240 lines
8.1 KiB
Python
240 lines
8.1 KiB
Python
from django.conf import settings
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from django.core.cache import cache
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from django.core.paginator import Paginator
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from django.db.models import Count, Q, Sum
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from django.http import JsonResponse
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from django.shortcuts import get_object_or_404, redirect
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from django.urls import reverse
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from django.views import View
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from django.views.generic import DetailView, ListView, TemplateView
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from .models import Album, Photo, Redir
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class AlbumsList(ListView):
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"""Displays a paginated list of public albums."""
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model = Album
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template_name = 'gallery/album_list.html'
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paginate_by = 30
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def get_queryset(self):
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page = self.request.GET.get('page', 1)
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key = f'album_list_queryset_page_{page}'
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queryset = cache.get(key)
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if not queryset:
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queryset = (
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Album.objects.filter(is_public=True)
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.select_related('cover')
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.annotate(
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photo_count=Count('photos'),
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total_views=Sum('photos__views')
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)
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.order_by('-album_date')
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)
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cache.set(key, queryset, 60 * 5)
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return queryset
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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page = int(self.request.GET.get('page', 1))
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# Canonical_url
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canonical_url = self.request.build_absolute_uri(reverse('gallery:albums_url'))
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if page > 1:
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canonical_url += f'?page={page}'
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context['canonical_url'] = canonical_url
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return context
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class AlbumDetail(DetailView):
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"""Shows a single album and its paginated photos."""
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model = Album
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template_name = 'gallery/album_detail.html'
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def get_object(self, queryset=None):
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return get_object_or_404(Album, slug=self.kwargs.get('album_slug'))
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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# photos = self.object.photos.all().order_by('taken_at')
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photos = self.object.photos.all().select_related('album').order_by('taken_at')
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paginator = Paginator(photos, 30)
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page_obj = paginator.get_page(self.request.GET.get('page'))
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# Canonical_url
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page = int(self.request.GET.get('page', 1))
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canonical_url = self.request.build_absolute_uri(self.object.get_absolute_url())
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if page > 1:
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canonical_url += f'?page={page}'
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context.update({
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'photos': page_obj.object_list,
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'page_obj': page_obj,
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'canonical_url': canonical_url,
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})
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return context
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class PhotosList(ListView):
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"""Shows all public photos sorted by user-selected ordering."""
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model = Photo
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paginate_by = 30
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def get_queryset(self):
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ordering_options = {
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'latest': '-taken_at',
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'liked': 'likes',
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'popular': '-views'
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}
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order = ordering_options.get(self.request.GET.get('order', 'latest'), '-taken_at')
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return Photo.objects.filter(album__is_public=True).order_by(order).select_related('album')
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['order'] = self.request.GET.get('order', 'latest')
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context['canonical_url'] = self.request.build_absolute_uri(reverse('gallery:photos_url'))
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return context
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class PhotoDetail(DetailView):
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"""Shows a single photo and handles liking functionality."""
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model = Photo
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slug_url_kwarg = 'photo_slug'
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template_name = 'gallery/photo_detail.html'
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def get_object(self, queryset=None):
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album_slug = self.kwargs.get('album_slug')
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photo_slug = self.kwargs.get('photo_slug')
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# photo = get_object_or_404(Photo, slug=photo_slug, album__slug=album_slug)
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photo = get_object_or_404(Photo.objects.select_related('album'), slug=photo_slug, album__slug=album_slug)
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# Track views using session to avoid duplicate counts
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if photo.slug not in self.request.session:
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photo.add_view()
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self.request.session[photo.slug] = 0
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return photo
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update({
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"next": self.object.get_next(),
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"prev": self.object.get_prev(),
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"canonical_url": self.request.build_absolute_uri(self.object.get_absolute_url()),
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"liked": self.request.session.get(f"liked_{self.object.slug}", False)
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})
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return context
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class PhotoLike(View):
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"""Ajax like photo button."""
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def get(self, request, *args, **kwargs):
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return JsonResponse({'error': 'This endpoint only supports POST requests.'}, status=405)
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def post(self, request, album_slug, photo_slug):
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photo = get_object_or_404(Photo.objects.select_related('album'), slug=photo_slug, album__slug=album_slug)
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session_key = f"liked_{photo.slug}"
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liked = request.session.get(session_key, False)
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if not liked:
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photo.likes += 1
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if request.user.is_authenticated:
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photo.is_favorite = True
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request.session[session_key] = True
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status = "liked"
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else:
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photo.likes = max(0, photo.likes - 1)
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if request.user.is_authenticated:
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photo.is_favorite = False
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request.session[session_key] = False
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status = "unliked"
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photo.save()
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return JsonResponse({'success': True, 'likes': photo.likes, 'status': status})
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class PhotoSlideshow(DetailView):
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model = Photo
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slug_url_kwarg = 'photo_slug'
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template_name = 'gallery/photo_slideshow.html'
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def get_object(self, queryset=None):
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album_slug = self.kwargs.get('album_slug')
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photo_slug = self.kwargs.get('photo_slug')
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photo = get_object_or_404(
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Photo.objects.select_related('album'),
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slug=photo_slug,
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album__slug=album_slug
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)
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if photo.slug not in self.request.session:
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photo.add_view()
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self.request.session[photo.slug] = 0
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return photo
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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current_photo = self.object
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next_photo = current_photo.get_next()
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if not next_photo:
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next_photo = Photo.objects.filter(album=current_photo.album).order_by('taken_at').first()
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context.update({
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"next_photo": next_photo,
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"liked": self.request.session.get(f"liked_{current_photo.slug}", False)
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})
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return context
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class Search(TemplateView):
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"""Search view for public albums by name, place or city."""
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template_name = "gallery/album_search.html"
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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query = self.request.GET.get('q', '').strip()
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context['query'] = query
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results = Album.objects.none()
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if query:
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results = Album.objects.filter(
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Q(is_public=True),
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Q(name__icontains=query) |
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Q(location__place__icontains=query) |
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Q(location__city__name__icontains=query)
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).order_by('-album_date').distinct()
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paginator = Paginator(results, 30)
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page_obj = paginator.get_page(self.request.GET.get('page'))
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context.update({
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'results': page_obj.object_list,
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'page_obj': page_obj,
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'paginator': paginator,
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'is_paginated': page_obj.has_other_pages(),
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'canonical_url': self.request.build_absolute_uri(reverse('gallery:search_url'))
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})
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return context
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class About(TemplateView):
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"""Static about page."""
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template_name = "gallery/about.html"
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['canonical_url'] = self.request.build_absolute_uri(reverse('gallery:about_url'))
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return context
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def redirect_to_album(request, redir_path):
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"""Handles redirect logic for shortened/legacy album URLs."""
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redir = get_object_or_404(Redir, path=redir_path)
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return redirect('gallery:album_url', album_slug=redir.album.slug)
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