More advance signup flow

app/controllers/new_suppliers_controller.rb

@@ -14,7 +14,9 @@ class NewSuppliersController < ApplicationController
     @new_supplier.current_employee = current_employee
 
     if @new_supplier.save
-      redirect_to supplier_root_path
+      sign_in @new_supplier.employee unless current_employee
+      session[:supplier_id] = @new_supplier.supplier.try(:id)
+      redirect_to supplier_root_path(anchor: '/pages/introduction')
     else
       render 'new'
     end