From: Radek Czajka <radoslaw.czajka@nowoczesnapolska.org.pl>
Date: Tue, 21 Aug 2012 12:35:42 +0000 (+0200)
Subject: - inheriting covers after parents,
X-Git-Url: https://git.mdrn.pl/wolnelektury.git/commitdiff_plain/1405761d13e0ba62db4b1f9a9d5fa1472142b6d0

- inheriting covers after parents,
- DRY: move build methods to relevant fields, simplify adding formats (in catalogue.constants)
- add CATALOGUE_{DONT_BUILD,FORMAT_ZIPS} instead of many NO_BUILD_* and ALL_*_ZIP settings, move to catalogue.app_settings
- catalogue.management.importbooks: one option for skipping formats
- use override_settings in tests
- minor test fixes
---

diff --git a/apps/catalogue/__init__.py b/apps/catalogue/__init__.py
index e69de29bb..2d0d89dd1 100644
--- a/apps/catalogue/__init__.py
+++ b/apps/catalogue/__init__.py
@@ -0,0 +1,45 @@
+# -*- 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.
+#
+import logging
+from django.conf import settings as settings
+from catalogue.utils import AppSettings
+
+
+class Settings(AppSettings):
+    """Default settings for catalogue app."""
+    DEFAULT_LANGUAGE = u'pol'
+    # PDF needs TeXML + XeLaTeX, MOBI needs Calibre.
+    DONT_BUILD = {'pdf', 'mobi'}
+    FORMAT_ZIPS = {
+            'epub': 'wolnelektury_pl_epub',
+            'pdf': 'wolnelektury_pl_pdf',
+            'mobi': 'wolnelektury_pl_mobi',
+            'fb2': 'wolnelektury_pl_fb2',
+        }
+
+    def _more_DONT_BUILD(self, value):
+        for format_ in ['cover', 'pdf', 'epub', 'mobi', 'fb2', 'txt']:
+            attname = 'NO_BUILD_%s' % format_.upper()
+            if hasattr(settings, attname):
+                logging.warn("%s is deprecated, "
+                        "use CATALOGUE_DONT_BUILD instead", attname)
+                if getattr(settings, attname):
+                    value.add(format_)
+                else:
+                    value.remove(format_)
+        return value
+
+    def _more_FORMAT_ZIPS(self, value):
+        for format_ in ['epub', 'pdf', 'mobi', 'fb2']:
+            attname = 'ALL_%s_ZIP' % format_.upper()
+            if hasattr(settings, attname):
+                logging.warn("%s is deprecated, "
+                        "use CATALOGUE_FORMAT_ZIPS[%s] instead", 
+                            attname, format_)
+                value[format_] = getattr(settings, attname)
+        return value
+
+
+app_settings = Settings('CATALOGUE')
diff --git a/apps/catalogue/constants.py b/apps/catalogue/constants.py
index e1c92f8cd..1ad0b1b5e 100644
--- a/apps/catalogue/constants.py
+++ b/apps/catalogue/constants.py
@@ -10,3 +10,12 @@ LICENSES = {
         'description': _('Creative Commons Attribution-ShareAlike 3.0 Unported'),
     },
 }
+
+# Those will be generated only for books with own HTML.
+EBOOK_FORMATS_WITHOUT_CHILDREN = ['txt', 'fb2']
+# Those will be generated for all books.
+EBOOK_FORMATS_WITH_CHILDREN = ['pdf', 'epub', 'mobi']
+# Those will be generated when inherited cover changes.
+EBOOK_FORMATS_WITH_COVERS = ['mobi']
+
+EBOOK_FORMATS = EBOOK_FORMATS_WITHOUT_CHILDREN + EBOOK_FORMATS_WITH_CHILDREN
diff --git a/apps/catalogue/fields.py b/apps/catalogue/fields.py
index 5ab78eb03..2c4e4d57b 100644
--- a/apps/catalogue/fields.py
+++ b/apps/catalogue/fields.py
@@ -2,8 +2,182 @@
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
+from django.conf import settings
+from django.core.files import File
 from django.db import models
 from django.db.models.fields.files import FieldFile
+from catalogue import app_settings
+from catalogue.utils import remove_zip, truncate_html_words
+from celery import Task
+from celery.task import task
+from waiter.utils import clear_cache
+
+
+class EbookFieldFile(FieldFile):
+    """Represents contents of an ebook file field."""
+
+    def build(self):
+        """Build the ebook immediately."""
+        return self.field.builder(self)
+
+    def build_delay(self):
+        """Builds the ebook in a delayed task."""
+        return self.field.builder.delay(self)
+
+
+class EbookField(models.FileField):
+    """Represents an ebook file field, attachable to a model."""
+    attr_class = EbookFieldFile
+
+    def __init__(self, format_name, *args, **kwargs):
+        super(EbookField, self).__init__(*args, **kwargs)
+        self.format_name = format_name
+
+    @property
+    def builder(self):
+        """Finds a celery task suitable for the format of the field."""
+        return BuildEbook.for_format(self.format_name)
+
+    def contribute_to_class(self, cls, name):
+        super(EbookField, self).contribute_to_class(cls, name)
+
+        def has(model_instance):
+            return bool(getattr(model_instance, self.attname, None))
+        has.__doc__ = None
+        has.__name__ = "has_%s" % self.attname
+        has.short_description = self.name
+        has.boolean = True
+        setattr(cls, 'has_%s' % self.attname, has)
+
+
+class BuildEbook(Task):
+    formats = {}
+
+    @classmethod
+    def register(cls, format_name):
+        """A decorator for registering subclasses for particular formats."""
+        def wrapper(builder):
+            cls.formats[format_name] = builder
+            return builder
+        return wrapper
+
+    @classmethod
+    def for_format(cls, format_name):
+        """Returns a celery task suitable for specified format."""
+        return cls.formats.get(format_name, BuildEbookTask)
+
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        """Transforms an librarian.WLDocument into an librarian.OutputFile.
+
+        By default, it just calls relevant wldoc.as_??? method.
+
+        """
+        return getattr(wldoc, "as_%s" % fieldfile.field.format_name)()
+
+    def run(self, fieldfile):
+        book = fieldfile.instance
+        out = self.transform(book.wldocument(), fieldfile)
+        fieldfile.save(None, File(open(out.get_filename())), save=False)
+        if book.pk is not None:
+            type(book).objects.filter(pk=book.pk).update(**{
+                fieldfile.field.attname: fieldfile
+            })
+        if fieldfile.field.format_name in app_settings.FORMAT_ZIPS:
+            remove_zip(app_settings.FORMAT_ZIPS[fieldfile.field.format_name])
+# Don't decorate BuildEbook, because we want to subclass it.
+BuildEbookTask = task(BuildEbook, ignore_result=True)
+
+
+@BuildEbook.register('txt')
+@task(ignore_result=True)
+class BuildTxt(BuildEbook):
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        return wldoc.as_text()
+
+
+@BuildEbook.register('pdf')
+@task(ignore_result=True)
+class BuildPdf(BuildEbook):
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        return wldoc.as_pdf(morefloats=settings.LIBRARIAN_PDF_MOREFLOATS)
+
+    def run(self, fieldfile):
+        BuildEbook.run(self, fieldfile)
+        clear_cache(fieldfile.instance.slug)
+
+
+@BuildEbook.register('html')
+@task(ignore_result=True)
+class BuildHtml(BuildEbook):
+    def run(self, fieldfile):
+        from django.core.files.base import ContentFile
+        from slughifi import slughifi
+        from sortify import sortify
+        from librarian import html
+        from catalogue.models import Fragment, Tag
+
+        book = fieldfile.instance
+
+        meta_tags = list(book.tags.filter(
+            category__in=('author', 'epoch', 'genre', 'kind')))
+        book_tag = book.book_tag()
+
+        html_output = self.transform(
+                        book.wldocument(parse_dublincore=False),
+                        fieldfile)
+        if html_output:
+            fieldfile.save(None, ContentFile(html_output.get_string()),
+                    save=False)
+            type(book).objects.filter(pk=book.pk).update(**{
+                fieldfile.field.attname: fieldfile
+            })
+
+            # get ancestor l-tags for adding to new fragments
+            ancestor_tags = []
+            p = book.parent
+            while p:
+                ancestor_tags.append(p.book_tag())
+                p = p.parent
+
+            # Delete old fragments and create them from scratch
+            book.fragments.all().delete()
+            # Extract fragments
+            closed_fragments, open_fragments = html.extract_fragments(fieldfile.path)
+            for fragment in closed_fragments.values():
+                try:
+                    theme_names = [s.strip() for s in fragment.themes.split(',')]
+                except AttributeError:
+                    continue
+                themes = []
+                for theme_name in theme_names:
+                    if not theme_name:
+                        continue
+                    tag, created = Tag.objects.get_or_create(
+                                        slug=slughifi(theme_name),
+                                        category='theme')
+                    if created:
+                        tag.name = theme_name
+                        tag.sort_key = sortify(theme_name.lower())
+                        tag.save()
+                    themes.append(tag)
+                if not themes:
+                    continue
+
+                text = fragment.to_string()
+                short_text = truncate_html_words(text, 15)
+                if text == short_text:
+                    short_text = ''
+                new_fragment = Fragment.objects.create(anchor=fragment.id, 
+                        book=book, text=text, short_text=short_text)
+
+                new_fragment.save()
+                new_fragment.tags = set(meta_tags + themes + [book_tag] + ancestor_tags)
+            book.html_built.send(sender=book)
+            return True
+        return False
 
