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https://github.com/bookwyrm-social/bookwyrm.git
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Correct calls to annotated user set
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parent
03e5da12dd
commit
dda21195de
3 changed files with 26 additions and 15 deletions
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@ -1,5 +1,5 @@
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""" store recommended follows in redis """
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import math.floor
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import math
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from django.dispatch import receiver
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from django.db.models import signals, Q
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@ -41,17 +41,28 @@ class SuggestedUsers(RedisStore):
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)
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def get_stores_for_object(self, obj):
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return [self.store_id(u) for u in self.get_users_for_object(obj)]
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def get_users_for_object(self, obj): # pylint: disable=no-self-use
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""" given a user, who might want to follow them """
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return models.User.objects.filter(
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local=True,
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).exclude(user_following=obj)
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).exclude(following=obj)
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def rerank_obj(self, obj):
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""" update all the instances of this user with new ranks """
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stores = self.get_stores_for_object(obj)
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pipeline = r.pipeline()
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for store in stores:
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pipeline.zadd(store, self.get_value(obj), xx=True)
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for store_user in self.get_users_for_object(obj):
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annotated_user = get_annotated_users(
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store_user,
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id=obj.id,
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).first()
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pipeline.zadd(
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self.store_id(store_user),
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self.get_value(annotated_user),
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xx=True
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)
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pipeline.execute()
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def rerank_user_suggestions(self, user):
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@ -107,13 +118,13 @@ def add_or_remove_on_discoverability_change(
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sender, instance, created, raw, using, update_fields, **kwargs
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):
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""" make a user (un)discoverable """
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if not "discoverable" in update_fields:
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if not update_fields or not "discoverable" in update_fields:
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return
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if created:
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suggested_users.rerank_user_suggestions(instance)
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if instance.discoverable:
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suggested_users.add_object_to_related_stores(instance)
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suggested_users.rerank_obj(instance)
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elif not created and not instance.discoverable:
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suggested_users.remove_object_from_related_stores(instance)
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@ -46,5 +46,5 @@ class Directory(View):
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def post(self, request):
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""" join the directory """
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request.user.discoverable = True
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request.user.save()
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request.user.save(update_fields=["discoverable"])
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return redirect("directory")
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@ -207,27 +207,27 @@ def get_suggested_users(user):
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)
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def get_annotated_users(user, *args, **kwargs):
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def get_annotated_users(viewer, *args, **kwargs):
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""" Users, annotated with things they have in common """
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return (
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models.User.objects.filter(discoverable=True, is_active=True, *args, **kwargs)
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.exclude(Q(id__in=user.blocks.all()) | Q(blocks=user))
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.exclude(Q(id__in=viewer.blocks.all()) | Q(blocks=viewer))
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.annotate(
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mutuals=Count(
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"following",
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filter=Q(
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~Q(id=user.id),
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~Q(id__in=user.following.all()),
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following__in=user.following.all(),
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~Q(id=viewer.id),
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~Q(id__in=viewer.following.all()),
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following__in=viewer.following.all(),
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),
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distinct=True,
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),
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shared_books=Count(
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"shelfbook",
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filter=Q(
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~Q(id=user.id),
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~Q(id=viewer.id),
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shelfbook__book__parent_work__in=[
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s.book.parent_work for s in user.shelfbook_set.all()
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s.book.parent_work for s in viewer.shelfbook_set.all()
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],
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),
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distinct=True,
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