-
-
-# RESTful handlers
-
-
-
-
-
-class BookDetails(object):
- """Custom fields used for representing Books."""
-
- @classmethod
- def href(cls, book):
- """ Returns an URI for a Book in the API. """
- return API_BASE + reverse("catalogue_api_book", args=[book.slug])
-
- @classmethod
- def url(cls, book):
- """ Returns Book's URL on the site. """
- return WL_BASE + book.get_absolute_url()
-
- @classmethod
- def children(cls, book):
- """ Returns all children for a book. """
- return book.children.order_by('parent_number', 'sort_key')
-
- @classmethod
- def media(cls, book):
- """ Returns all media for a book. """
- return book.media.all()
-
- @classmethod
- def cover(cls, book):
- return MEDIA_BASE + book.cover.url if book.cover else ''
-
- @classmethod
- def cover_thumb(cls, book):
- return MEDIA_BASE + default.backend.get_thumbnail(
- book.cover, "139x193").url if book.cover else ''
-
- @classmethod
- def simple_thumb(cls, book):
- return MEDIA_BASE + book.cover_api_thumb.url if book.cover_api_thumb else ''
-
- @classmethod
- def simple_cover(cls, book):
- return MEDIA_BASE + book.simple_cover.url if book.simple_cover else ''
-
-
-class BookDetailHandler(BaseHandler, BookDetails):
- """ Main handler for Book objects.
-
- Responsible for single Book details.
- """
- allowed_methods = ['GET']
- fields = ['title', 'parent', 'children'] + Book.formats + [
- 'media', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'simple_cover', 'fragment_data', 'audio_length',
- 'preview', 'cover_color'] + [
- category_plural[c] for c in book_tag_categories]
-
- @piwik_track
- def read(self, request, book):
- """ Returns details of a book, identified by a slug and lang. """
- try:
- return Book.objects.get(slug=book)
- except Book.DoesNotExist:
- return rc.NOT_FOUND
-
-
-class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails):
- """ Main handler for Book objects.
-
- Responsible for lists of Book objects.
- """
- allowed_methods = ('GET',)
- model = Book
- fields = book_list_fields
-
- # FIXME: Unused?
- @classmethod
- def genres(cls, book):
- """ Returns all media for a book. """
- return book.tags.filter(category='genre')
-
- @piwik_track
- def read(self, request, tags=None, top_level=False, audiobooks=False, daisy=False, pk=None,
- recommended=False, newest=False, books=None,
- after=None, count=None):
- """ Lists all books with given tags.
-
- :param tags: filtering tags; should be a path of categories
- and slugs, i.e.: authors/an-author/epoch/an-epoch/
- :param top_level: if True and a book is included in the results,
- it's children are aren't. By default all books matching the tags
- are returned.
- """
- if pk is not None:
- # FIXME: Unused?