 
 class OverwritingFieldFile(FieldFile):
@@ -28,7 +202,14 @@ class OverwritingFileField(models.FileField):
 try:
     # check for south
     from south.modelsinspector import add_introspection_rules
-
-    add_introspection_rules([], ["^catalogue\.fields\.OverwritingFileField"])
 except ImportError:
     pass
+else:
+    add_introspection_rules([
+        (
+            [EbookField],
+            [],
+            {'format_name': ('format_name', {})}
+        )
+    ], ["^catalogue\.fields\.EbookField"])
+    add_introspection_rules([], ["^catalogue\.fields\.OverwritingFileField"])
diff --git a/apps/catalogue/management/commands/importbooks.py b/apps/catalogue/management/commands/importbooks.py
index b323edc49..637e2148f 100644
--- a/apps/catalogue/management/commands/importbooks.py
+++ b/apps/catalogue/management/commands/importbooks.py
@@ -22,14 +22,9 @@ class Command(BaseCommand):
             help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
         make_option('-f', '--force', action='store_true', dest='force', default=False,
             help='Overwrite works already in the catalogue'),
-        make_option('-E', '--no-build-epub', action='store_false', dest='build_epub', default=True,
-            help='Don\'t build EPUB file'),
-        make_option('-M', '--no-build-mobi', action='store_false', dest='build_mobi', default=True,
-            help='Don\'t build MOBI file'),
-        make_option('-T', '--no-build-txt', action='store_false', dest='build_txt', default=True,
-            help='Don\'t build TXT file'),
-        make_option('-P', '--no-build-pdf', action='store_false', dest='build_pdf', default=True,
-            help='Don\'t build PDF file'),
+        make_option('-D', '--dont-build', dest='dont_build',
+            metavar="FORMAT,...",
+            help="Skip building specified formats"),
         make_option('-S', '--no-search-index', action='store_false', dest='search_index', default=True,
             help='Skip indexing imported works for search'),
         make_option('-w', '--wait-until', dest='wait_until', metavar='TIME',
@@ -42,22 +37,25 @@ class Command(BaseCommand):
 
