Sand Box:)

If u need to use latest() function when get something from db. First use need to aware of latest( field_name ) of model._meta = 'field_name' in your model to make it clear what your latest out from your db.

1.when u create 'sample_field' field in model with field attribute 'related_name'. 2.u can backward retrieve data with 'sample_fields' will check later