Fixed compatibility with Django >= 3.0 and Wagtail >= 2.7, and extended test suite.

.travis.yml

 language: python
-cache: pip
-dist: trusty
+dist: xenial
+
+
+cache:
+  pip: true
+  directories:
+    - $HOME/.cache/pip
+    - $HOME/virtualenv
 
 env:
   global:
     - DJANGO_SETTINGS_MODULE="tests.app.settings"
 
-
-matrix:
-  include:
-    - env: TOXENV=py35-dj20-wt24
-      python: 3.5
-    - env: TOXENV=py35-dj21-wt24
-      python: 3.5
-    - env: TOXENV=py36-dj20-wt24
-      python: 3.6
-    - env: TOXENV=py36-dj21-wt24
-      python: 3.6
-    - env: TOXENV=py35-dj20-wt25
-      python: 3.5
-    - env: TOXENV=py35-dj21-wt25
-      python: 3.5
-    - env: TOXENV=py36-dj20-wt25
-      python: 3.6
-    - env: TOXENV=py36-dj21-wt25
-      python: 3.6
-    # - env: TOXENV=py36-dj22-wt25
-      # python: 3.6
-    - env: TOXENV='flake8,isort'
-      python: 3.5
+python:
+  - "3.5"
+  - "3.6"
+  - "3.7"
+  - "3.8"
 
 before_install:
-    - sudo add-apt-repository ppa:mc3man/trusty-media -y
+    - sudo add-apt-repository ppa:mc3man/xerus-media -y
     - sudo apt-get update -qq
     # The install of ffmpeg fails at random with 'There were unauthenticated packages' 🤷‍♂️
     - sudo apt-get install ffmpeg --allow-unauthenticated -y
 
 install:
-  - pip install --upgrade pip wheel tox
+  - pip install --upgrade pip wheel tox-travis
 
-cache:
-  directories:
-    - $HOME/.cache/pip
-    - $HOME/virtualenv
 
 script:
   - tox

setup.py

@@ -20,7 +20,7 @@ setup(
     install_requires=[
         'wagtail>=2.4',
         'Django>=1.11',
-        'django-enumchoicefield==1.1.0',
+        'django-enumchoicefield>=1.1.0',
     ],
     extras_require={
         'testing': [

tests/storage.py

 import errno
 import os
 from datetime import datetime
+from urllib.parse import urljoin
 
 from django.conf import settings
 from django.core.files import File, locks
@@ -10,7 +11,6 @@ from django.utils import timezone
 from django.utils._os import safe_join
 from django.utils.deconstruct import deconstructible
 from django.utils.encoding import filepath_to_uri, force_text
-from django.utils.six.moves.urllib.parse import urljoin
 
 
 @deconstructible

tox.ini

@@ -2,11 +2,24 @@
 skip_missing_interpreters = True
 
 envlist =
-	py{35,36,37}-dj{20,21}-wt24
-	py{35,36,37}-dj{20,21,22}-wt25
+	py{35,36,37,38}-dj{20,21}-wt24
+	py{35,36,37,38}-dj{20,21,22}-wt25
+	py{35,36,37,38}-dj{20,21,22}-wt26
+	py{35,36,37,38}-dj{20,21,22}-wt27
+	py{35,36,37,38}-dj{20,21,22}-wt28
+	py{36,37,38}-dj{30}-wt27
+	py{36,37,38}-dj{30}-wt28
+
 	# Enforce good style
 	flake8,isort
 
+[travis]
+python =
+  3.5: py35, flake8, isort
+  3.6: py36
+  3.7: py37
+  3.8: py38
+
 [base]
 deps = mock
 
@@ -19,8 +32,12 @@ deps =
 	dj20: Django~=2.0.0
 	dj21: Django~=2.1.0
 	dj22: Django~=2.2.0
+	dj30: Django~=3.0.0
 	wt24: wagtail~=2.4.0
 	wt25: wagtail~=2.5.0
+	wt26: wagtail~=2.6.0
+	wt27: wagtail~=2.7.0
+	wt28: wagtail~=2.8.0
 
 [testenv:flake8]
 deps = flake8

wagtailvideos/models.py

@@ -8,6 +8,7 @@ import tempfile
 import threading
 from contextlib import contextmanager
 