     def import_book(self, file_path, options):
         verbose = options.get('verbose')
+        if options.get('dont_build'):
+            dont_build = options.get('dont_build').lower().split(',')
+        else:
+            dont_build = None
         file_base, ext = os.path.splitext(file_path)
         book = Book.from_xml_file(file_path, overwrite=options.get('force'),
-                                                    build_epub=options.get('build_epub'),
-                                                    build_txt=options.get('build_txt'),
-                                                    build_pdf=options.get('build_pdf'),
-                                                    build_mobi=options.get('build_mobi'),
-                                                    search_index=options.get('search_index'),
-                                                    search_index_reuse=True, search_index_tags=False)
+                                  dont_build=dont_build,
+                                  search_index=options.get('search_index'),
+                                  search_index_reuse=True,
+                                  search_index_tags=False)
         for ebook_format in Book.ebook_formats:
             if os.path.isfile(file_base + '.' + ebook_format):
                 getattr(book, '%s_file' % ebook_format).save(
                     '%s.%s' % (book.slug, ebook_format), 
-                    File(file(file_base + '.' + ebook_format)))
+                    File(file(file_base + '.' + ebook_format)),
+                    save=False
+                    )
                 if verbose:
                     print "Importing %s.%s" % (file_base, ebook_format)
-
         book.save()
 
     def import_picture(self, file_path, options):
diff --git a/apps/catalogue/migrations/0005_auto__chg_field_book_pdf_file__chg_field_book_html_file__chg_field_boo.py b/apps/catalogue/migrations/0005_auto__chg_field_book_pdf_file__chg_field_book_html_file__chg_field_boo.py
new file mode 100644
index 000000000..6f6bc810d
--- /dev/null
+++ b/apps/catalogue/migrations/0005_auto__chg_field_book_pdf_file__chg_field_book_html_file__chg_field_boo.py
@@ -0,0 +1,175 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+
+        # Changing field 'Book.pdf_file'
+        db.alter_column('catalogue_book', 'pdf_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='pdf'))
+
+        # Changing field 'Book.html_file'
+        db.alter_column('catalogue_book', 'html_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='html'))
+
+        # Changing field 'Book.xml_file'
+        db.alter_column('catalogue_book', 'xml_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='xml'))
+
+        # Changing field 'Book.txt_file'
+        db.alter_column('catalogue_book', 'txt_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='txt'))
+
+        # Changing field 'Book.fb2_file'
+        db.alter_column('catalogue_book', 'fb2_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='fb2'))
+
+        # Changing field 'Book.mobi_file'
+        db.alter_column('catalogue_book', 'mobi_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='mobi'))
+
+        # Changing field 'Book.epub_file'
+        db.alter_column('catalogue_book', 'epub_file', self.gf('catalogue.fields.EbookField')(max_length=100, format_name='epub'))
+
+        # Changing field 'Book.cover'
+        db.alter_column('catalogue_book', 'cover', self.gf('catalogue.fields.EbookField')(max_length=100, null=True, format_name='cover'))
+
+    def backwards(self, orm):
+
+        # Changing field 'Book.pdf_file'
+        db.alter_column('catalogue_book', 'pdf_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.html_file'
+        db.alter_column('catalogue_book', 'html_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.xml_file'
+        db.alter_column('catalogue_book', 'xml_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.txt_file'
+        db.alter_column('catalogue_book', 'txt_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.fb2_file'
+        db.alter_column('catalogue_book', 'fb2_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.mobi_file'
+        db.alter_column('catalogue_book', 'mobi_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.epub_file'
+        db.alter_column('catalogue_book', 'epub_file', self.gf('django.db.models.fields.files.FileField')(max_length=100))
+
+        # Changing field 'Book.cover'
+        db.alter_column('catalogue_book', 'cover', self.gf('django.db.models.fields.files.FileField')(max_length=100, null=True))
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'catalogue.book': {
+            'Meta': {'ordering': "('sort_key',)", 'object_name': 'Book'},
+            '_related_info': ('jsonfield.fields.JSONField', [], {'null': 'True', 'blank': 'True'}),
+            'changed_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'common_slug': ('django.db.models.fields.SlugField', [], {'max_length': '120'}),
+            'cover': ('catalogue.fields.EbookField', [], {'max_length': '100', 'null': 'True', 'format_name': "'cover'", 'blank': 'True'}),
+            'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'epub_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'epub'", 'blank': 'True'}),
+            'extra_info': ('jsonfield.fields.JSONField', [], {'default': "'{}'"}),
+            'fb2_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'fb2'", 'blank': 'True'}),
+            'gazeta_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'}),
+            'html_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'html'", 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'language': ('django.db.models.fields.CharField', [], {'default': "'pol'", 'max_length': '3', 'db_index': 'True'}),
+            'mobi_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'mobi'", 'blank': 'True'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'children'", 'null': 'True', 'to': "orm['catalogue.Book']"}),
+            'parent_number': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'pdf_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'pdf'", 'blank': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '120'}),
+            'sort_key': ('django.db.models.fields.CharField', [], {'max_length': '120', 'db_index': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '120'}),
+            'txt_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'txt'", 'blank': 'True'}),
+            'wiki_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'}),
+            'xml_file': ('catalogue.fields.EbookField', [], {'default': "''", 'max_length': '100', 'format_name': "'xml'", 'blank': 'True'})
+        },
+        'catalogue.bookmedia': {
+            'Meta': {'ordering': "('type', 'name')", 'object_name': 'BookMedia'},
+            'book': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'media'", 'to': "orm['catalogue.Book']"}),
+            'extra_info': ('jsonfield.fields.JSONField', [], {'default': "'{}'"}),
+            'file': ('catalogue.fields.OverwritingFileField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': "'100'"}),
+            'source_sha1': ('django.db.models.fields.CharField', [], {'max_length': '40', 'null': 'True', 'blank': 'True'}),
+            'type': ('django.db.models.fields.CharField', [], {'max_length': "'100'"}),
+            'uploaded_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'})
+        },
+        'catalogue.collection': {
+            'Meta': {'ordering': "('title',)", 'object_name': 'Collection'},
+            'book_slugs': ('django.db.models.fields.TextField', [], {}),
+            'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '120', 'primary_key': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '120', 'db_index': 'True'})
+        },
+        'catalogue.fragment': {
+            'Meta': {'ordering': "('book', 'anchor')", 'object_name': 'Fragment'},
+            'anchor': ('django.db.models.fields.CharField', [], {'max_length': '120'}),
+            'book': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'fragments'", 'to': "orm['catalogue.Book']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'short_text': ('django.db.models.fields.TextField', [], {}),
+            'text': ('django.db.models.fields.TextField', [], {})
+        },
+        'catalogue.tag': {
+            'Meta': {'ordering': "('sort_key',)", 'unique_together': "(('slug', 'category'),)", 'object_name': 'Tag'},
+            'book_count': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'category': ('django.db.models.fields.CharField', [], {'max_length': '50', 'db_index': 'True'}),
+            'changed_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'gazeta_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'db_index': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '120'}),
+            'sort_key': ('django.db.models.fields.CharField', [], {'max_length': '120', 'db_index': 'True'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']", 'null': 'True', 'blank': 'True'}),
+            'wiki_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'})
+        },
+        'catalogue.tagrelation': {
+            'Meta': {'unique_together': "(('tag', 'content_type', 'object_id'),)", 'object_name': 'TagRelation', 'db_table': "'catalogue_tag_relation'"},
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'object_id': ('django.db.models.fields.PositiveIntegerField', [], {'db_index': 'True'}),
+            'tag': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'items'", 'to': "orm['catalogue.Tag']"})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        }
+    }
+
+    complete_apps = ['catalogue']
\ No newline at end of file
diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 5672853f6..e6f08a91a 100644
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -3,7 +3,7 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 import re
-from django.conf import settings
+from django.conf import settings as settings
 from django.core.cache import get_cache
 from django.db import models
 from django.db.models import permalink
@@ -11,8 +11,11 @@ import django.dispatch
 from django.utils.datastructures import SortedDict
 from django.utils.translation import ugettext_lazy as _
 import jsonfield
+from catalogue import constants
+from catalogue.fields import EbookField
 from catalogue.models import Tag, Fragment, BookMedia
-from catalogue.utils import create_zip, split_tags, truncate_html_words, book_upload_path
+from catalogue.utils import create_zip, split_tags, book_upload_path
+from catalogue import app_settings
 from catalogue import tasks
 from newtagging import managers
 
