Add CustomEvent calendar feed

aleksis/core/migrations/0055_customevent.py

+# Generated by Django 4.2.5 on 2023-09-16 10:40
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0054_calendarevent_published"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CustomEvent",
+            fields=[
+                (
+                    "calendarevent_ptr",
+                    models.OneToOneField(
+                        auto_created=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        parent_link=True,
+                        primary_key=True,
+                        serialize=False,
+                        to="core.calendarevent",
+                    ),
+                ),
+                ("title", models.CharField(max_length=255, verbose_name="Title")),
+                ("description", models.TextField(blank=True, verbose_name="Description")),
+                ("groups", models.ManyToManyField(blank=True, related_name="+", to="core.group")),
+                ("persons", models.ManyToManyField(blank=True, related_name="+", to="core.person")),
+            ],
+            options={
+                "abstract": False,
+            },
+            bases=("core.calendarevent",),
+        ),
+    ]

aleksis/core/models.py

@@ -1778,3 +1778,35 @@ class Holiday(CalendarEvent):
     class Meta:
         verbose_name = _("Holiday")
         verbose_name_plural = _("Holidays")
+
+
+class CustomEvent(CalendarEvent):
+    name = "custom"
+    verbose_name = _("Additional events")
+
+    title = models.CharField(max_length=255, verbose_name=_("Title"))
+    description = models.TextField(verbose_name=_("Description"), blank=True)
+
+    persons = models.ManyToManyField(Person, related_name="+", blank=True)
+    groups = models.ManyToManyField(Group, related_name="+", blank=True)
+
+    @classmethod
+    def get_color(cls, request) -> str:
+        return get_site_preferences()["calendar__custom_event_color"]
+
+    @classmethod
+    def value_title(cls, reference_object: "CustomEvent", request) -> str:
+        """Return the title of the calendar event."""
+        return self.title
+
+    @classmethod
+    def value_description(cls, reference_object: "CustomEvent", request) -> str:
+        """Return the description of the calendar event."""
+        return self.description
+
+    @classmethod
+    def get_objects(cls, request, params=None) -> QuerySet:
+        qs = cls.objects.filter(
+            Q(persons=request.user.person) | Q(groups__members=request.user.person)
+        )
+        return qs

aleksis/core/preferences.py

@@ -504,6 +504,18 @@ class HolidayFeedColor(StringPreference):
     required = True
 
 
+@site_preferences_registry.register
+class CustomEventFeedColor(StringPreference):
+    """Color for the custom events calendar feed."""
+
+    section = calendar
+    name = "custom_event_color"
+    default = "#0d5eaf"
+    verbose_name = _("Custom events feed color")
+    widget = ColorWidget
+    required = True
+
+
 @person_preferences_registry.register
 class ActivatedCalendars(MultipleChoicePreference):
     """Calendars that are activated for a person."""