moviewyrm/bookwyrm/views/books/books.py

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""" the good stuff! the books! """
from uuid import uuid4
from django.contrib.auth.decorators import login_required, permission_required
from django.core.files.base import ContentFile
from django.core.paginator import Paginator
from django.db.models import Avg, Q
from django.http import Http404
from django.shortcuts import get_object_or_404, redirect
from django.template.response import TemplateResponse
from django.views import View
from django.views.decorators.http import require_POST
from bookwyrm import forms, models
from bookwyrm.activitypub import ActivitypubResponse
from bookwyrm.connectors import connector_manager
from bookwyrm.connectors.abstract_connector import get_image
from bookwyrm.settings import PAGE_LENGTH
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from bookwyrm.views.helpers import is_api_request
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# pylint: disable=no-self-use
class Book(View):
"""a book! this is the stuff"""
def get(self, request, book_id, user_statuses=False):
"""info about a book"""
if is_api_request(request):
book = get_object_or_404(
models.Book.objects.select_subclasses(), id=book_id
)
return ActivitypubResponse(book.to_activity())
user_statuses = user_statuses if request.user.is_authenticated else False
# it's safe to use this OR because edition and work and subclasses of the same
# table, so they never have clashing IDs
book = (
models.Edition.viewer_aware_objects(request.user)
.filter(Q(id=book_id) | Q(parent_work__id=book_id))
.order_by("-edition_rank")
.select_related("parent_work")
.prefetch_related("authors")
.first()
)
if not book or not book.parent_work:
raise Http404()
# all reviews for all editions of the book
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reviews = models.Review.privacy_filter(request.user).filter(
book__parent_work__editions=book
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)
# the reviews to show
if user_statuses:
if user_statuses == "review":
queryset = book.review_set.select_subclasses()
elif user_statuses == "comment":
queryset = book.comment_set
else:
queryset = book.quotation_set
queryset = queryset.filter(user=request.user, deleted=False)
else:
queryset = reviews.exclude(Q(content__isnull=True) | Q(content=""))
queryset = queryset.select_related("user").order_by("-published_date")
paginated = Paginator(queryset, PAGE_LENGTH)
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lists = models.List.privacy_filter(request.user,).filter(
listitem__approved=True,
listitem__book__in=book.parent_work.editions.all(),
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)
data = {
"book": book,
"statuses": paginated.get_page(request.GET.get("page")),
"review_count": reviews.count(),
"ratings": reviews.filter(
Q(content__isnull=True) | Q(content="")
).select_related("user")
if not user_statuses
else None,
"rating": reviews.aggregate(Avg("rating"))["rating__avg"],
"lists": lists,
}
if request.user.is_authenticated:
readthroughs = models.ReadThrough.objects.filter(
user=request.user,
book=book,
).order_by("start_date")
for readthrough in readthroughs:
readthrough.progress_updates = (
readthrough.progressupdate_set.all().order_by("-updated_date")
)
data["readthroughs"] = readthroughs
data["user_shelfbooks"] = models.ShelfBook.objects.filter(
user=request.user, book=book
).select_related("shelf")
data["other_edition_shelves"] = models.ShelfBook.objects.filter(
~Q(book=book),
user=request.user,
book__parent_work=book.parent_work,
).select_related("shelf", "book")
filters = {"user": request.user, "deleted": False}
data["user_statuses"] = {
"review_count": book.review_set.filter(**filters).count(),
"comment_count": book.comment_set.filter(**filters).count(),
"quotation_count": book.quotation_set.filter(**filters).count(),
}
return TemplateResponse(request, "book/book.html", data)
@login_required
@require_POST
def upload_cover(request, book_id):
"""upload a new cover"""
book = get_object_or_404(models.Edition, id=book_id)
book.last_edited_by = request.user
url = request.POST.get("cover-url")
if url:
image = set_cover_from_url(url)
if image:
book.cover.save(*image)
return redirect(f"{book.local_path}?cover_error=True")
form = forms.CoverForm(request.POST, request.FILES, instance=book)
if not form.is_valid() or not form.files.get("cover"):
return redirect(book.local_path)
book.cover = form.files["cover"]
book.save()
return redirect(book.local_path)
def set_cover_from_url(url):
"""load it from a url"""
try:
image_file = get_image(url)
except: # pylint: disable=bare-except
return None
if not image_file:
return None
image_name = str(uuid4()) + "." + url.split(".")[-1]
image_content = ContentFile(image_file.content)
return [image_name, image_content]
@login_required
@require_POST
@permission_required("bookwyrm.edit_book", raise_exception=True)
def add_description(request, book_id):
"""upload a new cover"""
book = get_object_or_404(models.Edition, id=book_id)
description = request.POST.get("description")
book.description = description
book.last_edited_by = request.user
book.save(update_fields=["description", "last_edited_by"])
return redirect("book", book.id)
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@login_required
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@require_POST
def resolve_book(request):
"""figure out the local path to a book from a remote_id"""
remote_id = request.POST.get("remote_id")
connector = connector_manager.get_or_create_connector(remote_id)
book = connector.get_or_create_book(remote_id)
return redirect("book", book.id)
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@login_required
@require_POST
@permission_required("bookwyrm.edit_book", raise_exception=True)
# pylint: disable=unused-argument
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def update_book_from_remote(request, book_id, connector_identifier):
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"""load the remote data for this book"""
connector = connector_manager.load_connector(
get_object_or_404(models.Connector, identifier=connector_identifier)
)
book = get_object_or_404(models.Book.objects.select_subclasses(), id=book_id)
connector.update_book_from_remote(book)
return redirect("book", book.id)