Add Django 3.1 support

.travis.yml

@@ -1,7 +1,6 @@
 language: python
 
 dist: xenial
-sudo: false
 
 matrix:
   include:
@@ -13,29 +12,33 @@ matrix:
       env: TOX_ENV='docs'
     - python: 3.6
       env: TOX_ENV='frontend'
-    # Django 1.11
-    - python: 3.4
-      env: DJANGO='dj111' SWAP='noswap'
+    # Django 2.2
     - python: 3.5
-      env: DJANGO='dj111' SWAP='noswap'
-    - python: 3.6
-      env: DJANGO='dj111' SWAP='noswap'
+      env: DJANGO='dj22' SWAP='swap'
     - python: 3.6
-      env: DJANGO='dj111' SWAP='swap'
-    # Django 2.2
-    - python: 3.7
       env: DJANGO='dj22' SWAP='noswap'
-    - python: 3.8
-      env: DJANGO='dj22' SWAP='swap'
-    # Django 3.0
     - python: 3.7
-      env: DJANGO='dj30' SWAP='noswap'
+      env: DJANGO='dj22' SWAP='swap'
     - python: 3.8
+      env: DJANGO='dj22' SWAP='noswap'
+    # Django 3.0, always run the lowest supported version
+    - python: 3.6
       env: DJANGO='dj30' SWAP='swap'
+    - python: 3.6
+      env: DJANGO='dj30' SWAP='noswap'
+    # Django 3.1, always run the lowest supported version
+    - python: 3.6
+      env: DJANGO='dj31' SWAP='swap'
+    - python: 3.6
+      env: DJANGO='dj31' SWAP='noswap'
+  allow_failures:
+    - python: 3.6
+      env: DJANGO='dj31' SWAP='swap'
+    - python: 3.6
+      env: DJANGO='dj31' SWAP='noswap'
 
 install:
   - pip install coverage isort tox
-  - "if [[ $TRAVIS_PYTHON_VERSION == '3.4' ]]; then export PY_VER=py34; fi"
   - "if [[ $TRAVIS_PYTHON_VERSION == '3.5' ]]; then export PY_VER=py35; fi"
   - "if [[ $TRAVIS_PYTHON_VERSION == '3.6' ]]; then export PY_VER=py36; fi"
   - "if [[ $TRAVIS_PYTHON_VERSION == '3.7' ]]; then export PY_VER=py37; fi"
@@ -44,6 +47,7 @@ install:
 
 before_script:
   - if [ $TOX_ENV == 'frontend' ]; then
+    pip install -r tests/requirements/frontend.txt;
     nvm install 0.12.7 && nvm use 0.12.7;
     npm config set spin false;
     npm install -g npm@2;

CHANGELOG.rst

@@ -2,9 +2,13 @@
 CHANGELOG
 =========
 
-Next Version
-============
 
+2.0.0 (unreleased)
+==================
+
+* Added support for Django 3.1
+* Dropped support for Python 2.7 and Python 3.4
+* Dropped support for Django < 2.2
 * Changed the preferred way to do model registration via model inheritance
   and ``mptt.AlreadyRegistered``, which is deprecated since django-mptt 0.4
 

MANIFEST.in

@@ -1,4 +1,4 @@
-include LICENSE.txt
+include LICENSE
 include README.rst
 recursive-include filer/locale *
 recursive-include filer/static *

README.rst

@@ -51,7 +51,7 @@ for all the details on how to install, configure and use django-filer.
 .. |coverage| image:: https://codecov.io/gh/divio/django-filer/branch/master/graph/badge.svg
     :target: https://codecov.io/gh/divio/django-filer
 
-.. |python| image:: https://img.shields.io/badge/python-2.7%20%7C%203.4+-blue.svg
+.. |python| image:: https://img.shields.io/badge/python-3.5+-blue.svg
     :target: https://pypi.org/project/django-filer/
-.. |django| image:: https://img.shields.io/badge/django-1.11%20%7C%202.1%20%7C%202.2-blue.svg
+.. |django| image:: https://img.shields.io/badge/django-2.2,%203.0,%203.1-blue.svg
     :target: https://www.djangoproject.com/

aldryn_config.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from aldryn_client import forms
 
 

docs/conf.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 #
 # django-filer documentation build configuration file, created by
 # sphinx-quickstart on Tue Nov 16 22:05:55 2010.
@@ -11,12 +10,13 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import sys, os
-sys.path.append(os.path.abspath('../'))
 import datetime
+import os
+import sys
 
-from filer import __version__
+sys.path.append(os.path.abspath('../'))
 
+from filer import __version__
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the

docs/installation.rst

@@ -14,7 +14,7 @@ The easiest way to get ``django-filer`` is simply install it with `pip`_::
 Dependencies
 ------------
 
-* `Django`_ >= 1.11
+* `Django`_ >= 2.2
 * `django-mptt`_ >=0.6
 * `easy_thumbnails`_ >= 2.0
 * `django-polymorphic`_ >= 0.7
@@ -28,9 +28,9 @@ check `Pillow doc`_.
 
