epub: fix exception when articles have the same title

This commit fixes an exception occuring when exporting as epub several
articles with the same title. The chapter filename is now derived from
title and url.

Fixes #3642

Signed-off-by: Kevin Decherf <kevin@kdecherf.com>

diff --git a/src/Wallabag/CoreBundle/Helper/EntriesExport.php b/src/Wallabag/CoreBundle/Helper/EntriesExport.php
index a2aa4d134e4aebe60abcbfce631d1cadc40c18cf..f981ee50e61b8a323ae091f97f1139b82896de17 100644 (file)
--- a/src/Wallabag/CoreBundle/Helper/EntriesExport.php
+++ b/src/Wallabag/CoreBundle/Helper/EntriesExport.php
@@ -188,7 +188,7 @@ class EntriesExport
             foreach ($entry->getTags() as $tag) {
                 $book->setSubject($tag->getLabel());
             }
-            $filename = sha1($entry->getTitle());
+            $filename = sha1(sprintf('%s:%s', $entry->getUrl(), $entry->getTitle()));
 
             $publishedBy = $entry->getPublishedBy();
             $authors = $this->translator->trans('export.unknown');