forked from mirrors/bookwyrm
263 lines
8.8 KiB
Python
263 lines
8.8 KiB
Python
""" non-interactive pages """
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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.models import Q
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from django.http import HttpResponseNotFound, 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.utils import timezone
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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 bookwyrm import activitystreams, forms, models
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from bookwyrm.models.user import FeedFilterChoices
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from bookwyrm.activitypub import ActivitypubResponse
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from bookwyrm.settings import PAGE_LENGTH, STREAMS
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from bookwyrm.suggested_users import suggested_users
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from .helpers import filter_stream_by_status_type, get_user_from_username
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from .helpers import is_api_request, is_bookwyrm_request, maybe_redirect_local_path
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from .annual_summary import get_annual_summary_year
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# pylint: disable= no-self-use
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@method_decorator(login_required, name="dispatch")
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class Feed(View):
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"""activity stream"""
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def post(self, request, tab):
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"""save feed settings form, with a silent validation fail"""
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filters_applied = False
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form = forms.FeedStatusTypesForm(request.POST, instance=request.user)
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if form.is_valid():
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# workaround to avoid broadcasting this change
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user = form.save(commit=False)
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user.save(broadcast=False, update_fields=["feed_status_types"])
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filters_applied = True
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return self.get(request, tab, filters_applied)
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def get(self, request, tab, filters_applied=False):
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"""user's homepage with activity feed"""
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tab = [s for s in STREAMS if s["key"] == tab]
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tab = tab[0] if tab else STREAMS[0]
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activities = activitystreams.streams[tab["key"]].get_activity_stream(
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request.user
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)
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filtered_activities = filter_stream_by_status_type(
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activities,
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allowed_types=request.user.feed_status_types,
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)
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paginated = Paginator(filtered_activities, PAGE_LENGTH)
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suggestions = suggested_users.get_suggestions(request.user)
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data = {
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**feed_page_data(request.user),
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**{
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"user": request.user,
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"activities": paginated.get_page(request.GET.get("page")),
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"suggested_users": suggestions,
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"tab": tab,
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"streams": STREAMS,
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"goal_form": forms.GoalForm(),
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"feed_status_types_options": FeedFilterChoices,
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"filters_applied": filters_applied,
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"path": f"/{tab['key']}",
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"annual_summary_year": get_annual_summary_year(),
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},
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}
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return TemplateResponse(request, "feed/feed.html", data)
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@method_decorator(login_required, name="dispatch")
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class DirectMessage(View):
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"""dm view"""
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def get(self, request, username=None):
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"""like a feed but for dms only"""
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# remove fancy subclasses of status, keep just good ol' notes
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activities = (
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models.Status.privacy_filter(request.user, privacy_levels=["direct"])
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.filter(
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review__isnull=True,
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comment__isnull=True,
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quotation__isnull=True,
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generatednote__isnull=True,
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)
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.order_by("-published_date")
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)
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user = None
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if username:
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try:
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user = get_user_from_username(request.user, username)
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except Http404:
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pass
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if user:
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activities = activities.filter(Q(user=user) | Q(mention_users=user))
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paginated = Paginator(activities, PAGE_LENGTH)
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data = {
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**feed_page_data(request.user),
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**{
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"user": request.user,
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"partner": user,
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"activities": paginated.get_page(request.GET.get("page")),
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"path": "/direct-messages",
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},
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}
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return TemplateResponse(request, "feed/direct_messages.html", data)
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class Status(View):
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"""get posting"""
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# pylint: disable=unused-argument
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def get(self, request, username, status_id, slug=None):
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"""display a particular status (and replies, etc)"""
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user = get_user_from_username(request.user, username)
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status = get_object_or_404(
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models.Status.objects.select_subclasses(),
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user=user,
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id=status_id,
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deleted=False,
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)
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# make sure the user is authorized to see the status