@@ -28,7 +31,7 @@ class Book(models.Model):
             unique=True)
     common_slug = models.SlugField(_('slug'), max_length=120, db_index=True)
     language = models.CharField(_('language code'), max_length=3, db_index=True,
-                    default=settings.CATALOGUE_DEFAULT_LANGUAGE)
+                    default=app_settings.DEFAULT_LANGUAGE)
     description   = models.TextField(_('description'), blank=True)
     created_at    = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
     changed_at    = models.DateTimeField(_('creation date'), auto_now=True, db_index=True)
@@ -38,12 +41,13 @@ class Book(models.Model):
     wiki_link     = models.CharField(blank=True, max_length=240)
     # files generated during publication
 
-    cover = models.FileField(_('cover'), upload_to=book_upload_path('png'),
-                null=True, blank=True)
-    ebook_formats = ['pdf', 'epub', 'mobi', 'fb2', 'txt']
+    cover = EbookField('cover', _('cover'),
+                upload_to=book_upload_path('jpg'), null=True, blank=True)
+    ebook_formats = constants.EBOOK_FORMATS
     formats = ebook_formats + ['html', 'xml']
 
-    parent        = models.ForeignKey('self', blank=True, null=True, related_name='children')
+    parent = models.ForeignKey('self', blank=True, null=True,
+        related_name='children')
 
     _related_info = jsonfield.JSONField(blank=True, null=True, editable=False)
 
@@ -152,106 +156,33 @@ class Book(models.Model):
     has_daisy_file.short_description = 'DAISY'
     has_daisy_file.boolean = True
 
-    def wldocument(self, parse_dublincore=True):
+    def wldocument(self, parse_dublincore=True, inherit=True):
         from catalogue.import_utils import ORMDocProvider
         from librarian.parser import WLDocument
 
