+    def test_landing_page_related_link_body_is_optional(self) -> None:
+        """
+        Given the `LandingPageRelatedLink` model
+        When inspecting the `body` field
+        Then the field allows blank and null values
+        """
+        # Given / When
+        body_field = LandingPageRelatedLink._meta.get_field("body")
+
+        # Then
+        assert body_field.blank is True
+        assert body_field.null is True
+
     def test_is_previewable_returns_false(self):
         """
         Given a blank `LandingPage` model