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

diff --git a/src/catalogue/fields.py b/src/catalogue/fields.py
index bc05aa3..21d2bcf 100644 (file)
--- a/src/catalogue/fields.py
+++ b/src/catalogue/fields.py
@@ -4,11 +4,12 @@
 #
 from django.conf import settings
 from django.core.files import File
+from django.core.files.storage import FileSystemStorage
 from django.db import models
 from django.db.models.fields.files import FieldFile
 from catalogue import app_settings
 from catalogue.constants import LANGUAGES_3TO2
-from catalogue.utils import remove_zip, truncate_html_words, gallery_path
+from catalogue.utils import remove_zip, truncate_html_words, gallery_path, gallery_url
 from celery.task import Task, task
 from celery.utils.log import get_task_logger
 from waiter.utils import clear_cache
@@ -130,7 +131,15 @@ class BuildPdf(BuildEbook):
 class BuildEpub(BuildEbook):
     @staticmethod
     def transform(wldoc, fieldfile):
-        return wldoc.as_epub(cover=True)
+        return wldoc.as_epub(cover=True, ilustr_path=gallery_path(wldoc.book_info.url.slug))
+
+
+@BuildEbook.register('mobi')
+@task(ignore_result=True)
+class BuildMobi(BuildEbook):
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        return wldoc.as_mobi(cover=True, ilustr_path=gallery_path(wldoc.book_info.url.slug))
 
 
 @BuildEbook.register('html')
@@ -145,9 +154,7 @@ class BuildHtml(BuildEbook):
 
         book = fieldfile.instance
 
-        html_output = self.transform(
-                        book.wldocument(parse_dublincore=False),
-                        fieldfile)
+        html_output = self.transform(book.wldocument(parse_dublincore=False), fieldfile)
 
         # Delete old fragments, create from scratch if necessary.
         book.fragments.all().delete()
@@ -211,6 +218,17 @@ class BuildHtml(BuildEbook):
             return True
         return False
 
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        # ugly, but we can't use wldoc.book_info here
+        from librarian import DCNS
+        url_elem = wldoc.edoc.getroot().find('.//' + DCNS('identifier.url'))
+        if url_elem is None:
+            gallery = ''
+        else:
+            gallery = gallery_url(slug=url_elem.text.rsplit('/', 1)[1])
+        return wldoc.as_html(options={'gallery': "'%s'" % gallery})
+
 
 @BuildEbook.register('cover_thumb')
 @task(ignore_result=True)
@@ -221,6 +239,7 @@ class BuildCoverThumb(BuildEbook):
         return WLCover(wldoc.book_info, height=193).output_file()
 
 
+# not used, but needed for migrations
 class OverwritingFieldFile(FieldFile):
     """
         Deletes the old file before saving the new one.
@@ -236,3 +255,10 @@ class OverwritingFieldFile(FieldFile):
 
 class OverwritingFileField(models.FileField):
     attr_class = OverwritingFieldFile
+
+
+class OverwriteStorage(FileSystemStorage):
+
+    def get_available_name(self, name, max_length=None):
+        self.delete(name)
+        return name