X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/357027375ff8867f42ca34bcbfb5a78b5b185fc3..6c49f9cfb80c746034d7113883c7c355f547187e:/src/api/handlers.py diff --git a/src/api/handlers.py b/src/api/handlers.py index 5fe931e69..9e75c5387 100644 --- a/src/api/handlers.py +++ b/src/api/handlers.py @@ -7,18 +7,21 @@ import json from django.contrib.sites.models import Site from django.core.urlresolvers import reverse from django.utils.functional import lazy +from django.db import models from piston.handler import AnonymousBaseHandler, BaseHandler from piston.utils import rc from sorl.thumbnail import default from catalogue.forms import BookImportForm from catalogue.models import Book, Tag, BookMedia, Fragment, Collection +from catalogue.models.tag import prefetch_relations from picture.models import Picture from picture.forms import PictureImportForm from stats.utils import piwik_track +from wolnelektury.utils import re_escape -from . import emitters # Register our emitters +from . import emitters # Register our emitters API_BASE = WL_BASE = MEDIA_BASE = lazy( lambda: u'http://' + Site.objects.get_current().domain, unicode)() @@ -39,14 +42,25 @@ for k, v in category_singular.items(): book_tag_categories = ['author', 'epoch', 'kind', 'genre'] - -def read_tags(tags, allowed): +def read_tags(tags, request, allowed): """ Reads a path of filtering tags. :param str tags: a path of category and slug pairs, like: authors/an-author/... :returns: list of Tag objects :raises: ValueError when tags can't be found """ + + def process(category, slug): + if category == 'book': + try: + books.append(Book.objects.get(slug=slug)) + except Book.DoesNotExist: + raise ValueError('Unknown book.') + try: + real_tags.append(Tag.objects.get(category=category, slug=slug)) + except Tag.DoesNotExist: + raise ValueError('Tag not found') + if not tags: return [], [] @@ -62,19 +76,16 @@ def read_tags(tags, allowed): except KeyError: raise ValueError('Unknown category.') - if not category in allowed: + if category not in allowed: raise ValueError('Category not allowed.') - - if category == 'book': - try: - books.append(Book.objects.get(slug=slug)) - except Book.DoesNotExist: - raise ValueError('Unknown book.') - - try: - real_tags.append(Tag.objects.get(category=category, slug=slug)) - except Tag.DoesNotExist: - raise ValueError('Tag not found') + process(category, slug) + + for key in request.GET: + if key in category_singular: + category = category_singular[key] + if category in allowed: + for slug in request.GET.getlist(key): + process(category, slug) return real_tags, books @@ -113,14 +124,12 @@ class BookDetails(object): @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() + return book.children.order_by('parent_number', 'sort_key') @classmethod def media(cls, book): @@ -136,6 +145,13 @@ class BookDetails(object): 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): @@ -145,7 +161,7 @@ class BookDetailHandler(BaseHandler, BookDetails): """ allowed_methods = ['GET'] fields = ['title', 'parent', 'children'] + Book.formats + [ - 'media', 'url', 'cover', 'cover_thumb'] + [ + 'media', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'simple_cover', 'fragment_data'] + [ category_plural[c] for c in book_tag_categories] @piwik_track @@ -164,7 +180,7 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): """ allowed_methods = ('GET',) model = Book - fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb'] + fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug', 'simple_thumb'] @classmethod def genres(cls, book): @@ -172,8 +188,9 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): return book.tags.filter(category='genre') @piwik_track - def read(self, request, tags=None, top_level=False, - audiobooks=False, daisy=False, pk=None): + 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 @@ -189,10 +206,17 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): return rc.NOT_FOUND try: - tags, _ancestors = read_tags(tags, allowed=book_tag_categories) + tags, _ancestors = read_tags(tags, request, allowed=book_tag_categories) except ValueError: return rc.NOT_FOUND + if 'after' in request.GET: + after = request.GET['after'] + if 'before' in request.GET: + before = request.GET['before'] + if 'count' in request.GET: + count = request.GET['count'] + if tags: if top_level: books = Book.tagged_top_level(tags) @@ -200,7 +224,8 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): else: books = Book.tagged.with_all(tags) else: - books = Book.objects.all() + books = books if books is not None else Book.objects.all() + books = books.order_by('slug') if top_level: books = books.filter(parent=None) @@ -208,11 +233,27 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): 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.exists(): - return books - else: - return rc.NOT_FOUND + return books def create(self, request, *args, **kwargs): return rc.FORBIDDEN @@ -221,7 +262,7 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): class BooksHandler(BookDetailHandler): allowed_methods = ('GET', 'POST') model = Book - fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb'] + fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug'] anonymous = AnonymousBooksHandler def create(self, request, *args, **kwargs): @@ -238,7 +279,99 @@ class BooksHandler(BookDetailHandler): class EBooksHandler(AnonymousBooksHandler): - fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats) + fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats) + ('slug',) + + +class BookProxy(models.Model): + class Meta: + managed = False + + def __init__(self, book, key): + self.book = book + self.key = key + + def __getattr__(self, item): + if item not in ('book', 'key'): + return self.book.