+        if inherit and self.parent:
+            meta_fallbacks = self.parent.cover_info()
+        else:
+            meta_fallbacks = None
+
         return WLDocument.from_file(self.xml_file.path,
                 provider=ORMDocProvider(self),
-                parse_dublincore=parse_dublincore)
-
-    def build_html(self):
-        from django.core.files.base import ContentFile
-        from slughifi import slughifi
-        from sortify import sortify
-        from librarian import html
-
-        meta_tags = list(self.tags.filter(
-            category__in=('author', 'epoch', 'genre', 'kind')))
-        book_tag = self.book_tag()
-
-        html_output = self.wldocument(parse_dublincore=False).as_html()
-        if html_output:
-            self.html_file.save('%s.html' % self.slug,
-                    ContentFile(html_output.get_string()))
-
-            # get ancestor l-tags for adding to new fragments
-            ancestor_tags = []
-            p = self.parent
-            while p:
-                ancestor_tags.append(p.book_tag())
-                p = p.parent
-
-            # Delete old fragments and create them from scratch
-            self.fragments.all().delete()
-            # Extract fragments
-            closed_fragments, open_fragments = html.extract_fragments(self.html_file.path)
-            for fragment in closed_fragments.values():
-                try:
-                    theme_names = [s.strip() for s in fragment.themes.split(',')]
-                except AttributeError:
-                    continue
-                themes = []
-                for theme_name in theme_names:
-                    if not theme_name:
-                        continue
-                    tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')
-                    if created:
-                        tag.name = theme_name
-                        tag.sort_key = sortify(theme_name.lower())
-                        tag.save()
-                    themes.append(tag)
-                if not themes:
-                    continue
-
-                text = fragment.to_string()
-                short_text = truncate_html_words(text, 15)
-                if text == short_text:
-                    short_text = ''
-                new_fragment = Fragment.objects.create(anchor=fragment.id, book=self,
-                    text=text, short_text=short_text)
-
-                new_fragment.save()
-                new_fragment.tags = set(meta_tags + themes + [book_tag] + ancestor_tags)
-            self.save()
-            self.html_built.send(sender=self)
-            return True
-        return False
-
-    # Thin wrappers for builder tasks
-    def build_cover(self):
-        """(Re)builds the cover image."""
-        return tasks.build_cover.delay(self.pk)
-    def build_pdf(self, *args, **kwargs):
-        """(Re)builds PDF."""
-        return tasks.build_pdf.delay(self.pk, *args, **kwargs)
-    def build_epub(self, *args, **kwargs):
-        """(Re)builds EPUB."""
-        return tasks.build_epub.delay(self.pk, *args, **kwargs)
-    def build_mobi(self, *args, **kwargs):
-        """(Re)builds MOBI."""
-        return tasks.build_mobi.delay(self.pk, *args, **kwargs)
-    def build_fb2(self, *args, **kwargs):
-        """(Re)build FB2"""
-        return tasks.build_fb2.delay(self.pk, *args, **kwargs)
-    def build_txt(self, *args, **kwargs):
-        """(Re)builds TXT."""
-        return tasks.build_txt.delay(self.pk, *args, **kwargs)
+                parse_dublincore=parse_dublincore,
+                meta_fallbacks=meta_fallbacks)
 
     @staticmethod
     def zip_format(format_):
         def pretty_file_name(book):
             return "%s/%s.%s" % (
-                b.extra_info['author'],
-                b.slug,
+                book.extra_info['author'],
+                book.slug,
                 format_)
 
         field_name = "%s_file" % format_
         books = Book.objects.filter(parent=None).exclude(**{field_name: ""})
         paths = [(pretty_file_name(b), getattr(b, field_name).path)
                     for b in books.iterator()]
-        return create_zip(paths,
-                    getattr(settings, "ALL_%s_ZIP" % format_.upper()))
+        return create_zip(paths, app_settings.FORMAT_ZIPS[format_])
 
     def zip_audiobooks(self, format_):
         bm = BookMedia.objects.filter(book=self, type=format_)
@@ -291,8 +222,11 @@ class Book(models.Model):
 
     @classmethod
     def from_text_and_meta(cls, raw_file, book_info, overwrite=False,
-            build_epub=True, build_txt=True, build_pdf=True, build_mobi=True, build_fb2=True,
-            search_index=True, search_index_tags=True, search_index_reuse=False):
+            dont_build=None, search_index=True,
+            search_index_tags=True, search_index_reuse=False):
+        if dont_build is None:
+            dont_build = set()
+        dont_build = set.union(set(dont_build), set(app_settings.DONT_BUILD))
 
         # check for parts before we do anything
         children = []
@@ -312,12 +246,17 @@ class Book(models.Model):
 
         if created:
             book_shelves = []
+            old_cover = None
         else:
             if not overwrite:
                 raise Book.AlreadyExists(_('Book %s already exists') % (
                         book_slug))
             # Save shelves for this book
             book_shelves = list(book.tags.filter(category='set'))
+            old_cover = book.cover_info()
+
+        # Save XML file
+        book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
 
         book.language = book_info.language
         book.title = book_info.title
@@ -332,44 +271,41 @@ class Book(models.Model):
 
         book.tags = set(meta_tags + book_shelves)
 
-        obsolete_children = set(b for b in book.children.all() if b not in children)
+        cover_changed = old_cover != book.cover_info()
+        obsolete_children = set(b for b in book.children.all()
+                                if b not in children)
         for n, child_book in enumerate(children):
             child_book.parent = book
             child_book.parent_number = n
             child_book.save()
+            if cover_changed:
+                child_book.parent_cover_changed()
         # Disown unfaithful children and let them cope on their own.
         for child in obsolete_children:
             child.parent = None
             child.parent_number = 0
             child.save()
             tasks.fix_tree_tags.delay(child)
-
-        # Save XML file
-        book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
+            if old_cover:
+                child.parent_cover_changed()
 
         # delete old fragments when overwriting
         book.fragments.all().delete()
         # Build HTML, fix the tree tags, build cover.
-        has_own_text = bool(book.build_html())
+        has_own_text = bool(book.html_file.build())
         tasks.fix_tree_tags.delay(book)
-        book.build_cover(book_info)
+        if 'cover' not in dont_build:
+            book.cover.build_delay()
         
