forked from mirrors/bookwyrm
76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
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""" book list views"""
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from django.core.paginator import Paginator
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from django.db.models import Avg, DecimalField
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from django.db.models.functions import Coalesce
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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 django.views.decorators.clickjacking import xframe_options_exempt
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from bookwyrm import models
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from bookwyrm.settings import PAGE_LENGTH
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# pylint: disable=no-self-use
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class EmbedList(View):
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"""embeded book list page"""
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def get(self, request, list_id, list_key):
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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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embed_key = str(book_list.embed_key.hex)
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if list_key != embed_key:
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raise Http404()
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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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directional_sort_by = {
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"order": "order",
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"title": "book__title",
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"rating": "average_rating",
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}[sort_by]
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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.prefetch_related("user", "book", "book__authors")
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if sort_by == "rating":
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items = items.annotate(
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average_rating=Avg(
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Coalesce("book__review__rating", 0.0),
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output_field=DecimalField(),
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)
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)
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items = items.filter(approved=True).order_by(directional_sort_by)
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paginated = Paginator(items, PAGE_LENGTH)
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page = paginated.get_page(request.GET.get("page"))
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data = {
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"list": book_list,
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"items": page,
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"page_range": paginated.get_elided_page_range(
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page.number, on_each_side=2, on_ends=1
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),
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}
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return TemplateResponse(request, "lists/embed-list.html", data)
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@xframe_options_exempt
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def unsafe_embed_list(request, *args, **kwargs):
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"""allows the EmbedList view to be loaded through unsafe iframe origins"""
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embed_list_view = EmbedList.as_view()
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return embed_list_view(request, *args, **kwargs)
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