mirror of
https://github.com/bookwyrm-social/bookwyrm.git
synced 2024-09-27 14:00:21 +00:00
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
""" template filters """
|
|
from django import template
|
|
from django.db.models import Avg, StdDev, Count, F, Q
|
|
|
|
from bookwyrm import models
|
|
|
|
register = template.Library()
|
|
|
|
|
|
@register.simple_tag(takes_context=False)
|
|
def get_book_superlatives():
|
|
"""get book stats for the about page"""
|
|
total_ratings = models.Review.objects.filter(local=True, deleted=False).count()
|
|
data = {}
|
|
data["top_rated"] = (
|
|
models.Work.objects.annotate(
|
|
rating=Avg(
|
|
"editions__review__rating",
|
|
filter=Q(
|
|
editions__review__user__local=True, editions__review__deleted=False
|
|
),
|
|
),
|
|
rating_count=Count(
|
|
"editions__review",
|
|
filter=Q(
|
|
editions__review__user__local=True, editions__review__deleted=False
|
|
),
|
|
),
|
|
)
|
|
.annotate(weighted=F("rating") * F("rating_count") / total_ratings)
|
|
.filter(rating__gt=4, weighted__gt=0)
|
|
.order_by("-weighted")
|
|
.first()
|
|
)
|
|
|
|
data["controversial"] = (
|
|
models.Work.objects.annotate(
|
|
deviation=StdDev(
|
|
"editions__review__rating",
|
|
filter=Q(
|
|
editions__review__user__local=True, editions__review__deleted=False
|
|
),
|
|
),
|
|
rating_count=Count(
|
|
"editions__review",
|
|
filter=Q(
|
|
editions__review__user__local=True, editions__review__deleted=False
|
|
),
|
|
),
|
|
)
|
|
.annotate(weighted=F("deviation") * F("rating_count") / total_ratings)
|
|
.filter(weighted__gt=0)
|
|
.order_by("-weighted")
|
|
.first()
|
|
)
|
|
|
|
data["wanted"] = (
|
|
models.Work.objects.annotate(
|
|
shelf_count=Count(
|
|
"editions__shelves", filter=Q(editions__shelves__identifier="to-read")
|
|
)
|
|
)
|
|
.order_by("-shelf_count")
|
|
.first()
|
|
)
|
|
return data
|
|
|
|
|
|
@register.simple_tag(takes_context=False)
|
|
def get_landing_books():
|
|
"""list of books for the landing page"""
|
|
return list(
|
|
set(
|
|
models.Edition.objects.filter(
|
|
review__published_date__isnull=False,
|
|
review__deleted=False,
|
|
review__user__local=True,
|
|
review__privacy__in=["public", "unlisted"],
|
|
)
|
|
.exclude(cover__exact="")
|
|
.distinct()
|
|
.order_by("-review__published_date")[:6]
|
|
)
|
|
)
|