__getattribute__(item) + else: + return self.__getattribute__(item) + + +class QuerySetProxy(models.QuerySet): + def __init__(self, l): + self.list = l + + def __iter__(self): + return iter(self.list) + + +class FilterBooksHandler(AnonymousBooksHandler): + fields = book_tag_categories + [ + 'href', 'title', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'slug', 'key'] + + def read(self, request): + key_sep = '$' + search_string = request.GET.get('search') + is_lektura = request.GET.get('lektura') + is_audiobook = request.GET.get('audiobook') + + after = request.GET.get('after') + count = int(request.GET.get('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().order_by('slug') + 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') + 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, slug = after.split(key_sep, 1) + if which == 'title': + book_lists = [(books_title.filter(slug__gt=slug), 'title')] + else: # which == 'author' + book_lists = [(books_author.filter(slug__gt=slug), 'author'), (books_title, 'title')] + else: + book_lists = [(books_author, 'author'), (books_title, 'title')] + else: + if after and key_sep in after: + which, slug = after.split(key_sep, 1) + books = books.filter(slug__gt=slug) + book_lists = [(books, 'book')] + + filtered_books = [] + for book_list, label in book_lists: + book_list = book_list.only('slug', 'title', 'cover', 'cover_thumb') + 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)) + for book in book_list[:remaining_count]] + filtered_books += new_books + if len(filtered_books) == count: + break + + return QuerySetProxy(filtered_books) # add categorized tags fields for Book @@ -247,18 +380,27 @@ def _tags_getter(category): 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 ', '.join(tag.name for tag in book.tags.filter(category=category)) + return book.tag_unicode(category) return get_tag -for plural, singular in category_singular.items(): - setattr(BookDetails, plural, _tags_getter(singular)) - setattr(BookDetails, singular, _tag_getter(singular)) + + +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(format): - field = "%s_file" % format +def _file_getter(book_format): + field = "%s_file" % book_format + @classmethod def get_file(cls, book): f = getattr(book, field) @@ -267,8 +409,13 @@ def _file_getter(format): else: return '' return get_file -for format in Book.formats: - setattr(BookDetails, format, _file_getter(format)) + + +def add_file_getters(): + for book_format in Book.formats: + setattr(BookDetails, book_format, _file_getter(book_format)) + +add_file_getters() class CollectionDetails(object): @@ -291,7 +438,6 @@ class CollectionDetails(object): return Book.objects.filter(collection.get_query()) - class CollectionDetailHandler(BaseHandler, CollectionDetails): allowed_methods = ('GET',) fields = ['url', 'title', 'description', 'books'] @@ -343,7 +489,7 @@ class TagDetailHandler(BaseHandler, TagDetails): try: category_sng = category_singular[category] - except KeyError, e: + except KeyError: return rc.NOT_FOUND try: @@ -361,7 +507,7 @@ class TagsHandler(BaseHandler, TagDetails): """ allowed_methods = ('GET',) model = Tag - fields = ['name', 'href', 'url'] + fields = ['name', 'href', 'url', 'slug'] @piwik_track def read(self, request, category=None, pk=None): @@ -374,14 +520,34 @@ class TagsHandler(BaseHandler, TagDetails): try: category_sng = category_singular[category] - except KeyError, e: + 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 + after = request.GET.get('after') + before = request.GET.get('before') + count = request.GET.get('count') + + tags = Tag.objects.filter(category=category_sng).exclude(items=None).order_by('slug') + + book_only = request.GET.get('book_only') == 'true' + picture_only = request.GET.get('picture_only') == 'true' + if book_only: + tags = tags.filter(for_books=True) + if picture_only: + tags = tags.filter(for_pictures=True) + + if after: + tags = tags.filter(slug__gt=after) + if before: + tags = tags.filter(slug__lt=before) + + if count: + if before: + tags = list(reversed(tags.order_by('-slug')[:count])) + else: + tags = tags[:count] + + return tags class FragmentDetails(object): @@ -391,8 +557,7 @@ class FragmentDetails(object): def href(cls, fragment): """ Returns URI in the API for the fragment. """ - return API_BASE + reverse("api_fragment", - args=[fragment.book.slug, fragment.anchor]) + return API_BASE + reverse("api_fragment", args=[fragment.book.slug, fragment.anchor]) @classmethod def url(cls, fragment): @@ -430,7 +595,7 @@ class FragmentsHandler(BaseHandler, FragmentDetails): fields = ['book', 'url', 'anchor', 'href'] allowed_methods = ('GET',) - categories = set(['author', 'epoch', 'kind', 'genre', 'book', 'theme']) + categories = {'author', 'epoch', 'kind', 'genre', 'book', 'theme'} @piwik_track def read(self, request, tags):