keep user-metadata intact when reloading

Author: xgi

castero/database.py

@@ -226,8 +226,16 @@ def reload(self, display=None) -> None:
             else:
                 new_feed = Feed(file=feed.key)
 
+            # keep user metadata for episodes intact
+            new_episodes = new_feed.parse_episodes()
+            old_episodes = self.episodes(feed)
+            for new_ep in new_episodes:
+                matching_olds = [old_ep for old_ep in old_episodes if old_ep.title == new_ep.title]
+                if len(matching_olds) == 1:
+                    new_ep.replace_from(matching_olds[0])
+
             self.replace_feed(new_feed)
-            self.replace_episodes(new_feed, new_feed.parse_episodes())
+            self.replace_episodes(new_feed, new_episodes)
 
         if display is not None:
             display.change_status("Feeds successfully reloaded")

castero/episode.py

@@ -170,6 +170,14 @@ def check_downloaded(self) -> bool:
                     self._downloaded = True
         return self._downloaded
 
+    def replace_from(self, episode) -> None:
+        """Replace user-specific metadata from the given episode.
+
+        Args:
+            episode: the source Episode
+        """
+        self._played = episode._played
+
     @property
     def downloaded(self) -> bool:
         """Determines whether the episode is downloaded.