If you don't define attributes explicitly on the model, Shale will ignore them.
Regarding attributes that you defined but still don't want to be assigned, you should probably filter them before passing them to Shale, or alternatively filter them with Shale before passing them further down the stack (e.g to ActiveRecord)
Regarding attributes that you defined but still don't want to be assigned, you should probably filter them before passing them to Shale, or alternatively filter them with Shale before passing them further down the stack (e.g to ActiveRecord)