apps/catalogue/tasks.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 from datetime import datetime
   6 from traceback import print_exc
   7 from celery.task import task
   8 from django.conf import settings
   9 from wolnelektury.utils import localtime_to_utc
  10
  11
  12 # TODO: move to model?
  13 def touch_tag(tag):
  14     update_dict = {
  15         'changed_at': localtime_to_utc(datetime.now()),
  16     }
  17
  18     type(tag).objects.filter(pk=tag.pk).update(**update_dict)
  19
  20
  21 @task
  22 def index_book(book_id, book_info=None, **kwargs):
  23     from catalogue.models import Book
  24     try:
  25         return Book.objects.get(id=book_id).search_index(book_info, **kwargs)
  26     except Exception, e:
  27         print "Exception during index: %s" % e
  28         print_exc()
  29         raise e
  30
  31
  32 @task(ignore_result=True, rate_limit=settings.CATALOGUE_CUSTOMPDF_RATE_LIMIT)
  33 def build_custom_pdf(book_id, customizations, file_name):
  34     """Builds a custom PDF file."""
  35     from django.core.files import File
  36     from django.core.files.storage import DefaultStorage
  37     from catalogue.models import Book
  38
  39     print "will gen %s" % DefaultStorage().path(file_name)
  40     if not DefaultStorage().exists(file_name):
  41         kwargs = {
  42             'cover': True,
  43         }
  44         if 'no-cover' in customizations:
  45             kwargs['cover'] = False
  46             customizations.remove('no-cover')
  47         pdf = Book.objects.get(pk=book_id).wldocument().as_pdf(
  48                 customizations=customizations,
  49                 morefloats=settings.LIBRARIAN_PDF_MOREFLOATS,
  50                 **kwargs)
  51         DefaultStorage().save(file_name, File(open(pdf.get_filename())))