tags/infos/fixed viewer

[wolnelektury.git] / apps / api / handlers.py

diff --git a/apps/api/handlers.py b/apps/api/handlers.py
index f99dd90..da5c0ed 100644 (file)
--- a/apps/api/handlers.py
+++ b/apps/api/handlers.py
@@ -4,18 +4,22 @@
 
 from datetime import datetime, timedelta
 import json
 
 from datetime import datetime, timedelta
 import json

+from urlparse import urljoin

 
 from django.conf import settings
 from django.contrib.sites.models import Site
 
 from django.conf import settings
 from django.contrib.sites.models import Site

+from django.core.cache import get_cache

 from django.core.urlresolvers import reverse
 from piston.handler import AnonymousBaseHandler, BaseHandler
 from piston.utils import rc
 from django.core.urlresolvers import reverse
 from piston.handler import AnonymousBaseHandler, BaseHandler
 from piston.utils import rc

+from sorl.thumbnail import default

 
 from api.helpers import timestamp
 from api.models import Deleted
 from catalogue.forms import BookImportForm
 
 from api.helpers import timestamp
 from api.models import Deleted
 from catalogue.forms import BookImportForm

-from catalogue.models import Book, Tag, BookMedia, Fragment
+from catalogue.models import Book, Tag, BookMedia, Fragment, Collection

 from picture.models import Picture
 from picture.models import Picture

+from picture.forms import PictureImportForm

 
 from stats.utils import piwik_track
 
 
 from stats.utils import piwik_track
 


@@ -34,6 +38,9 @@ category_plural={}
 for k, v in category_singular.items():
     category_plural[v] = k
 
 for k, v in category_singular.items():
     category_plural[v] = k
 

+book_tag_categories = ['author', 'epoch', 'kind', 'genre']
+
+

 
 def read_tags(tags, allowed):
     """ Reads a path of filtering tags.
 
 def read_tags(tags, allowed):
     """ Reads a path of filtering tags.


@@ -77,7 +84,7 @@ class BookMediaHandler(BaseHandler):
     """ Responsible for representing media in Books. """
 
     model = BookMedia
     """ Responsible for representing media in Books. """
 
     model = BookMedia

-    fields = ['name', 'type', 'url']
+    fields = ['name', 'type', 'url', 'artist', 'director']

 
     @classmethod
     def url(cls, media):
 
     @classmethod
     def url(cls, media):


@@ -85,57 +92,88 @@ class BookMediaHandler(BaseHandler):
 
         return MEDIA_BASE + media.file.url
 
 
         return MEDIA_BASE + media.file.url
 

+    @classmethod
+    def artist(cls, media):
+        return media.extra_info.get('artist_name', '')

 
 

-class BookDetailHandler(BaseHandler):
-    """ Main handler for Book objects.
+    @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])

 
 

-    Responsible for lists of Book objects
-    and fields used for representing Books.
+    @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 ''
+
+
+
+class BookDetailHandler(BaseHandler, BookDetails):
+    """ Main handler for Book objects.
+
+    Responsible for single Book details.

     """
     allowed_methods = ['GET']
     """
     allowed_methods = ['GET']

-    fields = ['title', 'parent'] + Book.formats + [
-        'media', 'url'] + category_singular.keys()
+    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. """
 
     @piwik_track
     def read(self, request, book):
         """ Returns details of a book, identified by a slug and lang. """

-        kwargs = Book.split_urlid(book)
-        if not kwargs:
-            return rc.NOT_FOUND
-

         try:
         try:

-            return Book.objects.get(**kwargs)
+            return Book.objects.get(slug=book)

         except Book.DoesNotExist:
             return rc.NOT_FOUND
 
 
         except Book.DoesNotExist:
             return rc.NOT_FOUND
 
 

-class AnonymousBooksHandler(AnonymousBaseHandler):
+class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails):

     """ Main handler for Book objects.
 
     """ Main handler for Book objects.
 

-    Responsible for lists of Book objects
-    and fields used for representing Books.
-
+    Responsible for lists of Book objects.

     """
     allowed_methods = ('GET',)
     model = Book
     """
     allowed_methods = ('GET',)
     model = Book

-    fields = ['href', 'title']
-
-    categories = set(['author', 'epoch', 'kind', 'genre'])
+    fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb']

 
     @classmethod
 
     @classmethod

-    def href(cls, book):
-        """ Returns an URI for a Book in the API. """
-        return API_BASE + reverse("api_book", args=[book.urlid()])
-
-    @classmethod
-    def url(cls, book):
-        """ Returns Book's URL on the site. """
-
-        return WL_BASE + book.get_absolute_url()
+    def genres(cls, book):
+        """ Returns all media for a book. """
+        return book.tags.filter(category='genre')

 
     @piwik_track
 
     @piwik_track

-    def read(self, request, tags, top_level=False):
+    def read(self, request, tags, top_level=False,
+                audiobooks=False, daisy=False):

         """ Lists all books with given tags.
 
