def get_user_boosted(user, status):
"""did the given user fav a status?"""
return get_or_set(
f"boost-{user.id}-{status.id}",
lambda u: status.boosters.filter(user=u).exists(),
user,
timeout=259200,
)
def get_user_liked(user, status):
"""did the given user fav a status?"""
return get_or_set(
f"fav-{user.id}-{status.id}",
lambda u, s: models.Favorite.objects.filter(user=u, status=s).exists(),
user,
status,
timeout=259200,
)
def get_is_book_on_shelf(book, shelf):
"""is a book on a shelf"""
return cache.get_or_set(
f"book-on-shelf-{book.id}-{shelf.id}",
lambda b, s: s.books.filter(id=b.id).exists(),
book,
shelf,
timeout=15552000,
)
def get_relationship(context, user_object):
"""caches the relationship between the logged in user and another user"""
user = context["request"].user
return get_or_set(
f"relationship-{user.id}-{user_object.id}",
get_relationship_name,
user,
user_object,
timeout=259200,
)
def latest_read_through(book, user):
"""the most recent read activity"""
return cache.get_or_set(
f"latest_read_through-{user.id}-{book.id}",
lambda u, b: (models.ReadThrough.objects.filter(
user=u, book=b, is_active=True).order_by("-start_date").first()),
user,
book,
timeout=15552000,
)
def get_rating(book, user):
"""get the overall rating of a book"""
return cache.get_or_set(
f"book-rating-{book.parent_work.id}-{user.id}",
lambda u, b: models.Review.privacy_filter(u).filter(
book__parent_work__editions=b, rating__gt=0).aggregate(
Avg("rating"))["rating__avg"] or 0,
user,
book,
timeout=15552000,
)
def active_shelf(context, book):
"""check what shelf a user has a book on, if any"""
user = context["request"].user
return cache.get_or_set(
f"active_shelf-{user.id}-{book.id}",
lambda u, b: (models.ShelfBook.objects.filter(
shelf__user=u,
book__parent_work__editions=b,
).first() or False),
user,
book,
timeout=15552000,
) or {
"book": book
}
