General code refactoring / cleanup.

django_apscheduler/admin.py

@@ -2,59 +2,69 @@
 
 from django.contrib import admin
 from django.db.models import Avg
+from django.utils.safestring import mark_safe
 from django.utils.timezone import now
 
 from django_apscheduler.models import DjangoJob, DjangoJobExecution
 from django_apscheduler import util
 
 
-def execute_now(ma, r, qs):
-    for item in qs:
-        item.next_run_time = now()
-        item.save()
-
-
-execute_now.short_description = "Force tasks to execute right now"
-
-
 @admin.register(DjangoJob)
 class DjangoJobAdmin(admin.ModelAdmin):
-    list_display = ["id", "name", "next_run_time_sec", "average_duration"]
-    actions = []
+    search_fields = ["name"]
+    list_display = ["id", "name", "next_run_time", "average_duration"]
 
     def get_queryset(self, request):
         self._durations = {
-            item[0]: item[1]
-            for item in DjangoJobExecution.objects.filter(
+            job: duration
+            for job, duration in DjangoJobExecution.objects.filter(
                 status=DjangoJobExecution.SUCCESS,
                 run_time__gte=now() - datetime.timedelta(days=2),
             )
             .values_list("job")
             .annotate(duration=Avg("duration"))
         }
-        return super(DjangoJobAdmin, self).get_queryset(request)
+        return super().get_queryset(request)
 
-    def next_run_time_sec(self, obj):
+    def next_run_time(self, obj):
         if obj.next_run_time is None:
             return "(paused)"
         return util.localize(obj.next_run_time)
 
     def average_duration(self, obj):
-        return self._durations.get(obj.id) or 0
+        return self._durations.get(obj.id, "None")
+
+    average_duration.short_description = "Average Duration (sec)"
 
 
 @admin.register(DjangoJobExecution)
 class DjangoJobExecutionAdmin(admin.ModelAdmin):
-    list_display = ["id", "job", "html_status", "run_time_sec", "duration"]
-
+    status_color_mapping = {
+        DjangoJobExecution.ADDED: "RoyalBlue",
+        DjangoJobExecution.SENT: "SkyBlue",
+        DjangoJobExecution.MAX_INSTANCES: "yellow",
+        DjangoJobExecution.MISSED: "yellow",
+        DjangoJobExecution.MODIFIED: "yellow",
+        DjangoJobExecution.REMOVED: "red",
+        DjangoJobExecution.ERROR: "red",
+        DjangoJobExecution.SUCCESS: "green",
+    }
+
+    list_display = ["id", "job", "html_status", "local_run_time", "duration_text"]
     list_filter = ["job__name", "run_time", "status"]
 
-    def run_time_sec(self, obj):
+    def html_status(self, obj):
+        return mark_safe(
+            f'<p style="color: {self.status_color_mapping[obj.status]}">{obj.status}</p>'
+        )
+
+    def local_run_time(self, obj):
         return util.localize(obj.run_time)
 
+    def duration_text(self, obj):
+        return obj.duration or "N/A"
+
     def get_queryset(self, request):
-        return (
-            super(DjangoJobExecutionAdmin, self)
-            .get_queryset(request)
-            .select_related("job")
-        )
+        return super().get_queryset(request).select_related("job")
+
+    html_status.short_description = "Status"

django_apscheduler/docs/changelog.md

@@ -6,13 +6,18 @@ This changelog is used to track all major changes to django_apscheduler.
 
 **Enhancements**
 
+- Drop support for Python 2.7, convert codebase to Python 3.6+.
 - CI: drop coverage for Python 2.7 and Django <= 2.1, which are no longer maintained upstream.
 - CI: add coverage for Python 3.7 and 3.8, as well as Django long term support (LTS) and the latest released versions.
 - CI: un-pin dependency on agronholm/apscheduler#149, which has since been merged and released upstream.
 - Rename Django `test_settings.py` file to prevent collision with actual test scripts.
 - Clean up unused dependencies / update dependencies to latest available versions.
 - Switch to Black code formatting.
-- Align package layout with official [Django recommendations](https://docs.djangoproject.com/en/dev/intro/reusable-apps/#packaging-your-app) 
+- Align package layout with official [Django recommendations](https://docs.djangoproject.com/en/dev/intro/reusable-apps/#packaging-your-app)
+- Move UI-related DjangoJobExecution.html_status out of model definition and in to the associated model admin definition.
+- Add `help_text` to model fields to document their use.
+- Remove unused code fragments.
+- Add Python type annotations.
 
 **Fixes**