- try:
- return Book.objects.get(pk=pk)
- except Book.DoesNotExist:
- return rc.NOT_FOUND
-
- try:
- tags, _ancestors = read_tags(tags, request, allowed=book_tag_categories)
- except ValueError:
- return rc.NOT_FOUND
-
- new_api = request.GET.get('new_api')
- if 'after' in request.GET:
- after = request.GET['after']
- if 'count' in request.GET:
- count = request.GET['count']
-
- if tags:
- if top_level:
- books = Book.tagged_top_level(tags)
- return books if books else rc.NOT_FOUND
- else:
- books = Book.tagged.with_all(tags)
- else:
- books = books if books is not None else Book.objects.all()
- books = order_books(books, new_api)
-
- if top_level:
- books = books.filter(parent=None)
- if audiobooks:
- books = books.filter(media__type='mp3').distinct()
- if daisy:
- books = books.filter(media__type='daisy').distinct()
- if recommended:
- books = books.filter(recommended=True)
- if newest:
- books = books.order_by('-created_at')
-
- if after:
- books = books_after(books, after, new_api)
-
- if new_api:
- books = books.only('slug', 'title', 'cover', 'cover_thumb', 'sort_key', 'sort_key_author')
- else:
- books = books.only('slug', 'title', 'cover', 'cover_thumb')
- for category in book_tag_categories:
- books = prefetch_relations(books, category)
-
- if count:
- books = books[:count]
-
- return books
-
- def create(self, request, *args, **kwargs):
- return rc.FORBIDDEN
-
-
-class BooksHandler(BookDetailHandler):
- allowed_methods = ('GET', 'POST')
- model = Book
- fields = book_list_fields + ['liked']
- anonymous = AnonymousBooksHandler
-
- # hack, because piston is stupid
- @classmethod
- def liked(cls, book):
- return getattr(book, 'liked', None)
-
- def read(self, request, **kwargs):
- books = AnonymousBooksHandler().read(request, **kwargs)
- likes = set(Book.tagged.with_any(request.user.tag_set.all()).values_list('id', flat=True))
-
- new_books = [
- BookProxy(book).set('liked', book.id in likes)
- for book in books]
- return QuerySetProxy(new_books)
-
- def create(self, request, *args, **kwargs):
- if not request.user.has_perm('catalogue.add_book'):
- return rc.FORBIDDEN
-
- data = json.loads(request.POST.get('data'))
- form = BookImportForm(data)
- if form.is_valid():
- form.save()
- return rc.CREATED
- else:
- return rc.NOT_FOUND
-
-
-class EBooksHandler(AnonymousBooksHandler):
- fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats) + ('slug',)
-
-
-class BookProxy(models.Model):
- class Meta:
- managed = False
-
- def __init__(self, book, key=None):
- self.book = book
- self.key = key
-
- def set(self, attr, value):
- self.__setattr__(attr, value)
- return self
-
- def __getattr__(self, item):
- return self.book.__getattribute__(item)
-
-
-class QuerySetProxy(models.QuerySet):
- def __init__(self, l):
- self.list = l
-
- def __iter__(self):
- return iter(self.list)
-
-
-class AnonFilterBooksHandler(AnonymousBooksHandler):
- fields = book_list_fields + ['key']
-
- def parse_bool(self, s):
- if s in ('true', 'false'):
- return s == 'true'
- else:
- return None
-
- def read(self, request):
- key_sep = '$'
- search_string = request.GET.get('search')
- is_lektura = self.parse_bool(request.GET.get('lektura'))
- is_audiobook = self.parse_bool(request.GET.get('audiobook'))
- preview = self.parse_bool(request.GET.get('preview'))
-
- new_api = request.GET.get('new_api')
- after = request.GET.get('after')
- count = int(request.GET.get('count', 50))
- books = order_books(Book.objects.distinct(), new_api)
- if is_lektura is not None:
- books = books.filter(has_audience=is_lektura)
- if is_audiobook is not None:
- if is_audiobook:
- books = books.filter(media__type='mp3')
- else:
- books = books.exclude(media__type='mp3')
- if preview is not None:
- books = books.filter(preview=preview)
- for key in request.GET:
- if key in category_singular:
- category = category_singular[key]
- if category in book_tag_categories:
- slugs = request.GET[key].split(',')
- tags = Tag.objects.filter(category=category, slug__in=slugs)
- books = Book.tagged.with_any(tags, books)
- if (search_string is not None) and len(search_string) < 3:
- search_string = None
- if search_string:
- search_string = re_escape(search_string)
