bookmark fixed in the podcast detail

apps/podcast/serializers.py

@@ -249,7 +249,7 @@ class PodcastPlaylistDetailSerializer(serializers.ModelSerializer):
         book_mark = BookmarkStatusSerializer.get_bookmark_info(
             obj=obj,
             user=user,
-            service='podcast_playlist'  
+            service='podcast'  
         )
         return book_mark.get('is_bookmarked', False)
 
@@ -268,7 +268,7 @@ class PodcastPlaylistDetailSerializer(serializers.ModelSerializer):
             
         rate_info = Rate.get_user_rate(
             user=user,
-            service='podcast_playlist',
+            service='podcast',
             content_id=obj.id
         )
         
@@ -279,7 +279,7 @@ class PodcastPlaylistDetailSerializer(serializers.ModelSerializer):
         from apps.bookmark.models.rate import Rate
         
         return Rate.get_average_rate(
-            service='podcast_playlist',
+            service='podcast',
             content_id=obj.id
         )