Adds model for instance admin announcements

bookwyrm/admin.py

@@ -2,7 +2,6 @@
 from django.contrib import admin
 from bookwyrm import models
 
-admin.site.register(models.SiteSettings)
 admin.site.register(models.User)
 admin.site.register(models.FederatedServer)
 admin.site.register(models.Connector)

bookwyrm/context_processors.py

@@ -4,4 +4,7 @@ from bookwyrm import models
 
 def site_settings(request):  # pylint: disable=unused-argument
     """include the custom info about the site"""
-    return {"site": models.SiteSettings.objects.get()}
+    return {
+        "site": models.SiteSettings.objects.get(),
+        "announcements": models.Announcement.active_announcements(),
+    }

bookwyrm/migrations/0075_announcement.py

@@ -0,0 +1,57 @@
+# Generated by Django 3.2 on 2021-05-19 20:58
+
+import bookwyrm.models.fields
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookwyrm", "0074_auto_20210511_1829"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Announcement",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created_date", models.DateTimeField(auto_now_add=True)),
+                ("updated_date", models.DateTimeField(auto_now=True)),
+                (
+                    "remote_id",
+                    bookwyrm.models.fields.RemoteIdField(
+                        max_length=255,
+                        null=True,
+                        validators=[bookwyrm.models.fields.validate_remote_id],
+                    ),
+                ),
+                ("name", models.CharField(max_length=255)),
+                ("preview", models.CharField(max_length=255)),
+                ("content", models.TextField()),
+                ("event_date", models.DateTimeField(blank=True, null=True)),
+                ("start_date", models.DateTimeField(blank=True, null=True)),
+                ("end_date", models.DateTimeField(blank=True, null=True)),
+                ("active", models.BooleanField(default=True)),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+    ]

bookwyrm/models/__init__.py

@@ -25,6 +25,7 @@ from .federated_server import FederatedServer
 from .import_job import ImportJob, ImportItem
 
 from .site import SiteSettings, SiteInvite, PasswordReset, InviteRequest
+from .announcement import Announcement
 
 cls_members = inspect.getmembers(sys.modules[__name__], inspect.isclass)
 activity_models = {

bookwyrm/models/announcement.py

@@ -0,0 +1,24 @@
+""" admin announcements """
+from django.db import models
+from django.utils import timezone
+
+from .base_model import BookWyrmModel
+
+
+class Announcement(BookWyrmModel):
+    """The admin has something to say"""
+
+    user = models.ForeignKey("User", on_delete=models.PROTECT)
+    name = models.CharField(max_length=255)
+    preview = models.CharField(max_length=255)
+    content = models.TextField()
+    event_date = models.DateTimeField(blank=True, null=True)
+    start_date = models.DateTimeField(blank=True, null=True)
+    end_date = models.DateTimeField(blank=True, null=True)
+    active = models.BooleanField(default=True)
+
+    @classmethod
+    def active_announcements(cls):
+        """announcements that should be displayed"""
+        now = timezone.now()
+        return cls.objects.filter(active=True, start_date__lte=now, end_date__gte=now)