From 9c122a4e5185dd4a0ae3500c35962aa983871422 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomek=20W=C3=B3jcik?= <labs@tomekwojcik.pl>
Date: Tue, 7 Dec 2021 19:24:55 +0100
Subject: [PATCH] Django 4.0 compat.

---
 django_changelist_inline/admin.py             |  3 ++
 .../admin/test_ChangelistInlineModelAdmin.py  |  4 ++
 tests/admin/test_InlineChangeList.py          | 46 +++++++++----------
 3 files changed, 28 insertions(+), 25 deletions(-)
 mode change 100755 => 100644 django_changelist_inline/admin.py

diff --git a/django_changelist_inline/admin.py b/django_changelist_inline/admin.py
old mode 100755
new mode 100644
index 6c9cbd8..520e011
--- a/django_changelist_inline/admin.py
+++ b/django_changelist_inline/admin.py
@@ -38,6 +38,9 @@ class ChangelistInlineModelAdmin(admin.ModelAdmin):
         self.sortable_by = ()
         self.show_full_result_count = False
 
+        if hasattr(self, 'search_help_text') is True:
+            self.search_help_text = None
+
     def get_actions(self, request):
         return []
 
diff --git a/tests/admin/test_ChangelistInlineModelAdmin.py b/tests/admin/test_ChangelistInlineModelAdmin.py
index 054e412..32d68c1 100644
--- a/tests/admin/test_ChangelistInlineModelAdmin.py
+++ b/tests/admin/test_ChangelistInlineModelAdmin.py
@@ -30,6 +30,10 @@ class ChangelistInlineModelAdminTestCase(TestCase):
         self.assertIsNone(model_admin.date_hierarchy)
         self.assertEqual(model_admin.sortable_by, ())
 
+        # Account for `search_help_text` attr added in Django 4.0
+        if hasattr(model_admin, 'search_help_text'):
+            self.assertIsNone(model_admin.search_help_text)
+
     @mock.patch('django.contrib.admin.ModelAdmin.get_actions')
     def test_get_actions(self, mock_get_actions):
         # Given
diff --git a/tests/admin/test_InlineChangeList.py b/tests/admin/test_InlineChangeList.py
index 9be4a3b..1627e3b 100644
--- a/tests/admin/test_InlineChangeList.py
+++ b/tests/admin/test_InlineChangeList.py
@@ -1,6 +1,8 @@
 # -*- coding: utf-8 -*-
+from distutils.version import StrictVersion
 from unittest import mock
 
+import django
 from django.contrib import admin
 from django.contrib.auth.models import User
 from django.http import HttpRequest
@@ -33,12 +35,21 @@ class InlineChangeListTestCase(TestCase):
             thing, RelatedThing, admin.site,
         )
 
-    def test_init(self):
-        # When
-        change_list = InlineChangeList(
+    def _get_change_list_args(self):
+        result = [
             self.fake_request, Thing, ['pk'], ['pk'], [], None, None, None, 5,
             5, None, self.model_admin, None,
-        )
+        ]
+
+        django_version = StrictVersion(django.__version__)
+        if django_version.version[0] >= 4:
+            result.append(None)  # Account for the new `search_help_text` arg
+
+        return result
+
+    def test_init(self):
+        # When
+        change_list = InlineChangeList(*self._get_change_list_args())
 
         # Then
         self.assertIsNone(change_list.formset)
@@ -51,11 +62,8 @@ class InlineChangeListTestCase(TestCase):
         self.assertIsNone(change_list.toolbar_links)
 
     def test_get_filters_params(self):
-        # Give
-        change_list = InlineChangeList(
-            self.fake_request, Thing, ['pk'], ['pk'], [], None, None, None, 5,
-            5, None, self.model_admin, None,
-        )
+        # Given
+        change_list = InlineChangeList(*self._get_change_list_args())
 
         # When
         result = change_list.get_filters_params(params={'q': 'spam'})
@@ -65,10 +73,7 @@ class InlineChangeListTestCase(TestCase):
 
     def test_has_toolbar_False(self):
         # Given
-        change_list = InlineChangeList(
-            self.fake_request, Thing, ['pk'], ['pk'], [], None, None, None, 5,
-            5, None, self.model_admin, None,
-        )
+        change_list = InlineChangeList(*self._get_change_list_args())
         change_list.add_url = None
         change_list.show_all_url = None
         change_list.toolbar_links = None
@@ -78,10 +83,7 @@ class InlineChangeListTestCase(TestCase):
 
     def test_has_toolbar_True_with_add_url(self):
         # Given
-        change_list = InlineChangeList(
-            self.fake_request, Thing, ['pk'], ['pk'], [], None, None, None, 5,
-            5, None, self.model_admin, None,
-        )
+        change_list = InlineChangeList(*self._get_change_list_args())
         change_list.add_url = 'add_url'
         change_list.show_all_url = None
         change_list.toolbar_links = None
@@ -91,10 +93,7 @@ class InlineChangeListTestCase(TestCase):
 
     def test_has_toolbar_True_with_show_all_url(self):
         # Given
-        change_list = InlineChangeList(
-            self.fake_request, Thing, ['pk'], ['pk'], [], None, None, None, 5,
-            5, None, self.model_admin, None,
-        )
+        change_list = InlineChangeList(*self._get_change_list_args())
         change_list.add_url = None
         change_list.show_all_url = 'show_all_url'
         change_list.toolbar_links = None
@@ -104,10 +103,7 @@ class InlineChangeListTestCase(TestCase):
 
     def test_has_toolbar_True_with_toolbar_links(self):
         # Given
-        change_list = InlineChangeList(
-            self.fake_request, Thing, ['pk'], ['pk'], [], None, None, None, 5,
-            5, None, self.model_admin, None,
-        )
+        change_list = InlineChangeList(*self._get_change_list_args())
         change_list.add_url = None
         change_list.show_all_url = None
         change_list.toolbar_links = 'toolbar_links'