Remove code for unsupported django.VERSION < (3, 2) (#729)

* Remove code for unsupported django.VERSION < (3, 2)

* pre-commit: Add django-upgrade

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -30,3 +30,9 @@ repos:
     rev: 5.13.2
     hooks:
       - id: isort
+
+  - repo: https://github.com/adamchainz/django-upgrade
+    rev: 1.16.0
+    hooks:
+      - id: django-upgrade
+        args: [--target-version, "3.2"]

django_celery_beat/__init__.py

@@ -5,8 +5,6 @@
 import re
 from collections import namedtuple
 
-import django
-
 __version__ = '2.5.0'
 __author__ = 'Asif Saif Uddin, Ask Solem'
 __contact__ = 'auvipy@gmail.com, ask@celeryproject.org'
@@ -29,6 +27,3 @@
 del re
 
 __all__ = []
-
-if django.VERSION < (3, 2):
-    default_app_config = 'django_celery_beat.apps.BeatConfig'

django_celery_beat/admin.py

@@ -105,6 +105,7 @@ def clean_kwargs(self):
         return self._clean_json('kwargs')
 
 
+@admin.register(PeriodicTask)
 class PeriodicTaskAdmin(admin.ModelAdmin):
     """Admin-interface for periodic tasks."""
 
@@ -184,30 +185,39 @@ def _message_user_about_update(self, request, rows_updated, verb):
             ),
         )
 
+    @admin.action(
+        description=_('Enable selected tasks')
+    )
     def enable_tasks(self, request, queryset):
         rows_updated = queryset.update(enabled=True)
         PeriodicTasks.update_changed()
         self._message_user_about_update(request, rows_updated, 'enabled')
-    enable_tasks.short_description = _('Enable selected tasks')
 
+    @admin.action(
+        description=_('Disable selected tasks')
+    )
     def disable_tasks(self, request, queryset):
         rows_updated = queryset.update(enabled=False, last_run_at=None)
         PeriodicTasks.update_changed()
         self._message_user_about_update(request, rows_updated, 'disabled')
-    disable_tasks.short_description = _('Disable selected tasks')
 
     def _toggle_tasks_activity(self, queryset):
         return queryset.update(enabled=Case(
             When(enabled=True, then=Value(False)),
             default=Value(True),
         ))
 
+    @admin.action(
+        description=_('Toggle activity of selected tasks')
+    )
     def toggle_tasks(self, request, queryset):
         rows_updated = self._toggle_tasks_activity(queryset)
         PeriodicTasks.update_changed()
         self._message_user_about_update(request, rows_updated, 'toggled')
-    toggle_tasks.short_description = _('Toggle activity of selected tasks')
 
+    @admin.action(
+        description=_('Run selected tasks')
+    )
     def run_tasks(self, request, queryset):
         self.celery_app.loader.import_default_modules()
         tasks = [(self.celery_app.tasks.get(task.task),
@@ -249,9 +259,9 @@ def run_tasks(self, request, queryset):
                 pluralize(tasks_run, _('was,were')),
             ),
         )
-    run_tasks.short_description = _('Run selected tasks')
 
 
+@admin.register(ClockedSchedule)
 class ClockedScheduleAdmin(admin.ModelAdmin):
     """Admin-interface for clocked schedules."""
 
@@ -263,14 +273,12 @@ class ClockedScheduleAdmin(admin.ModelAdmin):
     )
 
 
+@admin.register(CrontabSchedule)
 class CrontabScheduleAdmin(admin.ModelAdmin):
     """Admin class for CrontabSchedule."""
 
     list_display = ('__str__', 'human_readable')
 
 
 admin.site.register(IntervalSchedule)
-admin.site.register(CrontabSchedule, CrontabScheduleAdmin)
 admin.site.register(SolarSchedule)
-admin.site.register(ClockedSchedule, ClockedScheduleAdmin)
-admin.site.register(PeriodicTask, PeriodicTaskAdmin)