         # No saves behind this point.
 
         if has_own_text:
-            if not settings.NO_BUILD_TXT and build_txt:
-                book.build_txt()
-            if not settings.NO_BUILD_FB2 and build_fb2:
-                book.build_fb2()
-
-        if not settings.NO_BUILD_EPUB and build_epub:
-            book.build_epub()
-
-        if not settings.NO_BUILD_PDF and build_pdf:
-            book.build_pdf()
-
-        if not settings.NO_BUILD_MOBI and build_mobi:
-            book.build_mobi()
+            for format_ in constants.EBOOK_FORMATS_WITHOUT_CHILDREN:
+                if format_ not in dont_build:
+                    getattr(book, '%s_file' % format_).build_delay()
+        for format_ in constants.EBOOK_FORMATS_WITH_CHILDREN:
+            if format_ not in dont_build:
+                getattr(book, '%s_file' % format_).build_delay()
 
         if not settings.NO_SEARCH_INDEX and search_index:
             book.search_index(index_tags=search_index_tags, reuse_index=search_index_reuse)
@@ -394,7 +330,8 @@ class Book(models.Model):
             sub_parent_tags = parent_tags + [book.book_tag()]
             for frag in book.fragments.all():
                 affected_tags.update(frag.tags)
-                frag.tags = list(frag.tags.exclude(category='book')) + sub_parent_tags
+                frag.tags = list(frag.tags.exclude(category='book')
+                                    ) + sub_parent_tags
             for child in book.children.all():
                 affected_tags.update(fix_subtree(child, sub_parent_tags))
             return affected_tags
@@ -415,6 +352,36 @@ class Book(models.Model):
             book.reset_theme_counter()
             book = book.parent
 
+    def cover_info(self, inherit=True):
+        """Returns a dictionary to serve as fallback for BookInfo.
+
+        For now, the only thing inherited is the cover image.
+        """
+        need = False
+        info = {}
+        for field in ('cover_url', 'cover_by', 'cover_source'):
+            val = self.extra_info.get(field)
+            if val:
+                info[field] = val
+            else:
+                need = True
+        if inherit and need and self.parent is not None:
+            parent_info = self.parent.cover_info()
+            parent_info.update(info)
+            info = parent_info
+        return info
+
+    def parent_cover_changed(self):
+        """Called when parent book's cover image is changed."""
+        if not self.cover_info(inherit=False):
+            if 'cover' not in app_settings.DONT_BUILD:
+                self.cover.build_delay()
+            for format_ in constants.EBOOK_FORMATS_WITH_COVERS:
+                if format_ not in app_settings.DONT_BUILD:
+                    getattr(self, '%s_file' % format_).build_delay()
+            for child in self.children.all():
+                child.parent_cover_changed()
+
     def related_info(self):
         """Keeps info about related objects (tags, media) in cache field."""
         if self._related_info is not None:
@@ -607,20 +574,9 @@ class Book(models.Model):
             return None
 
 
-def _has_factory(ftype):
-    has = lambda self: bool(getattr(self, "%s_file" % ftype))
-    has.short_description = ftype.upper()
-    has.__doc__ = None
-    has.boolean = True
-    has.__name__ = "has_%s_file" % ftype
-    return has
-
-    
 # add the file fields
-for t in Book.formats:
-    field_name = "%s_file" % t
-    models.FileField(_("%s file" % t.upper()),
-            upload_to=book_upload_path(t),
-            blank=True).contribute_to_class(Book, field_name)
-
-    setattr(Book, "has_%s_file" % t, _has_factory(t))
+for format_ in Book.formats:
+    field_name = "%s_file" % format_
+    EbookField(format_, _("%s file" % format_.upper()),
+            upload_to=book_upload_path(format_),
+            blank=True, default='').contribute_to_class(Book, field_name)
diff --git a/apps/catalogue/tasks.py b/apps/catalogue/tasks.py
index f1d8a9005..af00c35bd 100644
--- a/apps/catalogue/tasks.py
+++ b/apps/catalogue/tasks.py
@@ -34,75 +34,6 @@ def index_book(book_id, book_info=None):
         raise e
 