 `django-polymorphic`_ version depends on `Django`_ version:
 
-* for `Django`_ >=1.8,<1.11 use `django-polymorphic`_ 1.3.1
-* for `Django`_ >=1.11 use `django-polymorphic`_ >=2.0
+* for `Django`_ >=2.2 use `django-polymorphic`_ >=2.0
 * for `Django`_ >=3.0 use `django-polymorphic`_ >=2.1
+* for `Django`_ >=3.1 use `django-polymorphic`_ >=3.0
 
 Configuration
 -------------

filer/__init__.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 """
 See PEP 386 (https://www.python.org/dev/peps/pep-0386/)
 

filer/admin/__init__.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.contrib import admin
 
 from ..models import Clipboard, File, Folder, FolderPermission, ThumbnailOption

filer/admin/clipboardadmin.py

@@ -1,10 +1,7 @@
-# -*- coding: utf-8 -*-
-from __future__ import absolute_import
-
-from django.conf.urls import url
 from django.contrib import admin
 from django.forms.models import modelform_factory
 from django.http import JsonResponse
+from django.urls import re_path
 from django.views.decorators.csrf import csrf_exempt
 
 from .. import settings as filer_settings
@@ -40,22 +37,22 @@ class ClipboardAdmin(admin.ModelAdmin):
 
     def get_urls(self):
         return [
-            url(r'^operations/paste_clipboard_to_folder/$',
-                self.admin_site.admin_view(views.paste_clipboard_to_folder),
-                name='filer-paste_clipboard_to_folder'),
-            url(r'^operations/discard_clipboard/$',
-                self.admin_site.admin_view(views.discard_clipboard),
-                name='filer-discard_clipboard'),
-            url(r'^operations/delete_clipboard/$',
-                self.admin_site.admin_view(views.delete_clipboard),
-                name='filer-delete_clipboard'),
-            url(r'^operations/upload/(?P<folder_id>[0-9]+)/$',
-                ajax_upload,
-                name='filer-ajax_upload'),
-            url(r'^operations/upload/no_folder/$',
-                ajax_upload,
-                name='filer-ajax_upload'),
-        ] + super(ClipboardAdmin, self).get_urls()
+            re_path(r'^operations/paste_clipboard_to_folder/$',
+                    self.admin_site.admin_view(views.paste_clipboard_to_folder),
+                    name='filer-paste_clipboard_to_folder'),
+            re_path(r'^operations/discard_clipboard/$',
+                    self.admin_site.admin_view(views.discard_clipboard),
+                    name='filer-discard_clipboard'),
+            re_path(r'^operations/delete_clipboard/$',
+                    self.admin_site.admin_view(views.delete_clipboard),
+                    name='filer-delete_clipboard'),
+            re_path(r'^operations/upload/(?P<folder_id>[0-9]+)/$',
+                    ajax_upload,
+                    name='filer-ajax_upload'),
+            re_path(r'^operations/upload/no_folder/$',
+                    ajax_upload,
+                    name='filer-ajax_upload'),
+        ] + super().get_urls()
 
     def get_model_perms(self, *args, **kwargs):
         """

filer/admin/fileadmin.py

@@ -1,12 +1,9 @@
-# -*- coding: utf-8 -*-
-from __future__ import absolute_import
-
 from django import forms
 from django.contrib.admin.utils import unquote
 from django.http import HttpResponseRedirect
 from django.urls import reverse
 from django.utils.safestring import mark_safe
-from django.utils.translation import ugettext as _
+from django.utils.translation import gettext as _
 
 from .. import settings
 from ..models import File
@@ -15,7 +12,7 @@
 
 
 class FileAdminChangeFrom(forms.ModelForm):
-    class Meta(object):
+    class Meta:
         model = File
         exclude = ()
 
@@ -82,7 +79,7 @@ def response_change(self, request, obj):
                 admin_url_params_encoded(request),
             )
             return HttpResponseRedirect(url)
-        return super(FileAdmin, self).response_change(request, obj)
+        return super().response_change(request, obj)
 
     def render_change_form(self, request, context, add=False, change=False,
                            form_url='', obj=None):
@@ -92,7 +89,7 @@ def render_change_form(self, request, context, add=False, change=False,
                          'is_popup': popup_status(request),
                          'filer_admin_context': AdminContext(request)}
         context.update(extra_context)
-        return super(FileAdmin, self).render_change_form(
+        return super().render_change_form(
             request=request, context=context, add=add, change=change,
             form_url=form_url, obj=obj)
 
@@ -113,7 +110,7 @@ def delete_view(self, request, object_id, extra_context=None):
 
         if request.POST:
             # Return to folder listing, since there is no usable file listing.
-            super(FileAdmin, self).delete_view(
+            super().delete_view(
                 request=request, object_id=object_id,
                 extra_context=extra_context)
             if parent_folder:
@@ -127,7 +124,7 @@ def delete_view(self, request, object_id, extra_context=None):
             )
             return HttpResponseRedirect(url)
 
-        return super(FileAdmin, self).delete_view(
+        return super().delete_view(
             request=request, object_id=object_id,
             extra_context=extra_context)