moviewyrm/bookwyrm/views/landing.py

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2021-01-12 18:44:17 +00:00
''' non-interactive pages '''
from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator
from django.db.models import Avg, Max
from django.template.response import TemplateResponse
from django.utils.decorators import method_decorator
from django.views import View
from bookwyrm import forms, models
from bookwyrm.settings import PAGE_LENGTH
from .helpers import get_activity_feed
# pylint: disable= no-self-use
@method_decorator(login_required, name='dispatch')
class About(View):
''' create invites '''
def get(self, request):
''' more information about the instance '''
data = {
'title': 'About',
}
return TemplateResponse(request, 'about.html', data)
class Home(View):
''' discover page or home feed depending on auth '''
def get(self, request):
''' this is the same as the feed on the home tab '''
if request.user.is_authenticated:
feed_view = Feed.as_view()
return feed_view(request, 'home')
discover_view = Discover.as_view()
return discover_view(request)
class Discover(View):
''' preview of recently reviewed books '''
def get(self, request):
''' tiled book activity page '''
books = models.Edition.objects.filter(
review__published_date__isnull=False,
review__user__local=True,
review__privacy__in=['public', 'unlisted'],
).exclude(
cover__exact=''
).annotate(
Max('review__published_date')
).order_by('-review__published_date__max')[:6]
ratings = {}
for book in books:
reviews = models.Review.objects.filter(
book__in=book.parent_work.editions.all()
)
reviews = get_activity_feed(
request.user, ['public', 'unlisted'], queryset=reviews)
ratings[book.id] = reviews.aggregate(Avg('rating'))['rating__avg']
data = {
'title': 'Discover',
'register_form': forms.RegisterForm(),
'books': list(set(books)),
'ratings': ratings
}
return TemplateResponse(request, 'discover.html', data)
@method_decorator(login_required, name='dispatch')
class Feed(View):
''' activity stream '''
def get(self, request, tab):
''' user's homepage with activity feed '''
try:
page = int(request.GET.get('page', 1))
except ValueError:
page = 1
suggested_books = get_suggested_books(request.user)
if tab == 'home':
activities = get_activity_feed(
request.user, ['public', 'unlisted', 'followers'],
following_only=True)
elif tab == 'local':
activities = get_activity_feed(
request.user, ['public', 'followers'], local_only=True)
else:
activities = get_activity_feed(
request.user, ['public', 'followers'])
paginated = Paginator(activities, PAGE_LENGTH)
activity_page = paginated.page(page)
prev_page = next_page = None
if activity_page.has_next():
next_page = '/%s/?page=%d#feed' % \
(tab, activity_page.next_page_number())
if activity_page.has_previous():
prev_page = '/%s/?page=%d#feed' % \
(tab, activity_page.previous_page_number())
data = {
'title': 'Updates Feed',
'user': request.user,
'suggested_books': suggested_books,
'activities': activity_page.object_list,
'tab': tab,
'next': next_page,
'prev': prev_page,
}
return TemplateResponse(request, 'feed.html', data)
def get_suggested_books(user, max_books=5):
''' helper to get a user's recent books '''
book_count = 0
preset_shelves = [
('reading', max_books), ('read', 2), ('to-read', max_books)
]
suggested_books = []
for (preset, shelf_max) in preset_shelves:
limit = shelf_max if shelf_max < (max_books - book_count) \
else max_books - book_count
shelf = user.shelf_set.get(identifier=preset)
shelf_books = shelf.shelfbook_set.order_by(
'-updated_date'
).all()[:limit]
if not shelf_books:
continue
shelf_preview = {
'name': shelf.name,
'books': [s.book for s in shelf_books]
}
suggested_books.append(shelf_preview)
book_count += len(shelf_preview['books'])
return suggested_books