reading state api

[wolnelektury.git] / src / catalogue / models / book.py

diff --git a/src/catalogue/models/book.py b/src/catalogue/models/book.py
index e5ab5e4..027d272 100644 (file)
--- a/src/catalogue/models/book.py
+++ b/src/catalogue/models/book.py
@@ -3,6 +3,7 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from collections import OrderedDict
+from datetime import date, timedelta
 from random import randint
 import os.path
 import re
@@ -18,6 +19,8 @@ from django.utils.deconstruct import deconstructible
 import jsonfield
 from fnpdjango.storage import BofhFileSystemStorage
 from ssify import flush_ssi_includes
+
+from librarian.html import transform_abstrakt
 from newtagging import managers
 from catalogue import constants
 from catalogue.fields import EbookField
@@ -60,6 +63,7 @@ class Book(models.Model):
     common_slug = models.SlugField(_('slug'), max_length=120, db_index=True)
     language = models.CharField(_('language code'), max_length=3, db_index=True, default=app_settings.DEFAULT_LANGUAGE)
     description = models.TextField(_('description'), blank=True)
+    abstract = models.TextField(_('abstract'), blank=True)
     created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
     changed_at = models.DateTimeField(_('change date'), auto_now=True, db_index=True)
     parent_number = models.IntegerField(_('parent number'), default=0)
@@ -68,6 +72,8 @@ class Book(models.Model):
     wiki_link = models.CharField(blank=True, max_length=240)
     print_on_demand = models.BooleanField(_('print on demand'), default=False)
     recommended = models.BooleanField(_('recommended'), default=False)
+    preview = models.BooleanField(_('preview'), default=False)
+    preview_until = models.DateField(_('preview until'), blank=True, null=True)
 
     # files generated during publication
     cover = EbookField(
@@ -235,6 +241,37 @@ class Book(models.Model):
     def get_daisy(self):
         return self.get_media("daisy")
 
+    def media_url(self, format_):
+        media = self.get_media(format_)
+        if media:
+            if self.preview:
+                return reverse('embargo_link', kwargs={'slug': self.slug, 'format_': format_})
+            else:
+                return media.url
+        else:
+            return None
+
+    def html_url(self):
+        return self.media_url('html')
+
+    def pdf_url(self):
+        return self.media_url('pdf')
+
+    def epub_url(self):
+        return self.media_url('epub')
+
+    def mobi_url(self):
+        return self.media_url('mobi')
+
+    def txt_url(self):
+        return self.media_url('txt')
+
+    def fb2_url(self):
+        return self.media_url('fb2')
+
+    def xml_url(self):
+        return self.media_url('xml')
+
     def has_description(self):
         return len(self.description) > 0
     has_description.short_description = _('description')
@@ -307,7 +344,7 @@ class Book(models.Model):
                 format_)
 
         field_name = "%s_file" % format_
-        books = Book.objects.filter(parent=None).exclude(**{field_name: ""})
+        books = Book.objects.filter(parent=None).exclude(**{field_name: ""}).exclude(preview=True)
         paths = [(pretty_file_name(b), getattr(b, field_name).path) for b in books.iterator()]
         return create_zip(paths, app_settings.FORMAT_ZIPS[format_])
 
@@ -330,6 +367,7 @@ class Book(models.Model):
             index.index.rollback()
             raise e
 
+    # will make problems in conjunction with paid previews
     def download_pictures(self, remote_gallery_url):
         gallery_path = self.gallery_path()
         # delete previous files, so we don't include old files in ebooks
@@ -345,6 +383,13 @@ class Book(models.Model):
                 ilustr_path = os.path.join(gallery_path, ilustr_src)
                 urllib.urlretrieve('%s/%s' % (remote_gallery_url, ilustr_src), ilustr_path)
 
+    def load_abstract(self):
+        abstract = self.wldocument(parse_dublincore=False).edoc.getroot().find('.//abstrakt')
+        if abstract is not None:
+            self.abstract = transform_abstrakt(abstract)
+        else:
+            self.abstract = ''
+
     @classmethod
     def from_xml_file(cls, xml_file, **kwargs):
         from django.core.files import File
@@ -363,7 +408,7 @@ class Book(models.Model):
 
     @classmethod
     def from_text_and_meta(cls, raw_file, book_info, overwrite=False, dont_build=None, search_index=True,
-                           search_index_tags=True, remote_gallery_url=None):
+                           search_index_tags=True, remote_gallery_url=None, days=0):
         if dont_build is None:
             dont_build = set()
         dont_build = set.union(set(dont_build), set(app_settings.DONT_BUILD))
@@ -386,6 +431,9 @@ class Book(models.Model):
         if created:
             book_shelves = []
             old_cover = None
+            book.preview = bool(days)
+            if book.preview:
+                book.preview_until = date.today() + timedelta(days)
         else:
             if not overwrite:
                 raise Book.AlreadyExists(_('Book %s already exists') % book_slug)
@@ -395,6 +443,8 @@ class Book(models.Model):
 
         # Save XML file
         book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
+        if book.preview:
+            book.xml_file.set_readable(False)
 
         book.language = book_info.language
         book.title = book_info.title
@@ -403,6 +453,7 @@ class Book(models.Model):
         else:
             book.common_slug = book.slug
         book.extra_info = book_info.to_dict()
+        book.load_abstract()
         book.save()
 
         meta_tags = Tag.tags_from_info(book_info)