Add a new VRF.

def add(self):
        """ Add a new VRF.
        """

        c.action = 'add'

        if 'action' in request.params:
            if request.params['action'] == 'add':
                v = VRF()
                if request.params['rt'].strip() != '':
                    v.rt = request.params['rt']
                if request.params['name'].strip() != '':
                    v.name = request.params['name']
                v.description = request.params['description']

                v.save()
                redirect(url(controller='vrf', action='list'))

        return render('/vrf_add.html')