def hook(self, obj):
        """
        This is where an admin can find what url to point the webhook to.

        Doing it as an absolute url lets us cheat and make the browser figure
        out the host for us.

        Requires HookPress: http://wordpress.org/plugins/hookpress/
        """
        try:
            return (u'<a href="{}" title="Add a save_post hook with the ID">'
                'Webhook</a>'.format(obj.hook_url))
        except NoReverseMatch:
            return ''