X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/24ae804e7a88a17dcefd0e671eb08e548de14ae8..73046626ddfd1cd23d0d4bdd904d1a7bae76c455:/src/cover/views.py

diff --git a/src/cover/views.py b/src/cover/views.py
index 25663a09..d00123cc 100644
--- a/src/cover/views.py
+++ b/src/cover/views.py
@@ -22,7 +22,7 @@ from cover import forms
 from cover.utils import get_import_data
 
 
-PREVIEW_SIZE = (216, 300)
+PREVIEW_SIZE = (212, 300)
 
 
 def preview(request, book, chunk=None, rev=None):
@@ -31,7 +31,14 @@ def preview(request, book, chunk=None, rev=None):
     If chunk and rev number are given, use version from given revision.
     If rev is not given, use publishable version.
     """
-    chunk = Chunk.get(book, chunk)
+    try:
+        chunk = Chunk.get(book, chunk)
+    except Chunk.DoesNotExist:
+        raise Http404
+
+    if chunk.book.cover and rev is None and not request.GET.get('width') and not request.GET.get('height'):
+        return HttpResponseRedirect(chunk.book.cover.url)
+
     if rev is not None:
         try:
             revision = chunk.at_revision(rev)