moviewyrm/bookwyrm/views/books/editions.py

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""" the good stuff! the books! """
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from functools import reduce
import operator
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from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator
from django.db import transaction
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from django.db.models import Q
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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 models
from bookwyrm.activitypub import ActivitypubResponse
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 Editions(View):
"""list of editions"""
def get(self, request, book_id):
"""list of editions of a book"""
work = get_object_or_404(models.Work, id=book_id)
if is_api_request(request):
return ActivitypubResponse(work.to_edition_list(**request.GET))
filters = {}
if request.GET.get("language"):
filters["languages__contains"] = [request.GET.get("language")]
if request.GET.get("format"):
filters["physical_format__iexact"] = request.GET.get("format")
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editions = work.editions.order_by("-edition_rank")
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languages = set(sum(editions.values_list("languages", flat=True), []))
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editions = editions.filter(**filters)
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query = request.GET.get("q")
if query:
searchable_array_fields = ["languages", "publishers"]
searchable_fields = [
"title",
"physical_format",
"isbn_10",
"isbn_13",
"oclc_number",
"asin",
]
search_filter_entries = [
{f"{f}__icontains": query} for f in searchable_fields
] + [{f"{f}__iexact": query} for f in searchable_array_fields]
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editions = editions.filter(
reduce(operator.or_, (Q(**f) for f in search_filter_entries))
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)
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paginated = Paginator(editions, PAGE_LENGTH)
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data = {
"editions": paginated.get_page(request.GET.get("page")),
"work": work,
"languages": languages,
"formats": set(
e.physical_format.lower() for e in editions if e.physical_format
),
}
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return TemplateResponse(request, "book/editions/editions.html", data)
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@login_required
@require_POST
@transaction.atomic
def switch_edition(request):
"""switch your copy of a book to a different edition"""
edition_id = request.POST.get("edition")
new_edition = get_object_or_404(models.Edition, id=edition_id)
shelfbooks = models.ShelfBook.objects.filter(
book__parent_work=new_edition.parent_work, shelf__user=request.user
)
for shelfbook in shelfbooks.all():
with transaction.atomic():
models.ShelfBook.objects.create(
created_date=shelfbook.created_date,
user=shelfbook.user,
shelf=shelfbook.shelf,
book=new_edition,
)
shelfbook.delete()
readthroughs = models.ReadThrough.objects.filter(
book__parent_work=new_edition.parent_work, user=request.user
)
for readthrough in readthroughs.all():
readthrough.book = new_edition
readthrough.save()
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return redirect(f"/book/{new_edition.id}")