         :param tags: filtering tags; should be a path of categories
         """ Lists all books with given tags.
 
         :param tags: filtering tags; should be a path of categories


@@ -144,7 +182,11 @@ class AnonymousBooksHandler(AnonymousBaseHandler):
              it's children are aren't. By default all books matching the tags
              are returned.
         """
              it's children are aren't. By default all books matching the tags
              are returned.
         """

-        tags = read_tags(tags, allowed=self.categories)
+        try:
+            tags = read_tags(tags, allowed=book_tag_categories)
+        except ValueError:
+            return rc.NOT_FOUND
+

         if tags:
             if top_level:
                 books = Book.tagged_top_level(tags)
         if tags:
             if top_level:
                 books = Book.tagged_top_level(tags)


@@ -153,28 +195,30 @@ class AnonymousBooksHandler(AnonymousBaseHandler):
                 books = Book.tagged.with_all(tags)
         else:
             books = Book.objects.all()
                 books = Book.tagged.with_all(tags)
         else:
             books = Book.objects.all()

+            
+        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 books.exists():
             return books
         else:
             return rc.NOT_FOUND
 
 
         if books.exists():
             return books
         else:
             return rc.NOT_FOUND
 

-    def create(self, request, tags, top_level=False):
-        return 'aaa'
-
-    @classmethod
-    def media(self, book):
-        """ Returns all media for a book. """
-
-        return book.media.all()
+    def create(self, request, *args, **kwargs):
+        return rc.FORBIDDEN

 
 
 
 

-class BooksHandler(BaseHandler):
+class BooksHandler(BookDetailHandler):
+    allowed_methods = ('GET', 'POST')

     model = Book
     model = Book

-    fields = ('slug', 'title')
+    fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb']

     anonymous = AnonymousBooksHandler
 
     anonymous = AnonymousBooksHandler
 

-    def create(self, request, tags, top_level=False):
+    def create(self, request, *args, **kwargs):

         if not request.user.has_perm('catalogue.add_book'):
             return rc.FORBIDDEN
 
         if not request.user.has_perm('catalogue.add_book'):
             return rc.FORBIDDEN
 


@@ -186,14 +230,25 @@ class BooksHandler(BaseHandler):
         else:
             return rc.NOT_FOUND
 
         else:
             return rc.NOT_FOUND
 

+
+class EBooksHandler(AnonymousBooksHandler):
+    fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats)
+
+

 # 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
 # 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 ", ".join(t[0] for t in book.related_info()['tags'].get(category, []))
+    return get_tag

 for plural, singular in category_singular.items():
 for plural, singular in category_singular.items():

-    setattr(BooksHandler, plural, _tags_getter(singular))
+    setattr(BookDetails, plural, _tags_getter(singular))
+    setattr(BookDetails, singular, _tag_getter(singular))

 
 # add fields for files in Book
 def _file_getter(format):
 
 # add fields for files in Book
 def _file_getter(format):


@@ -207,13 +262,75 @@ def _file_getter(format):
             return ''
     return get_file
 for format in Book.formats:
             return ''
     return get_file
 for format in Book.formats:

-    setattr(BooksHandler, format, _file_getter(format))
+    setattr(BookDetails, format, _file_getter(format))
+
+
+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])

 
 

-class TagDetailHandler(BaseHandler):
+    @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):
+        print 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. """
 
     """ Responsible for details of a single Tag object. """
 

-    fields = ['name', 'sort_key', 'description']
+    fields = ['name', 'url', 'sort_key', 'description']

 
     @piwik_track
     def read(self, request, category, slug):
 
     @piwik_track
     def read(self, request, category, slug):


@@ -230,7 +347,7 @@ class TagDetailHandler(BaseHandler):
             return rc.NOT_FOUND
 
 
             return rc.NOT_FOUND
 
 

-class TagsHandler(BaseHandler):
+class TagsHandler(BaseHandler, TagDetails):

     """ Main handler for Tag objects.
 
     Responsible for lists of Tag objects
     """ Main handler for Tag objects.
 
