Code layout change.

[wolnelektury.git] / src / catalogue / tasks.py

diff --git a/src/catalogue/tasks.py b/src/catalogue/tasks.py
new file mode 100644 (file)
index 0000000..a2b8be0
--- /dev/null
+++ b/src/catalogue/tasks.py
@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from datetime import datetime
+from traceback import print_exc
+from celery.task import task
+from celery.utils.log import get_task_logger
+from django.conf import settings
+from wolnelektury.utils import localtime_to_utc
+from waiter.models import WaitedFile
+
+task_logger = get_task_logger(__name__)
+
+
+# TODO: move to model?
+def touch_tag(tag):
+    update_dict = {
+        'changed_at': localtime_to_utc(datetime.now()),
+    }
+
+    type(tag).objects.filter(pk=tag.pk).update(**update_dict)
+
+
+@task
+def index_book(book_id, book_info=None, **kwargs):
+    from catalogue.models import Book
+    try:
+        return Book.objects.get(id=book_id).search_index(book_info, **kwargs)
+    except Exception, e:
+        print "Exception during index: %s" % e
+        print_exc()
+        raise e
+
+
+@task(ignore_result=True, rate_limit=settings.CATALOGUE_CUSTOMPDF_RATE_LIMIT)
+def build_custom_pdf(book_id, customizations, file_name, waiter_id=None):
+    """Builds a custom PDF file."""
+    try:
+        from django.core.files import File
+        from django.core.files.storage import DefaultStorage
+        from catalogue.models import Book
+
+        task_logger.info(DefaultStorage().path(file_name))
+        if not DefaultStorage().exists(file_name):
+            kwargs = {
+                'cover': True,
+            }
+            if 'no-cover' in customizations:
+                kwargs['cover'] = False
+                customizations.remove('no-cover')
+            pdf = Book.objects.get(pk=book_id).wldocument().as_pdf(
+                    customizations=customizations,
+                    morefloats=settings.LIBRARIAN_PDF_MOREFLOATS,
+                    **kwargs)
+            DefaultStorage().save(file_name, File(open(pdf.get_filename())))
+    finally:
+        if waiter_id is not None:
+            WaitedFile.objects.filter(pk=waiter_id).delete()