[pull] main from django:main

django/contrib/admin/widgets.py

@@ -122,6 +122,7 @@ class AdminRadioSelect(forms.RadioSelect):
 
 class AdminFileWidget(forms.ClearableFileInput):
     template_name = "admin/widgets/clearable_file_input.html"
+    use_fieldset = True
 
 
 def url_params_from_lookup_dict(lookups):

django/db/backends/postgresql/compiler.py

@@ -53,7 +53,9 @@ def assemble_as_sql(self, fields, value_rows):
             or any(any(hasattr(value, "as_sql") for value in row) for row in value_rows)
         ):
             return super().assemble_as_sql(fields, value_rows)
-        db_types = [field.db_type(self.connection) for field in fields]
+        # Manually remove parameters from `db_type` to ensure no data
+        # truncation takes place (e.g. varchar[] instead of varchar(50)[]).
+        db_types = [field.db_type(self.connection).split("(")[0] for field in fields]
         return InsertUnnest(["(%%s)::%s[]" % db_type for db_type in db_types]), [
             list(map(list, zip(*value_rows)))
         ]

django/forms/widgets.py

@@ -530,7 +530,7 @@ class ClearableFileInput(FileInput):
     input_text = _("Change")
     template_name = "django/forms/widgets/clearable_file_input.html"
     checked = False
-    use_fieldset = True
+    use_fieldset = False
 
     def clear_checkbox_name(self, name):
         """

docs/releases/5.2.10.txt

@@ -4,11 +4,15 @@ Django 5.2.10 release notes
 
 *Expected January 6, 2026*
 
-Django 5.2.10 fixes several bugs in 5.2.9.
+Django 5.2.10 fixes a data loss bug in Django 5.2 and one bug related to
+support for Python 3.14.
 
 Bugfixes
 ========
 
+* Fixed a bug in Django 5.2 where data exceeding ``max_length`` was silently
+  truncated by :meth:`.QuerySet.bulk_create` on PostgreSQL (:ticket:`33647`).
+
 * Fixed a bug where management command colorized help (introduced in
   Python 3.14) ignored the :option:`--no-color` option and the
   :envvar:`DJANGO_COLORS` setting (:ticket:`36376`).

docs/releases/6.0.1.txt

@@ -4,11 +4,14 @@ Django 6.0.1 release notes
 
 *Expected January 6, 2026*
 
-Django 6.0.1 fixes several bugs in 6.0.
+Django 6.0.1 fixes one data loss bug in Django 5.2 and several bugs in 6.0.
 
 Bugfixes
 ========
 
+* Fixed a bug in Django 5.2 where data exceeding ``max_length`` was silently
+  truncated by :meth:`.QuerySet.bulk_create` on PostgreSQL (:ticket:`33647`).
+
 * Fixed a regression in Django 6.0 where :ttag:`querystring` mishandled
   multi-value :class:`~django.http.QueryDict` keys, both by only preserving the
   last value and by incorrectly handling ``None`` values (:ticket:`36783`).
@@ -35,3 +38,7 @@ Bugfixes
 * Fixed a regression in Django 6.0 where :func:`~django.urls.path` routes
   defined using :func:`~django.utils.translation.gettext_lazy` failed to
   resolve correctly (:ticket:`36796`).
+
+* Fixed a regression in Django 6.0 where the :attr:`.Widget.use_fieldset`
+  attribute of :class:`~django.forms.ClearableFileInput` was flipped
+  from ``False`` to ``True`` (:ticket:`36829`).

tests/backends/postgresql/test_compilation.py

@@ -3,6 +3,7 @@
 
 from django.db import connection
 from django.db.models.expressions import RawSQL
+from django.db.utils import DataError
 from django.test import TestCase
 
 from ..models import Article, Reporter, Square
@@ -48,3 +49,12 @@ def test_unnest_eligible_foreign_keys(self):
         self.assertEqual(
             [article.reporter for article in articles], [reporter, reporter]
         )
+
+    def test_parametrized_db_type(self):
+        with self.assertRaises(DataError):
+            Reporter.objects.bulk_create(
+                [
+                    Reporter(),
+                    Reporter(first_name="a" * 31),
+                ]
+            )

tests/forms_tests/widget_tests/test_clearablefileinput.py

@@ -246,19 +246,18 @@ class TestForm(Form):
             )
 
         form = TestForm()
-        self.assertIs(self.widget.use_fieldset, True)
+        self.assertIs(self.widget.use_fieldset, False)
         self.assertHTMLEqual(
-            "<div><fieldset><legend>Field:</legend>"
-            '<input id="id_field" name="field" type="file" required></fieldset></div>'
-            "<div><fieldset><legend>With file:</legend>Currently: "
+            '<div><label for="id_field">Field:</label>'
+            '<input id="id_field" name="field" type="file" required></div>'
+            '<div><label for="id_with_file">With file:</label>Currently: '
             '<a href="something">something</a><br>Change:<input type="file" '
-            'name="with_file" id="id_with_file"></fieldset></div>'
-            "<div><fieldset><legend>Clearable file:</legend>"
+            'name="with_file" id="id_with_file"></div>'
+            '<div><label for="id_clearable_file">Clearable file:</label>'
             'Currently: <a href="something">something</a><input '
             'type="checkbox" name="clearable_file-clear" id="clearable_file-clear_id">'
             '<label for="clearable_file-clear_id">Clear</label><br>Change:'
-            '<input type="file" name="clearable_file" id="id_clearable_file">'
-            "</fieldset></div>",
+            '<input type="file" name="clearable_file" id="id_clearable_file"></div>',
             form.render(),
         )