     Responsible for lists of Tag objects


@@ -239,7 +356,7 @@ class TagsHandler(BaseHandler):
     """
     allowed_methods = ('GET',)
     model = Tag
     """
     allowed_methods = ('GET',)
     model = Tag

-    fields = ['name', 'href']
+    fields = ['name', 'href', 'url']

 
     @piwik_track
     def read(self, request, category):
 
     @piwik_track
     def read(self, request, category):


@@ -257,34 +374,42 @@ class TagsHandler(BaseHandler):
             return rc.NOT_FOUND
 
 
             return rc.NOT_FOUND
 
 

+class FragmentDetails(object):
+    """Custom Fragment fields."""
+

     @classmethod
     @classmethod

-    def href(cls, tag):
-        """ Returns URI in the API for the tag. """
+    def href(cls, fragment):
+        """ Returns URI in the API for the fragment. """

 
 

-        return API_BASE + reverse("api_tag", args=[category_plural[tag.category], tag.slug])
+        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):
+
+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. """
     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. """

-        kwargs = Book.split_urlid(book)
-        if not kwargs:
-            return rc.NOT_FOUND
-
-        fragment_kwargs = {}
-        for field, value in kwargs.items():
-            fragment_kwargs['book__' + field] = value
-

         try:
         try:

-            return Fragment.objects.get(anchor=anchor, **fragment_kwargs)
+            return Fragment.objects.get(book__slug=book, anchor=anchor)

         except Fragment.DoesNotExist:
             return rc.NOT_FOUND
 
 
         except Fragment.DoesNotExist:
             return rc.NOT_FOUND
 
 

-class FragmentsHandler(BaseHandler):
+class FragmentsHandler(BaseHandler, FragmentDetails):

     """ Main handler for Fragments.
 
     Responsible for lists of Fragment objects
     """ Main handler for Fragments.
 
     Responsible for lists of Fragment objects


@@ -292,7 +417,7 @@ class FragmentsHandler(BaseHandler):
 
     """
     model = Fragment
 
     """
     model = Fragment

-    fields = ['book', 'anchor', 'href']
+    fields = ['book', 'url', 'anchor', 'href']

     allowed_methods = ('GET',)
 
     categories = set(['author', 'epoch', 'kind', 'genre', 'book', 'theme'])
     allowed_methods = ('GET',)
 
     categories = set(['author', 'epoch', 'kind', 'genre', 'book', 'theme'])


@@ -305,32 +430,16 @@ class FragmentsHandler(BaseHandler):
              books/book-slug/authors/an-author/themes/a-theme/
 
         """
              books/book-slug/authors/an-author/themes/a-theme/
 
         """

-        tags = read_tags(tags, allowed=self.categories)
+        try:
+            tags = 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
 
         fragments = Fragment.tagged.with_all(tags).select_related('book')
         if fragments.exists():
             return fragments
         else:
             return rc.NOT_FOUND
 

-    @classmethod
-    def href(cls, fragment):
-        """ Returns URI in the API for the fragment. """
-
-        return API_BASE + reverse("api_fragment", args=[fragment.book.urlid(), 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')
-
-

 
 
 # Changes handlers
 
 
 # Changes handlers


@@ -364,7 +473,7 @@ class CatalogueHandler(BaseHandler):
     def book_dict(book, fields=None):
         all_fields = ['url', 'title', 'description',
                       'gazeta_link', 'wiki_link',
     def book_dict(book, fields=None):
         all_fields = ['url', 'title', 'description',
                       'gazeta_link', 'wiki_link',

-                      ] + Book.formats + BookMedia.formats + [
+                      ] + Book.formats + BookMedia.formats.keys() + [

                       'parent', 'parent_number',
                       'tags',
                       'license', 'license_description', 'source_name',
                       'parent', 'parent_number',
                       'tags',
                       'license', 'license_description', 'source_name',


@@ -376,7 +485,7 @@ class CatalogueHandler(BaseHandler):
         else:
             fields = all_fields
 
         else:
             fields = all_fields
 

-        extra_info = book.get_extra_info_value()
+        extra_info = book.extra_info

 
         obj = {}
         for field in fields:
 
         obj = {}
         for field in fields:


@@ -391,7 +500,7 @@ class CatalogueHandler(BaseHandler):
 
             elif field in BookMedia.formats:
                 media = []
 
             elif field in BookMedia.formats:
                 media = []

-                for m in book.media.filter(type=field):
+                for m in book.media.filter(type=field).iterator():

                     media.append({
                         'url': m.file.url,
                         'size': m.file.size,
                     media.append({
                         'url': m.file.url,
                         'size': m.file.size,


@@ -403,10 +512,10 @@ class CatalogueHandler(BaseHandler):
                 obj[field] = book.get_absolute_url()
 
             elif field == 'tags':
                 obj[field] = book.get_absolute_url()
 
             elif field == 'tags':

-                obj[field] = [t.id for t in book.tags.exclude(category__in=('book', 'set'))]
+                obj[field] = [t.id for t in book.tags.exclude(category__in=('book', 'set')).iterator()]

 
             elif field == 'author':
 
             elif field == 'author':

