mirror of
https://github.com/bookwyrm-social/bookwyrm.git
synced 2024-06-24 07:50:39 +00:00
95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
from datetime import date
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from django.db.models import Case, When, Avg, Sum
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from django.http import Http404
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from django.shortcuts import get_object_or_404
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from django.template.response import TemplateResponse
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from django.views import View
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from bookwyrm import models
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# December day of first availability
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FIRST_DAY = 15
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def is_year_available(year):
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"""return boolean"""
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today = date.today()
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year = int(year)
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if year < today.year:
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return True
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if year == today.year and today >= date(today.year, 12, FIRST_DAY):
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return True
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return False
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class AnnualSummary(View):
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"""display a summary of the year for the current user"""
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def get(self, request, year):
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"""get response"""
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if not is_year_available(year):
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raise Http404(f"The summary for {year} is unavailable")
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user = request.user
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read_shelf = get_object_or_404(user.shelf_set, identifier="read")
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read_book_ids_in_year = (
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models.ShelfBook.objects.filter(shelf=read_shelf)
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.filter(user=user)
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.filter(shelved_date__year=year)
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.order_by("shelved_date", "created_date", "updated_date")
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.values_list("book", flat=True)
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)
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read_shelf_order = Case(
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*[When(pk=pk, then=pos) for pos, pk in enumerate(read_book_ids_in_year)]
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)
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read_books_in_year = models.Edition.objects.filter(
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id__in=read_book_ids_in_year
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).order_by(read_shelf_order)
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"""pages stats queries"""
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page_stats = read_books_in_year.aggregate(Sum("pages"), Avg("pages"))
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book_list_by_pages = read_books_in_year.filter(pages__gte=0).order_by("pages")
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book_pages_lowest = book_list_by_pages.first()
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book_pages_highest = book_list_by_pages.last()
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"""books with no pages"""
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no_page_list = len(read_books_in_year.filter(pages__exact=None))
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"""rating stats queries"""
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ratings = (
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models.Review.objects.filter(user=user)
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.exclude(deleted=True)
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.exclude(rating=None)
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.filter(book_id__in=read_book_ids_in_year)
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)
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best_ratings_books_ids = [review.book.id for review in ratings.filter(rating=5)]
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ratings_stats = ratings.aggregate(Avg("rating"))
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paginated_years = (
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int(year) - 1,
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int(year) + 1 if is_year_available(int(year) + 1) else None
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)
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data = {
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"year": year,
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"books_total": len(read_books_in_year),
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"books": read_books_in_year,
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"pages_total": page_stats["pages__sum"],
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"pages_average": page_stats["pages__avg"],
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"book_pages_lowest": book_pages_lowest,
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"book_pages_highest": book_pages_highest,
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"no_page_number": no_page_list,
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"ratings_total": len(ratings),
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"rating_average": ratings_stats["rating__avg"],
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"book_rating_highest": ratings.order_by("-rating").first(),
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"best_ratings_books_ids": best_ratings_books_ids,
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"paginated_years": paginated_years,
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}
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return TemplateResponse(request, "annual_summary/layout.html", data)
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