+import wagtail
 from django.conf import settings
 from django.core.exceptions import SuspiciousFileOperation
 from django.core.files.base import ContentFile
@@ -17,18 +18,22 @@ from django.db.models.signals import post_save, pre_delete
 from django.dispatch.dispatcher import receiver
 from django.forms.utils import flatatt
 from django.urls import reverse
-from django.utils.encoding import python_2_unicode_compatible
 from django.utils.html import mark_safe
 from django.utils.translation import ugettext_lazy as _
 from enumchoicefield import ChoiceEnum, EnumChoiceField
+from six import python_2_unicode_compatible
 from taggit.managers import TaggableManager
-from wagtail.admin.utils import get_object_usage
 from wagtail.core.models import CollectionMember
 from wagtail.search import index
 from wagtail.search.queryset import SearchableQuerySetMixin
 
 from wagtailvideos import ffmpeg
 
+if wagtail.__version__ >= '2.7':
+    from wagtail.admin.models import get_object_usage
+else:
+    from wagtail.admin.utils import get_object_usage
+
 logger = logging.getLogger(__name__)
 
 

wagtailvideos/templates/wagtailvideos/multiple/add.html

 {% extends "wagtailadmin/base.html" %}
-{% load i18n staticfiles %}
+{% load i18n static %}
 {% block titletag %}{% trans "Add multiple videos" %}{% endblock %}
 {% block extra_css %}
     {{ block.super }}

wagtailvideos/templates/wagtailvideos/videos/edit.html

 {% extends "wagtailadmin/base.html" %}
 
-{% load staticfiles wagtailadmin_tags i18n wagtailvideos_tags %}
+{% load static wagtailadmin_tags i18n wagtailvideos_tags %}
 
 {% block titletag %}{% blocktrans with title=video.title %}Editing video {{ title }}{% endblocktrans %}{% endblock %}
 

wagtailvideos/views/chooser.py

+import wagtail
 from django.core.paginator import Paginator
 from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 from wagtail.admin.forms.search import SearchForm
 from wagtail.admin.modal_workflow import render_modal_workflow
-from wagtail.admin.utils import PermissionPolicyChecker, popular_tags_for_model
 from wagtail.core.models import Collection
 from wagtail.images.views.chooser import get_chooser_js_data
 from wagtail.search import index as search_index
@@ -12,6 +12,12 @@ from wagtailvideos.forms import get_video_form
 from wagtailvideos.models import Video
 from wagtailvideos.permissions import permission_policy
 
+if wagtail.__version__ >= '2.7':
+    from wagtail.admin.models import popular_tags_for_model
+    from wagtail.admin.auth import PermissionPolicyChecker
+else:
+    from wagtail.admin.utils import PermissionPolicyChecker, popular_tags_for_model
+
 permission_checker = PermissionPolicyChecker(permission_policy)
 
 

wagtailvideos/views/multiple.py

+import wagtail
 from django.http import HttpResponseBadRequest, JsonResponse
 from django.shortcuts import get_object_or_404, render
 from django.template.loader import render_to_string
 from django.utils.encoding import force_text
 from django.views.decorators.http import require_POST
 from django.views.decorators.vary import vary_on_headers
-from wagtail.admin.utils import PermissionPolicyChecker
 from wagtail.search.backends import get_search_backends
 
 from wagtailvideos.forms import get_video_form
 from wagtailvideos.models import Video
 from wagtailvideos.permissions import permission_policy
 
+if wagtail.__version__ >= '2.7':
+    from wagtail.admin.auth import PermissionPolicyChecker
+else:
+    from wagtail.admin.utils import PermissionPolicyChecker
+
 permission_checker = PermissionPolicyChecker(permission_policy)
 
 

wagtailvideos/views/videos.py

+import wagtail
 from django.core.paginator import Paginator
 from django.http import HttpResponseNotAllowed
 from django.shortcuts import get_object_or_404, redirect, render
@@ -6,7 +7,6 @@ from django.utils.translation import ugettext as _
 from django.views.decorators.vary import vary_on_headers
 from wagtail.admin import messages
 from wagtail.admin.forms.search import SearchForm
-from wagtail.admin.utils import PermissionPolicyChecker, popular_tags_for_model
 from wagtail.core.models import Collection
 from wagtail.search.backends import get_search_backends
 
@@ -15,6 +15,12 @@ from wagtailvideos.forms import VideoTranscodeAdminForm, get_video_form
 from wagtailvideos.models import Video
 from wagtailvideos.permissions import permission_policy
 
+if wagtail.__version__ >= '2.7':
+    from wagtail.admin.models import popular_tags_for_model
+    from wagtail.admin.auth import PermissionPolicyChecker
+else:
+    from wagtail.admin.utils import PermissionPolicyChecker, popular_tags_for_model
+
 permission_checker = PermissionPolicyChecker(permission_policy)