 
-def _build_ebook(book_id, ext, transform):
-    """Generic ebook builder."""
-    from django.core.files import File
-    from catalogue.models import Book
-
-    book = Book.objects.get(pk=book_id)
-    out = transform(book.wldocument())
-    field_name = '%s_file' % ext
-    # Update instead of saving the model to avoid race condition.
-    getattr(book, field_name).save('%s.%s' % (book.slug, ext),
-            File(open(out.get_filename())),
-            save=False
-        )
-    Book.objects.filter(pk=book_id).update(**{
-            field_name: getattr(book, field_name)
-        })
-
-
-@task(ignore_result=True)
-def build_txt(book_id):
-    """(Re)builds the TXT file for a book."""
-    _build_ebook(book_id, 'txt', lambda doc: doc.as_text())
-
-
-@task(ignore_result=True, rate_limit=settings.CATALOGUE_PDF_RATE_LIMIT)
-def build_pdf(book_id):
-    """(Re)builds the pdf file for a book."""
-    from catalogue.models import Book
-    from catalogue.utils import remove_zip
-    from waiter.utils import clear_cache
-
-    _build_ebook(book_id, 'pdf',
-        lambda doc: doc.as_pdf(morefloats=settings.LIBRARIAN_PDF_MOREFLOATS))
-    # Remove cached downloadables
-    remove_zip(settings.ALL_PDF_ZIP)
-    book = Book.objects.get(pk=book_id)
-    clear_cache(book.slug)
-
-
-@task(ignore_result=True, rate_limit=settings.CATALOGUE_EPUB_RATE_LIMIT)
-def build_epub(book_id):
-    """(Re)builds the EPUB file for a book."""
-    from catalogue.utils import remove_zip
-
-    _build_ebook(book_id, 'epub', lambda doc: doc.as_epub())
-    # remove zip with all epub files
-    remove_zip(settings.ALL_EPUB_ZIP)
-
-
-@task(ignore_result=True, rate_limit=settings.CATALOGUE_MOBI_RATE_LIMIT)
-def build_mobi(book_id):
-    """(Re)builds the MOBI file for a book."""
-    from catalogue.utils import remove_zip
-
-    _build_ebook(book_id, 'mobi', lambda doc: doc.as_mobi())
-    # remove zip with all mobi files
-    remove_zip(settings.ALL_MOBI_ZIP)
-
-
-@task(ignore_result=True, rate_limit=settings.CATALOGUE_FB2_RATE_LIMIT)
-def build_fb2(book_id, *args, **kwargs):
-    """(Re)builds the FB2 file for a book."""
-    from catalogue.utils import remove_zip
-
-    _build_ebook(book_id, 'fb2', lambda doc: doc.as_fb2())
-    # remove zip with all fb2 files
-    remove_zip(settings.ALL_FB2_ZIP)
-
-
 @task(ignore_result=True, rate_limit=settings.CATALOGUE_CUSTOMPDF_RATE_LIMIT)
 def build_custom_pdf(book_id, customizations, file_name):
     """Builds a custom PDF file."""
@@ -116,20 +47,3 @@ def build_custom_pdf(book_id, customizations, file_name):
                 customizations=customizations,
                 morefloats=settings.LIBRARIAN_PDF_MOREFLOATS)
         DefaultStorage().save(file_name, File(open(pdf.get_filename())))
-
-
-@task(ignore_result=True)
-def build_cover(book_id):
-    """(Re)builds the cover image."""
-    from StringIO import StringIO
-    from django.core.files.base import ContentFile
-    from librarian.cover import WLCover
-    from catalogue.models import Book
-
-    book = Book.objects.get(pk=book_id)
-    book_info = book.wldocument().book_info
-    cover = WLCover(book_info).image()
-    imgstr = StringIO()
-    cover.save(imgstr, 'png')
-    book.cover.save(None, ContentFile(imgstr.getvalue()), save=False)
-    Book.objects.filter(pk=book_id).update(cover=book.cover)
diff --git a/apps/catalogue/test_utils.py b/apps/catalogue/test_utils.py
index f42818f7e..59e51382a 100644
--- a/apps/catalogue/test_utils.py
+++ b/apps/catalogue/test_utils.py
@@ -1,31 +1,30 @@
-from django.conf import settings
+# -*- 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 django.test import TestCase
-import shutil
+from django.test.utils import override_settings
 import tempfile
 from slughifi import slughifi
 from librarian import WLURI
 
+@override_settings(
+    MEDIA_ROOT=tempfile.mkdtemp(prefix='djangotest_'),
+    CATALOGUE_DONT_BUILD={'pdf', 'mobi', 'epub', 'txt', 'fb2', 'cover'},
+    NO_SEARCH_INDEX = True,
+    CELERY_ALWAYS_EAGER = True,
+    CACHES={
+            'api': {'BACKEND': 'django.core.cache.backends.dummy.DummyCache'},
+            'default': {'BACKEND': 'django.core.cache.backends.dummy.DummyCache'},
+            'permanent': {'BACKEND': 'django.core.cache.backends.dummy.DummyCache'},
+        },
+)
 class WLTestCase(TestCase):
     """
         Generic base class for tests. Adds settings freeze and clears MEDIA_ROOT.
     """
     longMessage = True
 
-    def setUp(self):
-        self._MEDIA_ROOT, settings.MEDIA_ROOT = settings.MEDIA_ROOT, tempfile.mkdtemp(prefix='djangotest_')
-        settings.NO_SEARCH_INDEX = settings.NO_BUILD_PDF = settings.NO_BUILD_MOBI = settings.NO_BUILD_EPUB = settings.NO_BUILD_TXT = settings.NO_BUILD_FB2 = True
-        settings.CELERY_ALWAYS_EAGER = True
-        self._CACHES, settings.CACHES = settings.CACHES, {
-            'default': {
-                'BACKEND': 'django.core.cache.backends.dummy.DummyCache',
-            }
-        }
-
-    def tearDown(self):
-        shutil.rmtree(settings.MEDIA_ROOT, True)
-        settings.MEDIA_ROOT = self._MEDIA_ROOT
-        settings.CACHES = self._CACHES
-
 
 class PersonStub(object):
 
diff --git a/apps/catalogue/tests/book_import.py b/apps/catalogue/tests/book_import.py
index 09d0e1e79..76061d05a 100644
--- a/apps/catalogue/tests/book_import.py
+++ b/apps/catalogue/tests/book_import.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from __future__ import with_statement
+from django.conf import settings
 
 from django.core.files.base import ContentFile, File
 from catalogue.test_utils import *
@@ -418,7 +418,7 @@ class BookImportGenerateTest(WLTestCase):
         self.book = models.Book.from_xml_file(xml)
 
     def test_gen_pdf(self):
-        self.book.build_pdf()
+        self.book.pdf_file.build()
         book = models.Book.objects.get(pk=self.book.pk)
         self.assertTrue(path.exists(book.pdf_file.path))
 
