-
-
-# RESTful handlers
-
-
-class BookMediaHandler(BaseHandler):
- """ Responsible for representing media in Books. """
-
- model = BookMedia
- fields = ['name', 'type', 'url', 'artist', 'director']
-
- @classmethod
- def url(cls, media):
- """ Link to media on site. """
-
- return MEDIA_BASE + media.file.url
-
- @classmethod
- def artist(cls, media):
- return media.extra_info.get('artist_name', '')
-
- @classmethod
- def director(cls, media):
- return media.extra_info.get('director_name', '')
-
-
-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("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.all()
-
- @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 cover_source_image(cls, book):
- url = book.cover_source()
- return url.rstrip('/') + '/file/'
-
-
-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'] + [
- 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_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug']
-
- @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, before=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:
- try:
- return Book.objects.get(pk=pk)
- except Book.DoesNotExist:
- return rc.NOT_FOUND
-
- try:
- tags, _ancestors = read_tags(tags, allowed=book_tag_categories)
- except ValueError:
- return rc.NOT_FOUND
-
- 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 = books.order_by('slug')
-
- 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.filter(slug__gt=after)
- if before:
- books = books.filter(slug__lt=before)
-
- books = books.only('slug', 'title', 'cover', 'cover_thumb')
- for category in book_tag_categories:
- books = prefetch_relations(books, category)
-
- if count:
- if before:
- books = list(reversed(books.order_by('-slug')[:count]))
- else:
- books = books[:count]
-
- if books:
- return books
- else:
- return rc.NOT_FOUND
-
- def create(self, request, *args, **kwargs):
- return rc.FORBIDDEN
-
-
-class BooksHandler(BookDetailHandler):
- allowed_methods = ('GET', 'POST')
- model = Book
- fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug']
- anonymous = AnonymousBooksHandler
-
- 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 FilterBooksHandler(AnonymousBooksHandler):
- fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug', 'cover_source_image']
-
- def read(self, request, title_part=None, author_part=None, is_lektura=None, is_audiobook=None,
- after=None, before=None, count=None):
- if count is None:
- count = 50
- if is_lektura in ('true', 'false'):
- is_lektura = is_lektura == 'true'
- else:
- is_lektura = None
- if is_audiobook in ('true', 'false'):
- is_audiobook = is_audiobook == 'true'
- books = Book.objects.distinct()
- if title_part:
- books = books.filter(title__iregex='\m' + title_part)
- if author_part is not None:
- books = books.filter(cached_author__iregex='\m' + author_part)
- 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')
- return super(FilterBooksHandler, self).read(request, books=books, after=after, before=before, count=count)
-
-
-# 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):
- field = "%s_file" % book_format
-
- @classmethod
- def get_file(cls, book):
- f = getattr(book, field)
- if f:
- 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 CollectionDetails(object):
- """Custom Collection fields."""
-
- @classmethod
- def href(cls, collection):
- """ Returns URI in the API for the collection. """
-
- return API_BASE + reverse("api_collection", args=[collection.slug])
-
- @classmethod
- def url(cls, collection):
- """ Returns URL on the site. """
-
- return WL_BASE + collection.get_absolute_url()
-
- @classmethod
- def books(cls, collection):
- return Book.objects.filter(collection.get_query())
-
-
-class CollectionDetailHandler(BaseHandler, CollectionDetails):
- allowed_methods = ('GET',)
- fields = ['url', 'title', 'description', 'books']
-
- @piwik_track
- def read(self, request, slug):
- """ Returns details of a collection, identified by slug. """
- try:
- return Collection.objects.get(slug=slug)
- except Collection.DoesNotExist:
- return rc.NOT_FOUND
-
-
-class CollectionsHandler(BaseHandler, CollectionDetails):
- allowed_methods = ('GET',)
- model = Collection
- fields = ['url', 'href', 'title']
-
- @piwik_track
- def read(self, request):
- """ Returns all collections. """
- return Collection.objects.all()
-
-
-class TagDetails(object):
- """Custom Tag fields."""
