updated to get card name

app/models/__init__.py

@@ -7,6 +7,7 @@ from app.models.content import Content
 from app.models.server_log import ServerLog
 from app.models.player_feedback import PlayerFeedback
 from app.models.player_edit import PlayerEdit
+from app.models.player_user import PlayerUser
 
 __all__ = [
     'User',
@@ -17,6 +18,7 @@ __all__ = [
     'ServerLog',
     'PlayerFeedback',
     'PlayerEdit',
+    'PlayerUser',
     'group_content',
     'playlist_content',
 ]