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

diff --git a/apps/catalogue/fields.py b/apps/catalogue/fields.py
index 2c4e4d5..68aaa40 100644 (file)
--- a/apps/catalogue/fields.py
+++ b/apps/catalogue/fields.py
@@ -8,8 +8,7 @@ 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 celery.task import Task, task
 from waiter.utils import clear_cache
 
 
@@ -18,11 +17,11 @@ class EbookFieldFile(FieldFile):
 
     def build(self):
         """Build the ebook immediately."""
-        return self.field.builder(self)
+        return self.field.builder.build(self)
 
     def build_delay(self):
         """Builds the ebook in a delayed task."""
-        return self.field.builder.delay(self)
+        return self.field.builder.delay(self.instance, self.field.attname)
 
 
 class EbookField(models.FileField):
@@ -75,7 +74,11 @@ class BuildEbook(Task):
         """
         return getattr(wldoc, "as_%s" % fieldfile.field.format_name)()
 
-    def run(self, fieldfile):
+    def run(self, obj, field_name):
+        """Just run `build` on FieldFile, can't pass it directly to Celery."""
+        return self.build(getattr(obj, field_name))
+
+    def build(self, fieldfile):
         book = fieldfile.instance
         out = self.transform(book.wldocument(), fieldfile)
         fieldfile.save(None, File(open(out.get_filename())), save=False)
@@ -102,17 +105,26 @@ class BuildTxt(BuildEbook):
 class BuildPdf(BuildEbook):
     @staticmethod
     def transform(wldoc, fieldfile):
-        return wldoc.as_pdf(morefloats=settings.LIBRARIAN_PDF_MOREFLOATS)
+        return wldoc.as_pdf(morefloats=settings.LIBRARIAN_PDF_MOREFLOATS,
+            cover=True)
 
-    def run(self, fieldfile):
-        BuildEbook.run(self, fieldfile)
+    def build(self, fieldfile):
+        BuildEbook.build(self, fieldfile)
         clear_cache(fieldfile.instance.slug)
 
 
+@BuildEbook.register('epub')
+@task(ignore_result=True)
+class BuildEpub(BuildEbook):
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        return wldoc.as_epub(cover=True)
+
+
 @BuildEbook.register('html')
 @task(ignore_result=True)
 class BuildHtml(BuildEbook):
-    def run(self, fieldfile):
+    def build(self, fieldfile):
         from django.core.files.base import ContentFile
         from slughifi import slughifi
         from sortify import sortify