-                obj[field] = ", ".join(t.name for t in book.tags.filter(category='author'))
+                obj[field] = ", ".join(t.name for t in book.tags.filter(category='author').iterator())

 
             elif field == 'parent':
                 obj[field] = book.parent_id
 
             elif field == 'parent':
                 obj[field] = book.parent_id


@@ -443,7 +552,7 @@ class CatalogueHandler(BaseHandler):
 
         last_change = since
         for book in Book.objects.filter(changed_at__gte=since,
 
         last_change = since
         for book in Book.objects.filter(changed_at__gte=since,

-                    changed_at__lt=until):
+                    changed_at__lt=until).iterator():

             book_d = cls.book_dict(book, fields)
             updated.append(book_d)
         if updated:
             book_d = cls.book_dict(book, fields)
             updated.append(book_d)
         if updated:


@@ -452,7 +561,7 @@ class CatalogueHandler(BaseHandler):
         for book in Deleted.objects.filter(content_type=Book, 
                     deleted_at__gte=since,
                     deleted_at__lt=until,
         for book in Deleted.objects.filter(content_type=Book, 
                     deleted_at__gte=since,
                     deleted_at__lt=until,

-                    created_at__lt=since):
+                    created_at__lt=since).iterator():

             deleted.append(book.id)
         if deleted:
             changes['deleted'] = deleted
             deleted.append(book.id)
         if deleted:
             changes['deleted'] = deleted


@@ -478,7 +587,7 @@ class CatalogueHandler(BaseHandler):
                 obj[field] = tag.get_absolute_url()
 
             elif field == 'books':
                 obj[field] = tag.get_absolute_url()
 
             elif field == 'books':

-                obj[field] = [b.id for b in Book.tagged_top_level([tag])]
+                obj[field] = [b.id for b in Book.tagged_top_level([tag]).iterator()]

 
             elif field == 'sort_key':
                 obj[field] = tag.sort_key
 
             elif field == 'sort_key':
                 obj[field] = tag.sort_key


@@ -516,7 +625,7 @@ class CatalogueHandler(BaseHandler):
 
         for tag in Tag.objects.filter(category__in=categories, 
                     changed_at__gte=since,
 
         for tag in Tag.objects.filter(category__in=categories, 
                     changed_at__gte=since,

-                    changed_at__lt=until):
+                    changed_at__lt=until).iterator():

             # only serve non-empty tags
             if tag.book_count:
                 tag_d = cls.tag_dict(tag, fields)
             # only serve non-empty tags
             if tag.book_count:
                 tag_d = cls.tag_dict(tag, fields)


@@ -530,7 +639,7 @@ class CatalogueHandler(BaseHandler):
                 content_type=Tag, 
                     deleted_at__gte=since,
                     deleted_at__lt=until,
                 content_type=Tag, 
                     deleted_at__gte=since,
                     deleted_at__lt=until,

-                    created_at__lt=since):
+                    created_at__lt=since).iterator():

             deleted.append(tag.id)
         if deleted:
             changes['deleted'] = deleted
             deleted.append(tag.id)
         if deleted:
             changes['deleted'] = deleted


@@ -541,6 +650,16 @@ class CatalogueHandler(BaseHandler):
     def changes(cls, request=None, since=0, until=None, book_fields=None,
                 tag_fields=None, tag_categories=None):
         until = cls.until(until)
     def changes(cls, request=None, since=0, until=None, book_fields=None,
                 tag_fields=None, tag_categories=None):
         until = cls.until(until)

+        since = int(since)
+
+        if not since:
+            cache = get_cache('api')
+            key = hash((book_fields, tag_fields, tag_categories,
+                    tuple(sorted(request.GET.items()))
+                  ))
+            value = cache.get(key)
+            if value is not None:
+                return value

 
         changes = {
             'time_checked': timestamp(until)
 
         changes = {
             'time_checked': timestamp(until)


@@ -556,6 +675,10 @@ class CatalogueHandler(BaseHandler):
                 if field == 'time_checked':
                     continue
                 changes.setdefault(field, {})[model] = changes_by_type[model][field]
                 if field == 'time_checked':
                     continue
                 changes.setdefault(field, {})[model] = changes_by_type[model][field]

+
+        if not since:
+            cache.set(key, changes)
+

         return changes
 
 
         return changes
 
 


@@ -589,11 +712,11 @@ class PictureHandler(BaseHandler):
     allowed_methods = ('POST',)
 
     def create(self, request):
     allowed_methods = ('POST',)
 
     def create(self, request):

-        if not request.user.has_perm('catalogue.add_book'):
+        if not request.user.has_perm('picture.add_picture'):

             return rc.FORBIDDEN
 
         data = json.loads(request.POST.get('data'))
             return rc.FORBIDDEN
 
         data = json.loads(request.POST.get('data'))

-        form = BookImportForm(data)
+        form = PictureImportForm(data)

         if form.is_valid():
             form.save()
             return rc.CREATED
         if form.is_valid():
             form.save()
             return rc.CREATED