@@ -426,7 +426,7 @@ class BookImportGenerateTest(WLTestCase):
         """This book contains a child."""
         xml = path.join(path.dirname(__file__), "files/fraszki.xml")
         parent = models.Book.from_xml_file(xml)
-        parent.build_pdf()
+        parent.pdf_file.build()
         parent = models.Book.objects.get(pk=parent.pk)
         self.assertTrue(path.exists(parent.pdf_file.path))
 
diff --git a/apps/catalogue/tests/bookmedia.py b/apps/catalogue/tests/bookmedia.py
index 5d2ba66c3..da427e8b5 100644
--- a/apps/catalogue/tests/bookmedia.py
+++ b/apps/catalogue/tests/bookmedia.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from django.conf import settings
 from os.path import basename, exists, join, dirname
 from django.core.files.base import ContentFile, File
 
diff --git a/apps/catalogue/utils.py b/apps/catalogue/utils.py
index bda7e0475..1ac0ee8d8 100644
--- a/apps/catalogue/utils.py
+++ b/apps/catalogue/utils.py
@@ -276,3 +276,27 @@ def clear_custom_pdf(book):
     """
     from waiter.utils import clear_cache
     clear_cache('book/%s' % book.slug)
+
+
+class AppSettings(object):
+    """Allows specyfying custom settings for an app, with default values.
+
+    Just subclass, set some properties and instantiate with a prefix.
+    Getting a SETTING from an instance will check for prefix_SETTING
+    in project settings if set, else take the default. The value will be
+    then filtered through _more_SETTING method, if there is one.
+
+    """
+    def __init__(self, prefix):
+        self._prefix = prefix
+
+    def __getattribute__(self, name):
+        if name.startswith('_'):
+            return object.__getattribute__(self, name)
+        value = getattr(settings,
+                         "%s_%s" % (self._prefix, name),
+                         object.__getattribute__(self, name))
+        more = "_more_%s" % name
+        if hasattr(self, more):
+            value = getattr(self, more)(value)
+        return value
diff --git a/apps/picture/tests/picture_import.py b/apps/picture/tests/picture_import.py
index 202acdd65..785aa6d28 100644
--- a/apps/picture/tests/picture_import.py
+++ b/apps/picture/tests/picture_import.py
@@ -2,11 +2,11 @@
 from __future__ import with_statement
 
 from os import path
-from django.test import TestCase
 from picture.models import Picture
+from catalogue.test_utils import WLTestCase
 
 
-class PictureTest(TestCase):
+class PictureTest(WLTestCase):
     
     def test_import(self):
         picture = Picture.from_xml_file(path.join(path.dirname(__file__), "files/kandinsky-composition-viii.xml"))
diff --git a/apps/search/tests/index.py b/apps/search/tests/index.py
index 738288892..5155a84e4 100644
--- a/apps/search/tests/index.py
+++ b/apps/search/tests/index.py
@@ -1,33 +1,24 @@
 # -*- coding: utf-8 -*-
-
-from __future__ import with_statement
-
 from django.conf import settings
-from search import Index, Search, IndexStore, JVM, SearchResult
-from catalogue import models
+from django.test.utils import override_settings
 from catalogue.test_utils import WLTestCase
 from lucene import PolishAnalyzer, Version
-#from nose.tools import raises
 from os import path
+import tempfile
+from catalogue import models
+from search import Search, SearchResult
 
 
+@override_settings(
+    SEARCH_INDEX = tempfile.mkdtemp(prefix='djangotest_search_'),
+)
 class BookSearchTests(WLTestCase):
     def setUp(self):
-        JVM.attachCurrentThread()
         WLTestCase.setUp(self)
-        settings.NO_SEARCH_INDEX = False
-        settings.SEARCH_INDEX = path.join(settings.MEDIA_ROOT, 'search')
 
         txt = path.join(path.dirname(__file__), 'files/fraszka-do-anusie.xml')
-        self.book = models.Book.from_xml_file(txt)
-
-        index = Index()
-        index.open()
-        try:
-            index.index_book(self.book)
-        except:
-            index.close()
-
+        with self.settings(NO_SEARCH_INDEX=False):
+            self.book = models.Book.from_xml_file(txt)
         self.search = Search()
 
     def test_search_perfect_book_author(self):
diff --git a/lib/librarian b/lib/librarian
index 17a9ed3b7..cbe81ee35 160000
--- a/lib/librarian
+++ b/lib/librarian
@@ -1 +1 @@
-Subproject commit 17a9ed3b7ef12e0786ddf46bf8a52b1087224762
+Subproject commit cbe81ee35b07783b4f52c3d3dda83db7aaf82d34
diff --git a/wolnelektury/settings/custom.py b/wolnelektury/settings/custom.py
index 6bf5a8806..446c730ee 100644
--- a/wolnelektury/settings/custom.py
+++ b/wolnelektury/settings/custom.py
@@ -5,29 +5,12 @@ API_WAIT = 10
 MAX_TAG_LIST = 6
 
 NO_SEARCH_INDEX = False
-NO_BUILD_EPUB = False
-NO_BUILD_TXT = False
-NO_BUILD_FB2 = False
-# You'll need XeLaTeX to generate PDF files.
-NO_BUILD_PDF = True
 NO_CUSTOM_PDF = True
-# You'll need Calibre installed to generate MOBI files.
-NO_BUILD_MOBI = True
-
-
-ALL_EPUB_ZIP = 'wolnelektury_pl_epub'
-ALL_PDF_ZIP = 'wolnelektury_pl_pdf'
-ALL_MOBI_ZIP = 'wolnelektury_pl_mobi'
-ALL_FB2_ZIP = 'wolnelektury_pl_fb2'
 
 CATALOGUE_DEFAULT_LANGUAGE = 'pol'
 PUBLISH_PLAN_FEED = 'http://redakcja.wolnelektury.pl/documents/track/editor-proofreading/?published=false'
 
 # limit rate for ebooks creation
-CATALOGUE_PDF_RATE_LIMIT = '1/m'
-CATALOGUE_EPUB_RATE_LIMIT = '6/m'
-CATALOGUE_FB2_RATE_LIMIT = '5/m'
-CATALOGUE_MOBI_RATE_LIMIT = '5/m'
 CATALOGUE_CUSTOMPDF_RATE_LIMIT = '1/m'
 
 # set to 'new' or 'old' to skip time-consuming test