Fixed #36032 -- Rendered URLField values as links in the admin.

django/contrib/admin/utils.py

@@ -454,6 +454,8 @@ def display_for_field(value, field, empty_value_display, avoid_link=False):
         return formats.number_format(value)
     elif isinstance(field, models.FileField) and value and not avoid_link:
         return format_html('<a href="{}">{}</a>', value.url, value)
+    elif isinstance(field, models.URLField) and value and not avoid_link:
+        return format_html('<a href="{}">{}</a>', value, value)
     elif isinstance(field, models.JSONField) and value:
         try:
             return json.dumps(value, ensure_ascii=False, cls=field.encoder)

docs/releases/5.2.txt

@@ -80,6 +80,8 @@ Minor features
   :ref:`extrabody <extrabody>` for adding custom code before the closing
   ``</body>`` tag.
 
+* The value of a :class:`~django.db.models.URLField` now renders as a link.
+
 :mod:`django.contrib.admindocs`
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

tests/admin_changelist/admin.py

@@ -158,8 +158,8 @@ site.register(Parent, NoListDisplayLinksParentAdmin)
 
 
 class ListDisplayLinksGenreAdmin(admin.ModelAdmin):
-    list_display = ["name", "file"]
-    list_display_links = ["file"]
+    list_display = ["name", "file", "url"]
+    list_display_links = ["file", "url"]
 
 
 site.register(Genre, ListDisplayLinksGenreAdmin)

tests/admin_changelist/models.py

@@ -33,6 +33,7 @@ class GrandChild(models.Model):
 class Genre(models.Model):
     name = models.CharField(max_length=20)
     file = models.FileField(upload_to="documents/", blank=True, null=True)
+    url = models.URLField(blank=True, null=True)
 
 
 class Band(models.Model):

tests/admin_changelist/tests.py

@@ -1059,13 +1059,22 @@ class ChangeListTests(TestCase):
 
     def test_link_field_display_links(self):
         self.client.force_login(self.superuser)
-        g = Genre.objects.create(name="Blues", file="documents/blues_history.txt")
+        g = Genre.objects.create(
+            name="Blues",
+            file="documents/blues_history.txt",
+            url="http://blues_history.com",
+        )
         response = self.client.get(reverse("admin:admin_changelist_genre_changelist"))
         self.assertContains(
             response,
             '<a href="/admin/admin_changelist/genre/%s/change/">'
             "documents/blues_history.txt</a>" % g.pk,
         )
+        self.assertContains(
+            response,
+            '<a href="/admin/admin_changelist/genre/%s/change/">'
+            "http://blues_history.com</a>" % g.pk,
+        )
 
     def test_clear_all_filters_link(self):
         self.client.force_login(self.superuser)

tests/admin_utils/tests.py

@@ -157,6 +157,7 @@ class UtilsTests(SimpleTestCase):
             models.DateField(),
             models.DecimalField(),
             models.FloatField(),
+            models.URLField(),
             models.JSONField(),
             models.TimeField(),
         ]
@@ -196,6 +197,14 @@ class UtilsTests(SimpleTestCase):
                     display_value,
                 )
 
+    def test_url_display_for_field(self):
+        model_field = models.URLField()
+        display_value = display_for_field(
+            "http://example.com", model_field, self.empty_value
+        )
+        expected = '<a href="http://example.com">http://example.com</a>'
+        self.assertHTMLEqual(display_value, expected)
+
     def test_number_formats_display_for_field(self):
         display_value = display_for_field(
             12345.6789, models.FloatField(), self.empty_value