- books_author = books.filter(cached_author__iregex='\m' + search_string)
- books_title = books.filter(title__iregex='\m' + search_string)
- books_title = books_title.exclude(id__in=list(books_author.values_list('id', flat=True)))
- if after and (key_sep in after):
- which, key = after.split(key_sep, 1)
- if which == 'title':
- book_lists = [(books_after(books_title, key, new_api), 'title')]
- else: # which == 'author'
- book_lists = [(books_after(books_author, key, new_api), 'author'), (books_title, 'title')]
- else:
- book_lists = [(books_author, 'author'), (books_title, 'title')]
- else:
- if after and key_sep in after:
- which, key = after.split(key_sep, 1)
- books = books_after(books, key, new_api)
- book_lists = [(books, 'book')]
-
- filtered_books = []
- for book_list, label in book_lists:
- book_list = book_list.only('slug', 'title', 'cover', 'cover_thumb', 'sort_key_author', 'sort_key')
- for category in book_tag_categories:
- book_list = prefetch_relations(book_list, category)
- remaining_count = count - len(filtered_books)
- new_books = [
- BookProxy(book, '%s%s%s' % (
- label, key_sep, book.slug if not new_api else book.full_sort_key()))
- for book in book_list[:remaining_count]]
- filtered_books += new_books
- if len(filtered_books) == count:
- break
-
- return QuerySetProxy(filtered_books)
-
-
-class FilterBooksHandler(BooksHandler):
- anonymous = AnonFilterBooksHandler
- fields = book_list_fields + ['key', 'liked']
-
- # hack, because piston is stupid
- @classmethod
- def liked(cls, book):
- return getattr(book, 'liked', None)
-
- def read(self, request):
- qsp = AnonFilterBooksHandler().read(request)
- likes = set(Book.tagged.with_any(request.user.tag_set.all()).values_list('id', flat=True))
- for book in qsp.list:
- book.set('liked', book.id in likes)
- return qsp
-
-
-# add categorized tags fields for Book
-def _tags_getter(category):
- @classmethod
- def get_tags(cls, book):
- return book.tags.filter(category=category)
- return get_tags
-
-
-def _tag_getter(category):
- @classmethod
- def get_tag(cls, book):
- return book.tag_unicode(category)
- return get_tag
-
-
-def add_tag_getters():
- for plural, singular in category_singular.items():
- setattr(BookDetails, plural, _tags_getter(singular))
- setattr(BookDetails, singular, _tag_getter(singular))
-
-
-add_tag_getters()
-
-
-# add fields for files in Book
-def _file_getter(book_format):
-
- @staticmethod
- def get_file(book):
- f_url = book.media_url(book_format)
- if f_url:
- return MEDIA_BASE + f_url
- else:
- return ''
- return get_file
-
-
-def add_file_getters():
- for book_format in Book.formats:
- setattr(BookDetails, book_format, _file_getter(book_format))
-
-
-add_file_getters()
-
-
-class PictureHandler(BaseHandler):
- model = Picture
- fields = ('slug', 'title')
- allowed_methods = ('POST',)
-
- def create(self, request):
- if not request.user.has_perm('picture.add_picture'):
- return rc.FORBIDDEN
-
- data = json.loads(request.POST.get('data'))
- form = PictureImportForm(data)
- if form.is_valid():
- form.save()
- return rc.CREATED
- else:
- return rc.NOT_FOUND
-
-
-class BlogEntryHandler(BaseHandler):
- model = Entry
- fields = (
- 'title', 'lead', 'body', 'place', 'time', 'image_url', 'image_thumb', 'gallery_urls', 'type', 'key', 'url')
-
- def read(self, request):
- after = request.GET.get('after')
- count = int(request.GET.get('count', 20))
- entries = Entry.published_objects.filter(in_stream=True).order_by('-first_published_at')
- if after:
- entries = entries.filter(first_published_at__lt=after)
- if count:
- entries = entries[:count]
- return entries
-
- @classmethod
- def image_url(cls, entry):
- return (WL_BASE + entry.image.url) if entry.image else None
-
- @classmethod
- def image_thumb(cls, entry):
- return MEDIA_BASE + default.backend.get_thumbnail(
- entry.image, "193x193").url if entry.image else ''
-
- @classmethod
- def gallery_urls(cls, entry):
- return [WL_BASE + photo.url() for photo in entry.photo_set.all()]
-
- @classmethod
- def key(cls, entry):
- return entry.first_published_at
-
- @classmethod
- def url(cls, entry):
- return WL_BASE + entry.get_absolute_url()
fnp / wolnelektury.git / commitdiff