-
- @classmethod
- def href(cls, tag):
- """ Returns URI in the API for the tag. """
-
- return API_BASE + reverse("api_tag", args=[category_plural[tag.category], tag.slug])
-
- @classmethod
- def url(cls, tag):
- """ Returns URL on the site. """
-
- return WL_BASE + tag.get_absolute_url()
-
-
-class TagDetailHandler(BaseHandler, TagDetails):
- """ Responsible for details of a single Tag object. """
-
- fields = ['name', 'url', 'sort_key', 'description']
-
- @piwik_track
- def read(self, request, category, slug):
- """ Returns details of a tag, identified by category and slug. """
-
- try:
- category_sng = category_singular[category]
- except KeyError:
- return rc.NOT_FOUND
-
- try:
- return Tag.objects.get(category=category_sng, slug=slug)
- except Tag.DoesNotExist:
- return rc.NOT_FOUND
-
-
-class TagsHandler(BaseHandler, TagDetails):
- """ Main handler for Tag objects.
-
- Responsible for lists of Tag objects
- and fields used for representing Tags.
-
- """
- allowed_methods = ('GET',)
- model = Tag
- fields = ['name', 'href', 'url']
-
- @piwik_track
- def read(self, request, category=None, pk=None):
- """ Lists all tags in the category (eg. all themes). """
- if pk is not None:
- try:
- return Tag.objects.exclude(category='set').get(pk=pk)
- except Book.DoesNotExist:
- return rc.NOT_FOUND
-
- try:
- category_sng = category_singular[category]
- except KeyError:
- return rc.NOT_FOUND
-
- tags = Tag.objects.filter(category=category_sng).exclude(items=None)
- if tags.exists():
- return tags
- else:
- return rc.NOT_FOUND
-
-
-class FragmentDetails(object):
- """Custom Fragment fields."""
-
- @classmethod
- def href(cls, fragment):
- """ Returns URI in the API for the fragment. """
-
- return API_BASE + reverse("api_fragment", args=[fragment.book.slug, fragment.anchor])
-
- @classmethod
- def url(cls, fragment):
- """ Returns URL on the site for the fragment. """
-
- return WL_BASE + fragment.get_absolute_url()
-
- @classmethod
- def themes(cls, fragment):
- """ Returns a list of theme tags for the fragment. """
-
- return fragment.tags.filter(category='theme')
-
-
-class FragmentDetailHandler(BaseHandler, FragmentDetails):
- fields = ['book', 'anchor', 'text', 'url', 'themes']
-
- @piwik_track
- def read(self, request, book, anchor):
- """ Returns details of a fragment, identified by book slug and anchor. """
- try:
- return Fragment.objects.get(book__slug=book, anchor=anchor)
- except Fragment.DoesNotExist:
- return rc.NOT_FOUND
-
-
-class FragmentsHandler(BaseHandler, FragmentDetails):
- """ Main handler for Fragments.
-
- Responsible for lists of Fragment objects
- and fields used for representing Fragments.
-
- """
- model = Fragment
- fields = ['book', 'url', 'anchor', 'href']
- allowed_methods = ('GET',)
-
- categories = {'author', 'epoch', 'kind', 'genre', 'book', 'theme'}
-
- @piwik_track
- def read(self, request, tags):
- """ Lists all fragments with given book, tags, themes.
-
- :param tags: should be a path of categories and slugs, i.e.:
- books/book-slug/authors/an-author/themes/a-theme/
-
- """
- try:
- tags, ancestors = read_tags(tags, allowed=self.categories)
- except ValueError:
- return rc.NOT_FOUND
- fragments = Fragment.tagged.with_all(tags).select_related('book')
- if fragments.exists():
- return fragments
- else:
- return rc.NOT_FOUND
-
-
-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
fnp / wolnelektury.git / blobdiff