feed: date from txdate=

feed

@@ -188,7 +188,9 @@ def get_audio_from_description(text):
         except ValueError:
             logging.warning('could not parse txdate %s', metadata['txdate'])
             del metadata['txdate']
-    a = Audio(unquote(url), metadata.get('durata', None))
+    a = Audio(unquote(url),
+              duration=metadata.get('durata', None),
+              date=metadata.get('txdate', None))
 
     if 'txdate' in metadata and 'replica' in metadata:
         if metadata['replica'].endswith('g'):
@@ -214,7 +216,6 @@ def get_audio_from_dir(dirpath):
 
 
 def get_item_date(el):
-    # TODO: pick from txdate=
     el_date = el.find('pubdate')
     if el_date is not None:
         return datetime.datetime.strptime(
@@ -234,7 +235,8 @@ def get_urls(tree):
             except Exception as exc:
                 logging.info('error getting duration for `%s`' % title)
                 continue
-            audio.date = get_item_date(it)
+            if audio.date is None:
+                audio.date = get_item_date(it)
             yield audio