search for: fkpresentationid

Hi, I''m creating an RoR application right now and i''ve got the following question: An user has one presentation. So i''ve got an user table and in that table is an field fkPresentationID. Now i want to create an new user and at the same moment an new presentation for that user. I thought it would work with something like this, but it didn''t work. @user = User.new(params[:user]) @user.presentation.new(params[:presentation]) if @user.save flash[:notice] = ''OK...

...ant to get all the presentations that are in state emailed. I now got in my contactstate model has_and_belongs_to_many :presentation, :join_table => ''presentationcontactstates'', :foreign_key => ''fkcontactstateID'', :association_foreign_key => ''fkpresentationID'' So with Contactstate.find(:all, conditions => ''contactstate IN (1,3,6)'').presentations i''ve got them. But now i want to filter those results with for example city = ''New York'' There i get stuck... Does anyone know how to do this? Thank...