Codeigniter login implementation

This task regards the login implementation for a backoffice portal. The login must handle 5 different user type and redirect them in a dashboard page. For each user type, the landing dashboard must contains different menù item (i'll provide them). All implementation logic MUST be done through Codeigniter. The login page (a simple popup) and the dashboard are already available as HTML template. These page must be transformed and integrated in Codeigniter code. I'll provide the MySQL schema, user table involved and the template to transform (login and dashboard page).