Use edit date to track is status has been updated

bookwyrm/activitypub/note.py

@@ -35,6 +35,7 @@ class Note(ActivityObject):
     tag: List[Link] = field(default_factory=lambda: [])
     attachment: List[Document] = field(default_factory=lambda: [])
     sensitive: bool = False
+    updated: str = None
     type: str = "Note"
 
 

bookwyrm/migrations/0109_status_edited_date.py

@@ -1,6 +1,7 @@
-# Generated by Django 3.2.5 on 2021-10-15 00:28
+# Generated by Django 3.2.5 on 2021-10-15 15:54
 
-from django.db import migrations, models
+import bookwyrm.models.fields
+from django.db import migrations
 
 
 class Migration(migrations.Migration):
@@ -12,7 +13,7 @@ class Migration(migrations.Migration):
     operations = [
         migrations.AddField(
             model_name="status",
-            name="edited",
-            field=models.BooleanField(default=False),
+            name="edited_date",
+            field=bookwyrm.models.fields.DateTimeField(blank=True, null=True),
         ),
     ]

bookwyrm/models/status.py

@@ -43,7 +43,9 @@ class Status(OrderedCollectionPageMixin, BookWyrmModel):
     published_date = fields.DateTimeField(
         default=timezone.now, activitypub_field="published"
     )
-    edited = models.BooleanField(default=False)
+    edited_date = fields.DateTimeField(
+        blank=True, null=True, activitypub_field="updated"
+    )
     deleted = models.BooleanField(default=False)
     deleted_date = models.DateTimeField(blank=True, null=True)
     favorites = models.ManyToManyField(