Fixes boosts

bookwyrm/models/fields.py

@@ -42,7 +42,13 @@ class ActivitypubFieldMixin:
 
     def set_field_from_activity(self, instance, data):
         ''' helper function for assinging a value to the field '''
-        value = getattr(data, self.get_activitypub_field())
+        try:
+            value = getattr(data, self.get_activitypub_field())
+        except AttributeError:
+            # masssively hack-y workaround for boosts
+            if self.get_activitypub_field() != 'attributedTo':
+                raise
+            value = getattr(data, 'actor')
         formatted = self.field_from_activity(value)
         if formatted is None or formatted is MISSING:
             return

bookwyrm/models/status.py

@@ -218,6 +218,18 @@ class Boost(Status):
         activitypub_field='object',
     )
 
+    def __init__(self, *args, **kwargs):
+        ''' the user field is "actor" here instead of "attributedTo" '''
+        super().__init__(*args, **kwargs)
+
+        reserve_fields = ['user', 'boosted_status']
+        self.simple_fields = [f for f in self.simple_fields if \
+                f.name in reserve_fields]
+        self.activity_fields = self.simple_fields
+        self.many_to_many_fields = []
+        self.image_fields = []
+        self.deserialize_reverse_fields = []
+
     activity_serializer = activitypub.Boost
 
     # This constraint can't work as it would cross tables.