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status.raise_visible_to_user(request.user)
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if is_api_request(request):
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return ActivitypubResponse(
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status.to_activity(pure=not is_bookwyrm_request(request))
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)
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if redirect := maybe_redirect_local_path(request, status):
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return redirect
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visible_thread = (
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models.Status.privacy_filter(request.user)
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.filter(thread_id=status.thread_id)
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.values_list("id", flat=True)
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)
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visible_thread = list(visible_thread)
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ancestors = models.Status.objects.select_subclasses().raw(
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"""
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WITH RECURSIVE get_thread(depth, id, path) AS (
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SELECT 1, st.id, ARRAY[st.id]
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FROM bookwyrm_status st
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WHERE id = '%s' AND id = ANY(%s)
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UNION
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SELECT (gt.depth + 1), st.reply_parent_id, path || st.id
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FROM get_thread gt, bookwyrm_status st
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WHERE st.id = gt.id AND depth < 5 AND st.id = ANY(%s)
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)
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SELECT * FROM get_thread ORDER BY path DESC;
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""",
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params=[status.reply_parent_id or 0, visible_thread, visible_thread],
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)
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children = models.Status.objects.select_subclasses().raw(
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"""
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WITH RECURSIVE get_thread(depth, id, path) AS (
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SELECT 1, st.id, ARRAY[st.id]
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FROM bookwyrm_status st
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WHERE reply_parent_id = '%s' AND id = ANY(%s)
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UNION
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SELECT (gt.depth + 1), st.id, path || st.id
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FROM get_thread gt, bookwyrm_status st
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WHERE st.reply_parent_id = gt.id AND depth < 5 AND st.id = ANY(%s)
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)
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SELECT * FROM get_thread ORDER BY path;
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""",
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params=[status.id, visible_thread, visible_thread],
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)
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preview = None
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if hasattr(status, "book"):
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preview = status.book.preview_image
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elif status.mention_books.exists():
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preview = status.mention_books.first().preview_image
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data = {
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**feed_page_data(request.user),
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**{
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"status": status,
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"children": children,
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"ancestors": ancestors,
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"preview": preview,
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},
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}
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return TemplateResponse(request, "feed/status.html", data)
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class Replies(View):
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"""replies page (a json view of status)"""
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def get(self, request, username, status_id):
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"""ordered collection of replies to a status"""
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# the html view is the same as Status
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if not is_api_request(request):
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status_view = Status.as_view()
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return status_view(request, username, status_id)
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# the json view is different than Status
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status = models.Status.objects.get(id=status_id)
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if status.user.localname != username:
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return HttpResponseNotFound()
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status.raise_visible_to_user(request.user)
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return ActivitypubResponse(status.to_replies(**request.GET))
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def feed_page_data(user):
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"""info we need for every feed page"""
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if not user.is_authenticated:
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return {}
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goal = models.AnnualGoal.objects.filter(user=user, year=timezone.now().year).first()
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return {
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"goal": goal,
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"goal_form": forms.GoalForm(),
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}
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def get_suggested_books(user, max_books=5):
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"""helper to get a user's recent books"""
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book_count = 0
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preset_shelves = [("reading", max_books), ("read", 2), ("to-read", max_books)]
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suggested_books = []
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for (preset, shelf_max) in preset_shelves:
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limit = (
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shelf_max
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if shelf_max < (max_books - book_count)
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else max_books - book_count
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)
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shelf = user.shelf_set.get(identifier=preset)
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if not shelf.books.exists():
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continue
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shelf_preview = {
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"name": shelf.name,
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"identifier": shelf.identifier,
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"books": models.Edition.viewer_aware_objects(user)
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.filter(
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shelfbook__shelf=shelf,
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)
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.order_by("-shelfbook__shelved_date")
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.prefetch_related("authors")[:limit],
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}
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suggested_books.append(shelf_preview)
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book_count += len(shelf_preview["books"])
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return suggested_books
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