} } Can session hashes only be one level deep? For example, } } session[:person_id] = @person.id } session[:person_full_name] = @person.full_name } } works where this returns an Array error: } } session[:person][:id] = @person.id } session[:person][:full_name] = @person.full_name } } Error: } You have a nil object when you didn't expect it! } You might have expected an instance of Array. } The error occured while evaluating nil. } } Is there no way to nest all the person info inside session[:person]?
Remember what you is actually going on here. When you say
session[:person_id] = @person.id
...you are calling = on the session object. That works fine, because session supports =. When you say
session[:person][:id] = @person.id
...you are first calling on session and getting a nil back, because it hasn't been set to anything. You are then calling = on that nil, which gives you the error you see. Try this instead:
session[:person] = { :id => @person.id, :full_name => @person.full_name }
With that, session[:person] will contain a hash, and session[:person][:id] will behave as expected.
--Greg