Add a pool.

def add(self):
        """ Add a pool.
        """

        # Adding to NIPAP
        if request.method == 'POST':
            p = Pool()
            p.name = request.params.get('name')
            p.description = request.params.get('description')
            p.default_type = request.params.get('default_type')

            if request.params['ipv4_default_prefix_length'].strip() != '':
                p.ipv4_default_prefix_length = request.params['ipv4_default_prefix_length']

            if request.params['ipv6_default_prefix_length'].strip() != '':
                p.ipv6_default_prefix_length = request.params['ipv6_default_prefix_length']

            p.save()
            redirect(url(controller = 'pool', action = 'list'))

        return render("/pool_add.html")