mirror of
https://github.com/bookwyrm-social/bookwyrm.git
synced 2024-06-27 01:10:38 +00:00
357 lines
12 KiB
Python
357 lines
12 KiB
Python
""" book list views"""
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from django.contrib.auth.decorators import login_required
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from django.core.paginator import Paginator
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from django.db import IntegrityError, transaction
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from django.db.models import Avg, Count, Q, Max
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from django.db.models.functions import Coalesce
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from django.http import HttpResponseNotFound, HttpResponseBadRequest
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from django.shortcuts import get_object_or_404, redirect
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from django.template.response import TemplateResponse
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from django.utils.decorators import method_decorator
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from django.views import View
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from django.views.decorators.http import require_POST
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from bookwyrm import forms, models
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from bookwyrm.activitypub import ActivitypubResponse
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from bookwyrm.connectors import connector_manager
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from .helpers import is_api_request, privacy_filter
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from .helpers import get_user_from_username
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# pylint: disable=no-self-use
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class Lists(View):
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""" book list page """
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def get(self, request):
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""" display a book list """
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try:
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page = int(request.GET.get("page", 1))
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except ValueError:
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page = 1
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# hide lists with no approved books
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lists = (
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models.List.objects.annotate(
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item_count=Count("listitem", filter=Q(listitem__approved=True))
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)
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.filter(item_count__gt=0)
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.order_by("-updated_date")
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.distinct()
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)
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lists = privacy_filter(
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request.user, lists, privacy_levels=["public", "followers"]
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)
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paginated = Paginator(lists, 12)
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data = {
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"lists": paginated.get_page(page),
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"list_form": forms.ListForm(),
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"path": "/list",
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}
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return TemplateResponse(request, "lists/lists.html", data)
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@method_decorator(login_required, name="dispatch")
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# pylint: disable=unused-argument
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def post(self, request):
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""" create a book_list """
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form = forms.ListForm(request.POST)
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if not form.is_valid():
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return redirect("lists")
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book_list = form.save()
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return redirect(book_list.local_path)
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class UserLists(View):
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""" a user's book list page """
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def get(self, request, username):
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""" display a book list """
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try:
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page = int(request.GET.get("page", 1))
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except ValueError:
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page = 1
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user = get_user_from_username(request.user, username)
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lists = models.List.objects.filter(user=user).all()
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lists = privacy_filter(request.user, lists)
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paginated = Paginator(lists, 12)
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data = {
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"user": user,
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"is_self": request.user.id == user.id,
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"lists": paginated.get_page(page),
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"list_form": forms.ListForm(),
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"path": user.local_path + "/lists",
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}
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return TemplateResponse(request, "user/lists.html", data)
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class List(View):
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""" book list page """
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def get(self, request, list_id):
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""" display a book list """
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book_list = get_object_or_404(models.List, id=list_id)
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if not book_list.visible_to_user(request.user):
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return HttpResponseNotFound()
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if is_api_request(request):
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return ActivitypubResponse(book_list.to_activity(**request.GET))
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query = request.GET.get("q")
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suggestions = None
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# sort_by shall be "order" unless a valid alternative is given
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sort_by = request.GET.get("sort_by", "order")
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if sort_by not in ("order", "title", "rating"):
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sort_by = "order"
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# direction shall be "ascending" unless a valid alternative is given
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direction = request.GET.get("direction", "ascending")
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if direction not in ("ascending", "descending"):
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direction = "ascending"
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page = request.GET.get("page", 1)
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if sort_by == "order":
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directional_sort_by = "order"
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if direction == "descending":
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directional_sort_by = "-" + directional_sort_by
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items = book_list.listitem_set.filter(approved=True).order_by(
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directional_sort_by
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)
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elif sort_by == "title":
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directional_sort_by = "book__title"
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if direction == "descending":
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directional_sort_by = "-" + directional_sort_by
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items = book_list.listitem_set.filter(approved=True).order_by(
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directional_sort_by
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)
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elif sort_by == "rating":
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directional_sort_by = "average_rating"
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if direction == "descending":
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directional_sort_by = "-" + directional_sort_by
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items = book_list.listitem_set.annotate(
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average_rating=Avg(Coalesce("book__review__rating", 0))
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).order_by(directional_sort_by)
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paginated = Paginator(items, 25)
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if query and request.user.is_authenticated:
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# search for books
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suggestions = connector_manager.local_search(query, raw=True)
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elif request.user.is_authenticated:
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# just suggest whatever books are nearby
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suggestions = request.user.shelfbook_set.filter(
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~Q(book__in=book_list.books.all())
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)
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suggestions = [s.book for s in suggestions[:5]]
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if len(suggestions) < 5:
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suggestions += [
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s.default_edition
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for s in models.Work.objects.filter(
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~Q(editions__in=book_list.books.all()),
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).order_by("-updated_date")
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][: 5 - len(suggestions)]
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data = {
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"list": book_list,
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"items": paginated.get_page(page),
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"pending_count": book_list.listitem_set.filter(approved=False).count(),
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"suggested_books": suggestions,
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"list_form": forms.ListForm(instance=book_list),
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"query": query or "",
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"sort_form": forms.SortListForm(
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{"direction": direction, "sort_by": sort_by}
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),
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}
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return TemplateResponse(request, "lists/list.html", data)
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@method_decorator(login_required, name="dispatch")
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# pylint: disable=unused-argument
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def post(self, request, list_id):
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""" edit a list """
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book_list = get_object_or_404(models.List, id=list_id)
