Moves models that don't inherit Status to their own files

bookwyrm/models/favorite.py

@@ -0,0 +1,26 @@
+''' like/fav/star a status '''
+from django.db import models
+from django.utils import timezone
+
+from bookwyrm import activitypub
+from .base_model import ActivitypubMixin, BookWyrmModel
+from . import fields
+
+class Favorite(ActivitypubMixin, BookWyrmModel):
+    ''' fav'ing a post '''
+    user = fields.ForeignKey(
+        'User', on_delete=models.PROTECT, activitypub_field='actor')
+    status = fields.ForeignKey(
+        'Status', on_delete=models.PROTECT, activitypub_field='object')
+
+    activity_serializer = activitypub.Like
+
+    def save(self, *args, **kwargs):
+        ''' update user active time '''
+        self.user.last_active_date = timezone.now()
+        self.user.save()
+        super().save(*args, **kwargs)
+
+    class Meta:
+        ''' can't fav things twice '''
+        unique_together = ('user', 'status')