More views in DRF.

[wolnelektury.git] / src / catalogue / api / views.py

diff --git a/src/catalogue/api/views.py b/src/catalogue/api/views.py
index c20cccb..e21aab7 100644 (file)
--- a/src/catalogue/api/views.py
+++ b/src/catalogue/api/views.py
@@ -1,8 +1,13 @@
-from django.http import HttpResponse
-from rest_framework.generics import ListAPIView, RetrieveAPIView
+from django.http import Http404, HttpResponse
+from rest_framework.generics import ListAPIView, RetrieveAPIView, get_object_or_404
+from rest_framework.permissions import DjangoModelPermissionsOrAnonReadOnly
+from rest_framework import status
 from paypal.permissions import IsSubscribed
+from api.handlers import read_tags
+from .helpers import books_after, order_books
 from . import serializers
-from catalogue.models import Book, Collection
+from catalogue.models import Book, Collection, Tag, Fragment
+from catalogue.models.tag import prefetch_relations
 
 
 class CollectionList(ListAPIView):
@@ -16,12 +21,82 @@ class CollectionDetail(RetrieveAPIView):
     serializer_class = serializers.CollectionSerializer
 
 
+class BookList(ListAPIView):
+    permission_classes = [DjangoModelPermissionsOrAnonReadOnly]
+    queryset = Book.objects.none()  # Required for DjangoModelPermissions
+    serializer_class = serializers.BaseBookSerializer
+
+    def get_queryset(self):
+        try:
+            tags, ancestors = read_tags(
+                self.kwargs['tags'], self.request,
+                allowed=('author', 'epoch', 'kind', 'genre')
+            )
+        except ValueError:
+            raise Http404
+
+        new_api = self.request.query_params.get('new_api')
+        after = self.request.query_params.get('after', self.kwargs.get('after'))
+        count = self.request.query_params.get('count', self.kwargs.get('count'))
+
+        if tags:
+            if self.kwargs.get('top_level'):
+                books = Book.tagged_top_level(tags)
+                if not books:
+                    raise Http404
+                return books
+            else:
+                books = Book.tagged.with_all(tags)
+        else:
+            books = Book.objects.all()
+        books = order_books(books, new_api)
+
+        if self.kwargs.get('top_level'):
+            books = books.filter(parent=None)
+        if self.kwargs.get('audiobooks'):
+            books = books.filter(media__type='mp3').distinct()
+        if self.kwargs.get('daisy'):
+            books = books.filter(media__type='daisy').distinct()
+        if self.kwargs.get('recommended'):
+            books = books.filter(recommended=True)
+        if self.kwargs.get('newest'):
+            books = books.order_by('-created_at')
+
+        if after:
+            books = books_after(books, after, new_api)
+
+        prefetch_relations(books, 'author')
+        prefetch_relations(books, 'genre')
+        prefetch_relations(books, 'kind')
+        prefetch_relations(books, 'epoch')
+
+        if count:
+            books = books[:count]
+
+        return books
+
+    def post(self, request):
+        # Permission needed.
+        data = json.loads(request.POST.get('data'))
+        form = BookImportForm(data)
+        if form.is_valid():
+            form.save()
+            return Response({}, status=status.HTTP_201_CREATED)
+        else:
+            raise Http404
+
+
 class BookDetail(RetrieveAPIView):
     queryset = Book.objects.all()
     lookup_field = 'slug'
     serializer_class = serializers.BookDetailSerializer
 
 
+class Preview(ListAPIView):
+    queryset = Book.objects.filter(preview=True)
+    serializer_class = serializers.BookPreviewSerializer
+
+
 class EpubView(RetrieveAPIView):
     queryset = Book.objects.all()
     lookup_field = 'slug'
@@ -29,3 +104,61 @@ class EpubView(RetrieveAPIView):
 
     def get(self, *args, **kwargs):
         return HttpResponse(self.get_object().get_media('epub'))
+
+
+class TagCategoryView(ListAPIView):
+    serializer_class = serializers.TagSerializer
+
+    def get_queryset(self):
+        category = self.kwargs['category']
+        tags = Tag.objects.filter(category=category).exclude(items=None).order_by('slug')
+        if self.request.query_params.get('book_only') == 'true':
+            tags = tags.filter(for_books=True)
+        if self.request.GET.get('picture_only') == 'true':
+            tags = filter(for_pictures=True)
+
+        after = self.request.query_params.get('after')
+        count = self.request.query_params.get('count')
+        if after:
+            tags = tags.filter(slug__gt=after)
+        if count:
+            tags = tags[:count]
+
+        return tags
+
+
+class TagView(RetrieveAPIView):
+    serializer_class = serializers.TagDetailSerializer
+
+    def get_object(self):
+        return get_object_or_404(
+            Tag,
+            category=self.kwargs['category'],
+            slug=self.kwargs['slug']
+        )
+
+
+class FragmentList(ListAPIView):
+    serializer_class = serializers.FragmentSerializer
+
+    def get_queryset(self):
+        try:
+            tags, ancestors = read_tags(
+                self.kwargs['tags'],
+                self.request,
+                allowed={'author', 'epoch', 'kind', 'genre', 'book', 'theme'}
+            )
+        except ValueError:
+            raise Http404
+        return Fragment.tagged.with_all(tags).select_related('book')
+
+
+class FragmentView(RetrieveAPIView):
+    serializer_class = serializers.FragmentDetailSerializer
+
+    def get_object(self):
+        return get_object_or_404(
+            Fragment,
+            book__slug=self.kwargs['book'],
+            anchor=self.kwargs['anchor']
+        )