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form = forms.ListForm(request.POST, instance=book_list)
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if not form.is_valid():
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return redirect("list", book_list.id)
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book_list = form.save()
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return redirect(book_list.local_path)
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class Curate(View):
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""" approve or discard list suggestsions """
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@method_decorator(login_required, name="dispatch")
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def get(self, request, list_id):
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""" display a pending list """
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book_list = get_object_or_404(models.List, id=list_id)
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if not book_list.user == request.user:
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# only the creater can curate the list
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return HttpResponseNotFound()
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data = {
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"list": book_list,
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"pending": book_list.listitem_set.filter(approved=False),
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"list_form": forms.ListForm(instance=book_list),
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}
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return TemplateResponse(request, "lists/curate.html", data)
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@method_decorator(login_required, name="dispatch")
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# pylint: disable=unused-argument
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def post(self, request, list_id):
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""" edit a book_list """
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book_list = get_object_or_404(models.List, id=list_id)
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suggestion = get_object_or_404(models.ListItem, id=request.POST.get("item"))
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approved = request.POST.get("approved") == "true"
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if approved:
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suggestion.approved = True
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suggestion.save()
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else:
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deleted_order = suggestion.order
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suggestion.delete(broadcast=False)
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normalize_book_list_ordering(book_list.id, start=deleted_order)
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return redirect("list-curate", book_list.id)
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@require_POST
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def add_book(request):
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""" put a book on a list """
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book_list = get_object_or_404(models.List, id=request.POST.get("list"))
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if not book_list.visible_to_user(request.user):
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return HttpResponseNotFound()
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order_max = book_list.listitem_set.aggregate(Max("order"))["order__max"] or 0
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book = get_object_or_404(models.Edition, id=request.POST.get("book"))
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# do you have permission to add to the list?
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try:
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if request.user == book_list.user or book_list.curation == "open":
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# go ahead and add it
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models.ListItem.objects.create(
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book=book,
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book_list=book_list,
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user=request.user,
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order=order_max + 1,
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)
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elif book_list.curation == "curated":
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# make a pending entry
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models.ListItem.objects.create(
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approved=False,
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book=book,
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book_list=book_list,
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user=request.user,
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order=order_max + 1,
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)
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else:
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# you can't add to this list, what were you THINKING
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return HttpResponseBadRequest()
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except IntegrityError:
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# if the book is already on the list, don't flip out
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pass
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return redirect("list", book_list.id)
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@require_POST
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def remove_book(request, list_id):
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""" remove a book from a list """
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with transaction.atomic():
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book_list = get_object_or_404(models.List, id=list_id)
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item = get_object_or_404(models.ListItem, id=request.POST.get("item"))
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if not book_list.user == request.user and not item.user == request.user:
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return HttpResponseNotFound()
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deleted_order = item.order
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item.delete()
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normalize_book_list_ordering(book_list.id, start=deleted_order)
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return redirect("list", list_id)
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@require_POST
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def set_book_position(request, list_item_id):
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"""
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Action for when the list user manually specifies a list position, takes special care with the unique ordering per list
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"""
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with transaction.atomic():
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list_item = get_object_or_404(models.ListItem, id=list_item_id)
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try:
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int_position = int(request.POST.get("position"))
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except ValueError:
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return HttpResponseBadRequest(
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"bad value for position. should be an integer"
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)
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if int_position < 1:
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return HttpResponseBadRequest("position cannot be less than 1")
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book_list = list_item.book_list
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order_max = book_list.listitem_set.aggregate(Max("order"))["order__max"]
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if int_position > order_max:
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int_position = order_max
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if request.user not in (book_list.user, list_item.user):
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return HttpResponseNotFound()
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original_order = list_item.order
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if original_order == int_position:
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return
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elif original_order > int_position:
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list_item.order = -1
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list_item.save()
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increment_order_in_reverse(book_list.id, int_position, original_order)
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else:
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list_item.order = -1
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list_item.save()
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decrement_order(book_list.id, original_order, int_position)
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list_item.order = int_position
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list_item.save()
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return redirect("list", book_list.id)
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@transaction.atomic
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def increment_order_in_reverse(book_list_id, start, end):
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try:
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book_list = models.List.objects.get(id=book_list_id)
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except models.List.DoesNotExist:
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return
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items = book_list.listitem_set.filter(order__gte=start, order__lt=end).order_by(
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"-order"
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)
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for item in items:
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item.order += 1
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item.save()
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@transaction.atomic
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def decrement_order(book_list_id, start, end):
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try:
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book_list = models.List.objects.get(id=book_list_id)
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except models.List.DoesNotExist:
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return
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items = book_list.listitem_set.filter(order__gt=start, order__lte=end).order_by(
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"order"
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)
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for item in items:
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item.order -= 1
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item.save()
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@transaction.atomic
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def normalize_book_list_ordering(book_list_id, start=0, add_offset=0):
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try:
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book_list = models.List.objects.get(id=book_list_id)
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except models.List.DoesNotExist:
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return
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items = book_list.listitem_set.filter(order__gt=start).order_by("order")
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for i, item in enumerate(items, start):
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effective_order = i + add_offset
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if item.order != effective_order:
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item.order = effective_order
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item.save()
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